[DOCS] 修正商品資料讀取 API 說明，移除關鍵字搜尋描述

- 修改 now-push.md 確保 main 只能從 demo 合併
- 明列 dev -> demo -> main 的強制合併順序

.agent/skills/activity-logging/SKILL.md

@@ -1,158 +0,0 @@
----
-name: 操作紀錄實作規範
-description: 規範系統內 Activity Log 的實作標準，包含後端資料過濾、快照策略、與前端顯示邏輯。
----
-
-# 操作紀錄實作規範
-
-本文件說明如何在開發新功能時，依據系統規範實作 `spatie/laravel-activitylog` 操作紀錄，確保資料儲存效率與前端顯示一致性。
-
-## 1. 後端實作標準 (Backend)
-
-所有 Model 之操作紀錄應遵循「僅儲存變動資料」與「保留關鍵快照」兩大原則。
-
-### 1.1 啟用 Activity Log
-
-在 Model 中引用 `LogsActivity` trait 並實作 `getActivitylogOptions` 方法。
-
-```php
-use Spatie\Activitylog\Traits\LogsActivity;
-use Spatie\Activitylog\LogOptions;
-
-class Product extends Model
-{
-    use LogsActivity;
-
-    public function getActivitylogOptions(): LogOptions
-    {
-        return LogOptions::defaults()
-            ->logAll()
-            ->logOnlyDirty() // ✅ 關鍵：只記錄有變動的欄位
-            ->dontSubmitEmptyLogs(); // 若無變動則不記錄
-    }
-}
-```
-
-### 1.2 手動記錄 (Manual Logging)
-
-若需在 Controller 手動記錄（例如需客製化邏輯），**必須**自行實作變動過濾，不可直接儲存所有屬性。
-
-**錯誤範例 (Do NOT do this):**
-```php
-// ❌ 錯誤：這會導致每次更新都記錄所有欄位，即使它們沒變
-activity()
-    ->withProperties(['attributes' => $newAttributes, 'old' => $oldAttributes])
-    ->log('updated');
-```
-
-**正確範例 (Do this):**
-```php
-// ✅ 正確：自行比對差異，只存變動值
-$changedAttributes = [];
-$changedOldAttributes = [];
-
-foreach ($newAttributes as $key => $value) {
-    if ($value != ($oldAttributes[$key] ?? null)) {
-        $changedAttributes[$key] = $value;
-        $changedOldAttributes[$key] = $oldAttributes[$key] ?? null;
-    }
-}
-
-if (!empty($changedAttributes)) {
-    activity()
-        ->withProperties(['attributes' => $changedAttributes, 'old' => $changedOldAttributes])
-        ->log('updated');
-}
-```
-
-### 1.3 快照策略 (Snapshot Strategy)
-
-為確保資料被刪除後仍能辨識操作對象，**必須**在 `properties.snapshot` 中儲存關鍵識別資訊（如名稱、代號、類別名稱）。
-
-**主要方式：使用 `tapActivity` (推薦)**
-
-```php
-public function tapActivity(\Spatie\Activitylog\Contracts\Activity $activity, string $eventName)
-{
-    $properties = $activity->properties;
-    $snapshot = $properties['snapshot'] ?? [];
-
-    // 保存關鍵關聯名稱 (避免關聯資料刪除後 ID 失效)
-    $snapshot['category_name'] = $this->category ? $this->category->name : null;
-    $snapshot['po_number'] = $this->code; // 儲存單號
-    
-    // 保存自身名稱 (Context)
-    $snapshot['name'] = $this->name;
-
-    $properties['snapshot'] = $snapshot;
-    $activity->properties = $properties;
-}
-```
-
-## 2. 顯示名稱映射 (UI Mapping)
-
-### 2.1 對象名稱映射 (Mapping)
-
-需在 `ActivityLogController.php` 中設定 Model 與中文名稱的對應，讓前端列表能顯示中文對象（如「公共事業費」而非 `UtilityFee`）。
-
-**位置**: `app/Http/Controllers/Admin/ActivityLogController.php`
-
-```php
-protected function getSubjectMap()
-{
-    return [
-        'App\Modules\Inventory\Models\Product' => '商品',
-        'App\Modules\Finance\Models\UtilityFee' => '公共事業費', // ✅ 新增映射
-    ];
-}
-```
-
-### 2.2 欄位名稱中文化 (Field Translation)
-
-需在前端 `ActivityDetailDialog` 中設定欄位名稱的中文翻譯。
-
-**位置**: `resources/js/Components/ActivityLog/ActivityDetailDialog.tsx`
-
-```typescript
-const fieldLabels: Record<string, string> = {
-    // ... 既有欄位
-    'transaction_date': '費用日期',
-    'category': '費用類別',
-    'amount': '金額',
-};
-```
-
-## 3. 前端顯示邏輯 (Frontend)
-
-### 3.1 列表描述生成 (Description Generation)
-
-前端 `LogTable.tsx` 會依據 `properties.snapshot` 中的欄位自動組建描述（例如：「Admin 新增 電話費 公共事業費」）。
-
-若您的 Model 使用了特殊的識別欄位（例如 `category`），**必須**將其加入 `nameParams` 陣列中。
-
-**位置**: `resources/js/Components/ActivityLog/LogTable.tsx`
-
-```typescript
-const nameParams = [
-    'po_number', 'name', 'code', 
-    'category_name', 
-    'category' // ✅ 確保加入此欄位，前端才能抓到 $snapshot['category']
-];
-```
-
-### 3.2 詳情過濾邏輯
-
-前端 `ActivityDetailDialog` 已內建智慧過濾邏輯：
-- **Created**: 顯示初始化欄位。
-- **Updated**: **僅顯示有變動的欄位** (由 `isChanged` 判斷)。
-- **Deleted**: 顯示刪除前的完整資料。
-
-開發者僅需確保傳入的 `attributes` 與 `old` 資料結構正確，過濾邏輯會自動運作。
-
-## 檢核清單
-
-- [ ] **Backend**: Model 是否已設定 `logOnlyDirty` 或手動實作過濾？
-- [ ] **Backend**: 是否已透過 `tapActivity` 或手動方式記錄 Snapshot（關鍵名稱）？
-- [ ] **Backend**: 是否已在 `ActivityLogController` 加入 Model 中文名稱映射？
-- [ ] **Frontend**: 是否已在 `ActivityDetailDialog` 加入欄位中文翻譯？
-- [ ] **Frontend**: 若使用特殊識別欄位，是否已加入 `LogTable` 的 `nameParams`？

.agent/skills/permission-management/SKILL.md

@@ -1,140 +0,0 @@
----
-name: 權限管理與實作規範
-description: 為新功能實作權限控制的完整流程規範，包含後端 Seeder 設定、Middleware 路由保護與前端權限判斷。
----
-
-# 權限管理與實作規範
-
-本文件說明如何在新增功能時，一併實作完整的權限控制機制。專案採用 `spatie/laravel-permission` 套件進行權限管理。
-
-## 1. 定義權限 (Backend)
-
-所有權限皆定義於 `database/seeders/PermissionSeeder.php`。
-
-### 步驟：
-
-1.  開啟 `database/seeders/PermissionSeeder.php`。
-2.  在 `$permissions` 陣列中新增功能對應的權限字串。
-    *   **命名慣例**：`{resource}.{action}` (例如：`system.view_logs`, `products.create`)
-    *   常用動作：`view`, `create`, `edit`, `delete`, `publish`, `export`
-3.  在下方「角色分配」區段，將新權限分配給適合的角色。
-    *   `super-admin`：通常擁有所有權限（程式碼中 `Permission::all()` 自動涵蓋，無需手動新增）。
-    *   `admin`：通常擁有大部分權限。
-    *   其他角色 (`warehouse-manager`, `purchaser`, `viewer`)：依業務邏輯分配。
-
-### 範例：
-
-```php
-// 1. 新增權限字串
-$permissions = [
-    // ... 現有權限
-    'system.view_logs', // 新增：檢視系統日誌
-];
-
-// ...
-
-// 2. 分配給角色
-$admin->givePermissionTo([
-    // ... 現有權限
-    'system.view_logs',
-]);
-```
-
-## 2. 套用資料庫變更
-
-修改 Seeder 後，必須重新執行 Seeder 以將權限寫入資料庫。
-
-```bash
-# 對於所有租戶執行 Seeder (開發環境)
-php artisan tenants:seed --class=PermissionSeeder
-```
-
-## 3. 路由保護 (Backend Middleware)
-
-在 `routes/web.php` 中，使用 `permission:{name}` middleware 保護路由。
-
-### 範例：
-
-```php
-// 單一權限保護
-Route::get('/logs', [LogController::class, 'index'])
-    ->middleware('permission:system.view_logs')
-    ->name('logs.index');
-
-// 路由群組保護
-Route::middleware('permission:products.view')->group(function () {
-    // ...
-});
-
-// 多重權限 (OR 邏輯：有其一即可)
-Route::middleware('permission:products.create|products.edit')->group(function () {
-    // ...
-});
-```
-
-## 4. 前端權限判斷 (React Component)
-
-使用自訂 Hook `usePermission` 來控制 UI 元素的顯示（例如：隱藏沒有權限的按鈕）。
-
-### 引入 Hook：
-
-```tsx
-import { usePermission } from "@/hooks/usePermission";
-```
-
-### 使用方式：
-
-```tsx
-export default function ProductIndex() {
-    const { can } = usePermission();
-
-    return (
-        <div>
-            <h1>商品列表</h1>
-            
-            {/* 只有擁有 create 權限才顯示按鈕 */}
-            {can('products.create') && (
-                <Button>新增商品</Button>
-            )}
-
-            {/* 組合判斷 */}
-            {can('products.edit') && <EditButton />}
-        </div>
-    );
-}
-```
-
-### 權限 Hook 介面說明：
-
-- `can(permission: string)`: 檢查當前使用者是否擁有指定權限。
-- `canAny(permissions: string[])`: 檢查當前使用者是否擁有陣列中**任一**權限。
-- `hasRole(role: string)`: 檢查當前使用者是否擁有指定角色。
-
-## 5. 配置權限群組名稱 (Backend UI Config)
-
-為了讓新權限在「角色與權限」管理介面中顯示正確的中文分組標題，需修改 Controller 設定。
-
-### 步驟：
-
-1.  開啟 `app/Http/Controllers/Admin/RoleController.php`。
-2.  找到 `getGroupedPermissions` 方法。
-3.  在 `$groupDefinitions` 陣列中，新增 `{resource}` 對應的中文名稱。
-
-### 範例：
-
-```php
-$groupDefinitions = [
-    'products' => '商品資料管理',
-    // ...
-    'utility_fees' => '公共事業費管理', // 新增此行
-];
-```
-
-## 檢核清單
-
-- [ ] `PermissionSeeder.php` 已新增權限字串。
-- [ ] `PermissionSeeder.php` 已將新權限分配給對應角色。
-- [ ] 已執行 `php artisan tenants:seed --class=PermissionSeeder` 更新資料庫。
-- [ ] `RoleController.php` 已新增權限群組的中文名稱映射。
-- [ ] 後端路由 (`routes/web.php`) 已加上 middleware 保護。
-- [ ] 前端頁面/按鈕已使用 `usePermission` 進行顯示控制。

.agents/rules/framework.md

@@ -2,10 +2,6 @@
 trigger: always_on
 ---
 
----
-trigger: always_on
----
-
 # 開發框架規範說明書：ERP 系統 (star-erp)
 
 ## 1. 專案概述
@@ -50,15 +46,36 @@ trigger: always_on
     *   Routes: `kebab-case` (小寫橫線分隔)
 *   **回傳格式**： 所有的前後端溝通需維持一致的 JSON 結構，特別是驗證錯誤 (Validation Errors) 與閃存訊息 (Flash Messages)。
 
-## 6. AI 協作規則 (給 Antigravity AI)
+## 6. 嚴格模組化通訊規範 (Strict Modular Communication)
+為了確保系統的可維護性與獨立性，所有模組必須遵守以下「實體解耦」規範：
+
+*   **禁止跨模組 Eloquent 關聯**：禁止在 Model 中定義指向其他模組的 `belongsTo`, `hasMany` 等關聯。
+*   **介面化通訊 (Contracts)**：模組間的資料交換與功能調用必須透過 `app/Modules/{ModuleName}/Contracts/` 下定義的介面進行。
+*   **禁止跨模組 Model 引用**：Controller 與 Service 禁止 `use` 其他模組的 Model (除非是該模組自身的 Contracts)。
+*   **手動資料水和 (Manual Hydration)**：若頁面需要顯示跨模組資料（例：訂單顯示使用者名稱），Controller 應透過 Service 獲取基本資料，再手動組合成前端所需的 JSON/Props 結構。
+*   **資料一致性**：跨模組的資料操作應由各模組的 Service 處理其內部的 transaction 完整性。
+
+## 7. AI 協作規則 (給 Antigravity AI)
 *   **角色設定**： 你是一位專業的全端開發工程師助手。
 *   **代碼生成指令**：
     *   所有的解釋說明請使用 **繁體中文**。
     *   生成 React 組件時，必須符合專案現有的 Tailwind CSS 配置。
     *   必須考慮 ERP 邏輯（例如：權限判斷、操作日誌、資料完整性）。
     *   新增功能時，請先判斷應歸屬於哪個 Module，並建立在 `app/Modules/` 對應目錄下。
+*   **核心要求：UI 規範與彈性設計 (重要)**：
+    *   在開發「新功能」或「新頁面」前，產出的 `implementation_plan.md` 中**必須包含「UI 規範核對清單」**，明確列出將使用哪些已定義於 `ui-consistency/SKILL.md` 的元件（例如：`AlertDialog`、特定圖示名稱等）。
+    *   **已規範部分**：絕對遵循《客戶端後台 UI 統一規範》進行實作。
+    *   **未規範部分**：若遇到規範外的新 UI 區塊，請保有設計彈性，運用 Tailwind 打造符合 ERP 調性的初版設計，依據使用者的實際感受進行後續調整與收錄。
 
-## 7. 運行機制 (Docker / Sail)
+## 8. 多租戶開發規範 (Multi-tenancy Standards)
+本專案採用多租戶隔離架構，開發時必須遵守以下資料同步規則：
+*   **權限與選單同步**：新增 Permission 或修改系統設定時，必須確保中央資料庫 (Central) 與所有租戶資料庫 (Tenants) 均已同步。
+*   **指令執行**：
+    *   **Seeders**: 必須執行 `./vendor/bin/sail php artisan tenants:run db:seed` 以確保所有租戶均獲得更新。
+    *   **Tinker**: 檢查租戶資料時應使用 `./vendor/bin/sail php artisan tenants:run tinker`。
+    *   **Migrations**: 租戶相關的 Schema 異動應放在 `database/migrations/tenant/` 並執行 `./vendor/bin/sail artisan tenants:migrate`。
+
+## 9. 運行機制 (Docker / Sail)
 由於專案運行在 Docker 容器環境中，請勿直接在宿主機 (Host) 執行 php 或 composer 指令。請使用專案內建的 `sail` 指令：
 
 *   **啟動環境**： `./vendor/bin/sail up -d`
@@ -66,3 +83,18 @@ trigger: always_on
 *   **執行 Artisan 指令**： `./vendor/bin/sail artisan route:list`
 *   **執行 Composer**： `./vendor/bin/sail composer install`
 *   **執行 Node/NPM**： `./vendor/bin/sail npm run dev`
+
+## 10. 部署與查修環境 (CI/CD & Troubleshooting)
+*   **自動化部署**：本專案使用 CI/CD 自動化部署，開發者只需 push 程式碼至對應分支即可。
+*   **Demo 環境 (對應 `demo` 分支)**：若需查修測試站問題（例如查看 Error Log 或資料庫），請連線 `ssh gitea_work`。
+*   **Production 環境 (對應 `main` 分支)**：若需查修正式站問題，請連線 `ssh erp`。
+
+## 11. 瀏覽器測試規範 (Browser Testing)
+當需要進行瀏覽器自動化測試或手動驗證時，請遵守以下連線資訊：
+
+*   **本地測試網址**：`http://localhost:8081/`
+*   **預設管理員帳號**：`admin`
+*   **預設管理員密碼**：`password`
+
+> [!IMPORTANT]
+> 在執行 browser subagent 或進行 E2E 測試時，請務必確認為 `8081` Port，以避免連線至錯誤的服務環境。

.agents/rules/skill-trigger.md

@@ -0,0 +1,57 @@
+---
+trigger: always_on
+---
+
+# 技能觸發規範 (Skill Trigger Rules)
+
+本文件確保 AI 助手在對話中能**主動辨識**需要參照技能 (Skill) 的時機。
+Skills 位於 `.agents/skills/`，採漸進式揭露以節省 Token。
+**若對話內容命中以下任一觸發條件，必須先使用 `view_file` 讀取對應的 `SKILL.md` 後再進行作業。**
+
+---
+
+## 觸發對照表
+
+| 觸發詞 / 情境 | 對應 Skill | 路徑 |
+|---|---|---|
+| 操作紀錄、Activity Log、日誌、`tapActivity`、`LogsActivity`、`saveQuietly`、`activity()`、`items_diff` | **操作紀錄實作規範** | `.agents/skills/activity-logging/SKILL.md` |
+| 權限、permission、角色、role、`usePermission`、`<Can>`、`PermissionSeeder`、middleware protection | **權限管理與實作規範** | `.agents/skills/permission-management/SKILL.md` |
+| 跨模組、Service Interface、`Contracts`、模組間通訊、`ServiceProvider` 綁定、禁止跨模組引用 | **跨模組調用與通訊規範** | `.agents/skills/cross-module-communication/SKILL.md` |
+| 按鈕樣式、表格規範、圖標、分頁、Badge、Toast、表單、UI 統一、頁面佈局、`button-filled-*`、`button-outlined-*`、`lucide-react`、色彩系統 | **客戶端後台 UI 統一規範** | `.agents/skills/ui-consistency/SKILL.md` |
+| Git 分支、commit、push、合併、部署、`feature/`、`hotfix/`、`develop`、`main` | **Git 分支管理與開發規範** | `.agents/skills/git-workflows/SKILL.md` |
+| E2E、端到端測試、Playwright、`spec.ts`、功能驗證、自動化測試、回歸測試 | **E2E 端到端測試規範** | `.agents/skills/e2e-testing/SKILL.md` |
+| 查詢、撈資料、Query、Controller、下拉選單、Eloquent、N+1、`->get()`、select、交易、Transaction、Bulk、分頁、索引 | **資料庫與 ORM 最佳實踐規範** | `/home/mama/.gemini/antigravity/global_skills/database-best-practices/SKILL.md` |
+
+---
+
+## 強制觸發場景
+
+以下場景**無論對話中是否出現觸發詞**，都必須主動載入對應 Skill：
+
+### 🔴 新增功能或頁面時
+必須同時讀取：
+1. **permission-management** — 設定權限
+2. **ui-consistency** — 遵循 UI 規範
+3. **activity-logging** — 若涉及 Model CRUD，需加上操作紀錄
+4. **e2e-testing** — 確認是否需要新增對應的 E2E 測試
+
+### 🔴 新增或修改 Model 時
+必須讀取：
+1. **activity-logging** — `tapActivity` 實作
+2. **cross-module-communication** — 確認是否涉及跨模組引用
+
+### 🔴 Git 操作時
+必須讀取：
+1. **git-workflows** — 分支命名與 commit 格式
+
+### 🔴 新增或修改 API 與 Controller 撈取資料庫邏輯時
+必須讀取：
+1. **database-best-practices** — 確認查詢優化、交易安全、批量寫入與索引規範
+
+---
+
+## 注意事項
+
+> [!IMPORTANT]
+> 即使你「記得」Skill 的大致內容，仍必須重新讀取 `SKILL.md`。
+> 因為 Skill 文件可能已經更新，且記憶中的內容可能不完整。

.agents/skills/activity-logging/SKILL.md

@@ -0,0 +1,285 @@
+---
+name: 操作紀錄實作規範 (Activity Logging Skill)
+description: 規範系統內 Activity Log 的實作標準，包含自動名稱解析、複雜單據合併記錄、與前端顯示優化。
+---
+
+# 操作紀錄實作規範 (Activity Logging Skill)
+
+本技能定義了 Star ERP 系統中操作紀錄的最高實作標準，旨在確保每筆日誌都具有「高度可讀性」與「單一性」。
+
+---
+
+## 1. 啟用 Activity Log (Model 基本設定)
+
+在 Model 中引用 `LogsActivity` trait 並實作 `getActivitylogOptions` 方法。
+
+```php
+use Spatie\Activitylog\Traits\LogsActivity;
+use Spatie\Activitylog\LogOptions;
+
+class Product extends Model
+{
+    use LogsActivity;
+
+    public function getActivitylogOptions(): LogOptions
+    {
+        return LogOptions::defaults()
+            ->logAll()
+            ->logOnlyDirty() // ✅ 關鍵：只記錄有變動的欄位
+            ->dontSubmitEmptyLogs(); // 若無變動則不記錄
+    }
+}
+```
+
+---
+
+## 2. `tapActivity` 實作規範 (Backend 核心)
+
+### 2.1 型別宣告：統一使用 `Contracts\Activity`
+
+```php
+// ✅ 正確：使用介面
+public function tapActivity(\Spatie\Activitylog\Contracts\Activity $activity, string $eventName)
+
+// ❌ 禁止：使用具體類別
+public function tapActivity(\Spatie\Activitylog\Models\Activity $activity, string $eventName)
+```
+
+### 2.2 必須 `toArray()` 避免 Indirect modification error
+
+```php
+// 🚩 核心：轉換為陣列以避免 Indirect modification error
+$properties = $activity->properties instanceof \Illuminate\Support\Collection 
+    ? $activity->properties->toArray() 
+    : $activity->properties;
+
+// ... 操作 $properties ...
+
+$activity->properties = $properties; // 最後整體回寫
+```
+
+### 2.3 Snapshot 快照策略
+
+為確保資料被刪除後仍能辨識操作對象，**必須**在 `properties.snapshot` 中儲存關鍵識別資訊。
+
+```php
+$snapshot = $properties['snapshot'] ?? [];
+$snapshot['doc_no'] = $this->doc_no;       // 單號
+$snapshot['name'] = $this->name;           // 名稱
+$snapshot['warehouse_name'] = $this->warehouse?->name;  // 關聯名稱
+$properties['snapshot'] = $snapshot;
+```
+
+### 2.4 全域 ID 轉名稱邏輯 (ID Resolution)
+
+所有的 ID（如 `warehouse_id`, `created_by`）在記錄時應自動解析為名稱。
+
+#### 模組內 Model：可直接查詢
+
+```php
+$resolver = function (&$data) {
+    if (empty($data) || !is_array($data)) return;
+    
+    // 同模組內的 Model 可以直接查詢
+    foreach (['created_by', 'updated_by', 'completed_by'] as $f) {
+        if (isset($data[$f]) && is_numeric($data[$f])) {
+            $data[$f] = \App\Modules\Core\Models\User::find($data[$f])?->name;
+        }
+    }
+};
+```
+
+#### 跨模組 Model：必須透過 Service Interface
+
+> [!IMPORTANT]
+> 依據跨模組通訊規範，若需解析其他模組的 ID（例如在 `Procurement` 模組中解析 `warehouse_id`），
+> **禁止**直接 `Warehouse::find()`，必須透過 Service Interface。
+
+```php
+// ✅ 正確：透過 Service Interface 取得跨模組資料
+if (isset($data['warehouse_id']) && is_numeric($data['warehouse_id'])) {
+    $warehouse = app(\App\Modules\Inventory\Contracts\InventoryServiceInterface::class)
+        ->getWarehouse($data['warehouse_id']);
+    $data['warehouse_id'] = $warehouse?->name ?? $data['warehouse_id'];
+}
+```
+
+> [!NOTE]
+> `Core` 模組的 `User`, `Role`, `Tenant` 屬於全域例外，其他模組可直接查詢。
+> 詳見 [跨模組通訊規範](file:///home/mama/projects/star-erp/.agents/skills/cross-module-communication/SKILL.md)。
+
+### 2.5 完整 `tapActivity` 範例（參考 PurchaseOrder）
+
+```php
+public function tapActivity(\Spatie\Activitylog\Contracts\Activity $activity, string $eventName)
+{
+    // 🚩 轉換為陣列
+    $properties = $activity->properties instanceof \Illuminate\Support\Collection
+        ? $activity->properties->toArray()
+        : $activity->properties;
+
+    // 1. Snapshot 快照
+    $snapshot = $properties['snapshot'] ?? [];
+    $snapshot['po_number'] = $this->code;
+    $snapshot['vendor_name'] = $this->vendor?->name;
+    $properties['snapshot'] = $snapshot;
+
+    // 2. ID 轉名稱
+    $resolver = function (&$data) {
+        if (empty($data) || !is_array($data)) return;
+
+        // 全域例外：User 可直接查
+        foreach (['user_id', 'created_by', 'updated_by'] as $f) {
+            if (isset($data[$f]) && is_numeric($data[$f])) {
+                $data[$f] = \App\Modules\Core\Models\User::find($data[$f])?->name ?? $data[$f];
+            }
+        }
+        // 同模組：可直接查
+        if (isset($data['vendor_id']) && is_numeric($data['vendor_id'])) {
+            $data['vendor_id'] = Vendor::find($data['vendor_id'])?->name ?? $data['vendor_id'];
+        }
+        // 跨模組：必須透過 Service Interface
+        if (isset($data['warehouse_id']) && is_numeric($data['warehouse_id'])) {
+            $warehouse = app(\App\Modules\Inventory\Contracts\InventoryServiceInterface::class)
+                ->getWarehouse($data['warehouse_id']);
+            $data['warehouse_id'] = $warehouse?->name ?? $data['warehouse_id'];
+        }
+    };
+
+    if (isset($properties['attributes'])) $resolver($properties['attributes']);
+    if (isset($properties['old'])) $resolver($properties['old']);
+
+    // 3. 合併 activityProperties (手動傳入的 items_diff 等)
+    if (!empty($this->activityProperties)) {
+        $properties = array_merge($properties, $this->activityProperties);
+    }
+
+    $activity->properties = $properties;
+}
+```
+
+---
+
+## 3. 複雜操作的日誌合併 (Log Consolidation)
+
+當一個操作同時涉及「多個品項異動」與「單據狀態變更」時，**嚴禁**產生多筆重複日誌。
+
+### 3.1 手動記錄必須自行過濾差異
+
+```php
+// ✅ 正確：自行比對差異，只存變動值
+$changedAttributes = [];
+$changedOldAttributes = [];
+
+foreach ($newAttributes as $key => $value) {
+    if ($value != ($oldAttributes[$key] ?? null)) {
+        $changedAttributes[$key] = $value;
+        $changedOldAttributes[$key] = $oldAttributes[$key] ?? null;
+    }
+}
+
+if (!empty($changedAttributes)) {
+    activity()
+        ->withProperties(['attributes' => $changedAttributes, 'old' => $changedOldAttributes])
+        ->log('updated');
+}
+```
+
+### 3.2 `saveQuietly()` + 手動日誌 合併策略
+
+```php
+DB::transaction(function () use ($doc, $items) {
+    // 1. 更新品項 (記錄變動細節)
+    $updatedItems = $this->getUpdatedItems($doc, $items); 
+
+    // 2. 靜默更新單據狀態 (避免 Trait 產生冗餘日誌)
+    $doc->status = 'completed';
+    $doc->saveQuietly(); 
+
+    // 3. 手動觸發單一合併日誌
+    activity()
+        ->performedOn($doc)
+        ->withProperties([
+            'items_diff' => ['updated' => $updatedItems],
+            'attributes' => ['status' => 'completed'],
+            'old' => ['status' => 'counting']
+        ])
+        ->log('updated');
+});
+```
+
+> [!WARNING]
+> 使用 `saveQuietly()` 會繞過 Model Events（如自動單號產生）。
+> 若 Model 有 `creating`/`updating` 事件產生單號，需在 Service 中手動處理。
+
+---
+
+## 4. 後端 Controller 映射 (Subject Map)
+
+新增 Model 時，必須同步在 `ActivityLogController::getSubjectMap()` 加入中文映射。
+
+**位置**: `app/Modules/Core/Controllers/ActivityLogController.php`
+
+```php
+private function getSubjectMap()
+{
+    return [
+        'App\Modules\Inventory\Models\Product' => '商品',
+        'App\Modules\Finance\Models\UtilityFee' => '公共事業費',
+        // ... 新增此行
+    ];
+}
+```
+
+---
+
+## 5. 前端介面規範 (Frontend)
+
+### 5.1 標籤命名規範 (Field Labels)
+
+前端顯示應完全移除「ID」字眼，提供最友善的閱讀體驗。
+
+**位置**: `resources/js/Components/ActivityLog/ActivityDetailDialog.tsx`
+
+```typescript
+const fieldLabels: Record<string, string> = {
+    warehouse_id: '倉庫',     // ❌ 禁用「倉庫 ID」
+    created_by: '建立者',     // ❌ 禁用「建立者 ID」
+    completed_by: '完成者',
+    status: '狀態',
+    // 新增 Model 的欄位翻譯 ...
+};
+```
+
+### 5.2 `nameParams` 必須在兩處同步更新
+
+> [!IMPORTANT]
+> `nameParams` 在 `LogTable.tsx` 和 `ActivityDetailDialog.tsx` 中各有一份，
+> 新增時**必須兩處同步更新**，否則會導致列表與詳情頁顯示不一致。
+
+| 檔案 | 用途 |
+|---|---|
+| `resources/js/Components/ActivityLog/LogTable.tsx` | 列表頁的描述文字 |
+| `resources/js/Components/ActivityLog/ActivityDetailDialog.tsx` | 對話框標題 |
+
+### 5.3 特殊結構顯示
+
+*   **品項異動**：前端已能渲染 `items_diff` 結構，以「品項名稱 + 數值變動」方式呈現表格。
+*   **顯示過濾邏輯**（已內建於 `ActivityDetailDialog`）：
+    - **Created**: 顯示初始化欄位
+    - **Updated**: 僅顯示有變動的欄位 (`isChanged` 判斷)
+    - **Deleted**: 顯示刪除前的完整資料
+
+---
+
+## 6. 開發檢核清單 (Checklist)
+
+- [ ] **Model**: 是否已設定 `logOnlyDirty` + `dontSubmitEmptyLogs`？
+- [ ] **Model**: `tapActivity` 型別是否使用 `Contracts\Activity`？
+- [ ] **Model**: `tapActivity` 是否已使用 `toArray()` 處理 Collection？
+- [ ] **Model**: 是否已實作 Snapshot（關鍵識別資訊）？
+- [ ] **Model**: ID 轉名稱是否遵守跨模組規範（Core 例外，其餘需透過 Interface）？
+- [ ] **Service**: 是否使用 `saveQuietly()` 搭配手動 `activity()` 避免重複日誌？
+- [ ] **Controller**: `ActivityLogController::getSubjectMap()` 是否已新增 Model 中文映射？
+- [ ] **UI**: `fieldLabels` 是否已新增欄位中文翻譯？
+- [ ] **UI**: `nameParams` 是否已在 `LogTable` 和 `ActivityDetailDialog` 兩處同步？

.agents/skills/cross-module-communication/SKILL.md

@@ -0,0 +1,137 @@
+---
+name: 跨模組調用與通訊規範 (Cross-Module Communication)
+description: 規範 Laravel Modular Monolith 架構下，不同業務模組中如何彼此調用資料與邏輯，包含禁止項目、Interface 實作、與 Service 綁定規則。
+---
+
+# 跨模組調用與通訊規範 (Cross-Module Communication)
+
+為了確保專案的「模組化單體架構 (Modular Monolith)」的獨立性與可維護性，當遇到**需要跨越不同業務模組存取資料或調用功能**的情境時，請嚴格遵守以下規範。
+
+## 🚫 絕對禁止的行為 (Strict Prohibitions)
+
+*   **禁止跨模組 Eloquent 關聯（例外除外）**
+*   **禁止跨模組直接引入 (use) Model**
+*   **禁止跨模組直接實例化 (new) Service**
+
+---
+
+## 🌟 允許的全域例外 (Global Exceptions)
+
+雖然我們嚴格禁止跨模組直接相依，但為了開發效率與框架機制的完整性，**`Core` 模組下的特定基礎設施模型 (Infrastructure Models) 被視為全域例外**。
+
+其他業務模組 **可以** 透過 Eloquent (`belongsTo` / `hasMany`) 直接關聯以下 Model：
+1. **`App\Modules\Core\Models\User`**
+2. **`App\Modules\Core\Models\Role`**
+3. **`App\Modules\Core\Models\Tenant`**
+
+> **⚠️ 注意**：這項例外是單向的。`Core` 模組內的業務邏輯（如 `DashboardController`）**絕對不能**反過來直接 `use` 外部業務模組的 Model，仍必須透過外部模組的 Service Interface 來索取資料。
+
+---
+
+## ✅ 正確的跨模組調用流程：合約與依賴反轉
+
+所有的跨模組資料交換與功能調用，必須透過**介面化通訊 (Contracts)** 進行。
+
+### Step 1: 在被調用的模組定義合約 (Interface)
+
+如果 `Inventory` 模組需要提供功能給外部使用，請在 `app/Modules/Inventory/Contracts/` 建立 Interface 檔案。
+
+```php
+namespace App\Modules\Inventory\Contracts;
+
+use Illuminate\Support\Collection;
+
+interface InventoryServiceInterface
+{
+    public function getActiveWarehouses(): Collection;
+}
+```
+
+### Step 2: 實作介面並在自己模組的 ServiceProvider 註冊
+
+由 `Inventory` 模組自己的 Service 來實作上述介面。
+
+```php
+namespace App\Modules\Inventory\Services;
+
+use App\Modules\Inventory\Contracts\InventoryServiceInterface;
+use App\Modules\Inventory\Models\Warehouse;
+use Illuminate\Support\Collection;
+
+class InventoryService implements InventoryServiceInterface
+{
+    public function getActiveWarehouses(): Collection
+    {
+        return Warehouse::where('is_active', true)
+            ->select(['id', 'name', 'code'])
+            ->get();
+    }
+}
+```
+
+然後進入 `app/Modules/Inventory/InventoryServiceProvider.php` 完成綁定：
+
+```php
+namespace App\Modules\Inventory;
+
+use Illuminate\Support\ServiceProvider;
+use App\Modules\Inventory\Contracts\InventoryServiceInterface;
+use App\Modules\Inventory\Services\InventoryService;
+
+class InventoryServiceProvider extends ServiceProvider
+{
+    public function register(): void
+    {
+        $this->app->bind(InventoryServiceInterface::class, InventoryService::class);
+    }
+}
+```
+
+### Step 3: 調用方透過依賴注入 (DI) 使用服務
+
+當 `Procurement` 模組需要取得倉庫資料時，必須透過**建構子注入**或**方法注入**取得 `InventoryServiceInterface`。
+
+```php
+namespace App\Modules\Procurement\Controllers;
+
+use App\Http\Controllers\Controller;
+use App\Modules\Inventory\Contracts\InventoryServiceInterface;
+use Inertia\Inertia;
+
+class PurchaseOrderController extends Controller
+{
+    public function __construct(
+        protected InventoryServiceInterface $inventoryService
+    ) {}
+
+    public function create()
+    {
+        $warehouses = $this->inventoryService->getActiveWarehouses();
+        
+        return Inertia::render('Procurement/PurchaseOrder/Create', [
+            'warehouses' => $warehouses
+        ]);
+    }
+}
+```
+
+---
+
+## ⚠️ 跨模組資料回傳的注意事項 (Data Hydration)
+
+*   **回傳純粹資料**：建議在 Service 中用 `with()` 載入好關聯，或者直接轉為原生的 Array 或有具體結構的 DTO，避免依賴 Lazy Loading。
+*   **手動組合 (Manual Hydration)**：若某個頁面需要合併兩個模組的資料，必須在 Controller 層級呼叫兩個不同的 Service Interface 後，手動合併。
+
+### 範例：手動合併資料
+```php
+// 正確示範：在各自模組取資料，並手動組裝
+$orders = $this->orderService->getOrders(); 
+$userIds = $orders->pluck('user_id')->unique()->toArray();
+$users = $this->coreUserService->getUsersByIds($userIds)->keyBy('id');
+
+$mergedData = $orders->map(function ($order) use ($users) {
+    // 將使用者資料手動附加上去
+    $order->user_name = $users->get($order->user_id)->name ?? 'Unknown';
+    return $order;
+});
+```

.agents/skills/e2e-testing/SKILL.md

@@ -0,0 +1,266 @@
+---
+name: E2E 端到端測試規範 (E2E Testing with Playwright)
+description: 規範 Playwright 端到端測試的撰寫慣例、目錄結構、共用工具與執行方式，確保所有 E2E 測試保持一致性與可維護性。
+---
+
+# E2E 端到端測試規範 (E2E Testing with Playwright)
+
+本技能定義了 Star ERP 系統中端到端 (E2E) 測試的實作標準，使用 Playwright 模擬真實使用者操作瀏覽器，驗證 UI 顯示與功能流程的正確性。
+
+---
+
+## 1. 專案結構
+
+### 1.1 目錄配置
+
+```
+star-erp/
+├── playwright.config.ts       # Playwright 設定檔
+├── e2e/                        # E2E 測試根目錄
+│   ├── helpers/                # 共用工具函式
+│   │   └── auth.ts             # 登入 helper
+│   ├── screenshots/            # 測試截圖存放
+│   ├── auth.spec.ts            # 認證相關測試（登入、登出）
+│   ├── inventory.spec.ts       # 庫存模組測試
+│   ├── products.spec.ts        # 商品模組測試
+│   └── {module}.spec.ts        # 依模組命名
+├── playwright-report/          # HTML 測試報告（自動產生，已 gitignore）
+└── test-results/               # 失敗截圖與錄影（自動產生，已 gitignore）
+```
+
+### 1.2 命名規範
+
+| 項目 | 規範 | 範例 |
+|---|---|---|
+| 測試檔案 | 小寫，依模組命名 `.spec.ts` | `inventory.spec.ts` |
+| 測試群組 | `test.describe('中文功能名稱')` | `test.describe('庫存查詢')` |
+| 測試案例 | 中文描述「**應**」開頭 | `test('應顯示庫存清單')` |
+| 截圖檔案 | `{module}-{scenario}.png` | `inventory-search-result.png` |
+
+---
+
+## 2. 設定檔 (playwright.config.ts)
+
+### 2.1 核心設定
+
+```typescript
+import { defineConfig, devices } from '@playwright/test';
+
+export default defineConfig({
+  testDir: './e2e',
+  fullyParallel: true,
+  forbidOnly: !!process.env.CI,
+  retries: process.env.CI ? 2 : 0,
+  workers: process.env.CI ? 1 : undefined,
+  reporter: 'html',
+  use: {
+    baseURL: 'http://localhost:8081',    // Sail 開發伺服器
+    screenshot: 'only-on-failure',       // 失敗時自動截圖
+    video: 'retain-on-failure',          // 失敗時保留錄影
+    trace: 'on-first-retry',            // 重試時收集 trace
+  },
+  projects: [
+    {
+      name: 'chromium',
+      use: { ...devices['Desktop Chrome'] },
+    },
+  ],
+});
+```
+
+### 2.2 重要注意事項
+
+> [!IMPORTANT]
+> `baseURL` 必須指向本機 Sail 開發伺服器（預設 `http://localhost:8081`）。
+> 確保測試前已執行 `./vendor/bin/sail up -d` 與 `./vendor/bin/sail npm run dev`。
+
+---
+
+## 3. 共用工具 (Helpers)
+
+### 3.1 登入 Helper
+
+位置：`e2e/helpers/auth.ts`
+
+```typescript
+import { Page } from '@playwright/test';
+
+/**
+ * 共用登入函式
+ * 使用測試帳號登入 ERP 系統
+ */
+export async function login(page: Page, username = 'mama', password = 'mama9453') {
+  await page.goto('/');
+  await page.fill('#username', username);
+  await page.fill('#password', password);
+  await page.getByRole('button', { name: '登入系統' }).click();
+  // 等待儀表板載入完成
+  await page.waitForSelector('text=系統概況', { timeout: 10000 });
+}
+```
+
+### 3.2 使用方式
+
+```typescript
+import { login } from './helpers/auth';
+
+test('應顯示庫存清單', async ({ page }) => {
+  await login(page);
+  await page.goto('/inventory/stock-query');
+  // ...斷言
+});
+```
+
+---
+
+## 4. 測試撰寫規範
+
+### 4.1 測試結構模板
+
+```typescript
+import { test, expect } from '@playwright/test';
+import { login } from './helpers/auth';
+
+test.describe('模組功能名稱', () => {
+
+  // 若整個 describe 都需要登入，使用 beforeEach
+  test.beforeEach(async ({ page }) => {
+    await login(page);
+  });
+
+  test('應正確顯示頁面標題與關鍵元素', async ({ page }) => {
+    await page.goto('/target-page');
+
+    // 驗證頁面標題
+    await expect(page.getByText('頁面標題')).toBeVisible();
+
+    // 驗證表格存在
+    await expect(page.locator('table')).toBeVisible();
+  });
+
+  test('應能執行 CRUD 操作', async ({ page }) => {
+    // ...
+  });
+});
+```
+
+### 4.2 斷言 (Assertions) 慣例
+
+| 場景 | 優先使用 | 避免使用 |
+|---|---|---|
+| 驗證頁面載入 | `page.getByText('關鍵文字')` | `page.waitForURL()` ※ |
+| 驗證元素存在 | `expect(locator).toBeVisible()` | `.count() > 0` |
+| 驗證表格資料 | `page.locator('table tbody tr')` | 硬編碼行數 |
+| 等待操作完成 | `expect().toBeVisible({ timeout })` | `page.waitForTimeout()` |
+
+> [!NOTE]
+> ※ Star ERP 使用 Inertia.js，頁面導航不一定改變 URL（例如儀表板路由為 `/`）。
+> 因此**優先使用頁面內容驗證**，而非依賴 URL 變化。
+
+### 4.3 選擇器優先順序
+
+依照 Playwright 官方建議，選擇器優先順序為：
+
+1. **Role** — `page.getByRole('button', { name: '登入系統' })`
+2. **Text** — `page.getByText('系統概況')`
+3. **Label** — `page.getByLabel('帳號')`
+4. **Placeholder** — `page.getByPlaceholder('請輸入...')`
+5. **Test ID** — `page.getByTestId('submit-btn')`（需在元件加 `data-testid`）
+6. **CSS** — `page.locator('#username')`（最後手段）
+
+### 4.4 禁止事項
+
+```typescript
+// ❌ 禁止：硬等待（不可預期的等待時間）
+await page.waitForTimeout(5000);
+
+// ✅ 正確：等待特定條件
+await expect(page.getByText('操作成功')).toBeVisible({ timeout: 5000 });
+
+// ❌ 禁止：在測試中寫死測試資料的 ID
+await page.goto('/products/42/edit');
+
+// ✅ 正確：從頁面互動導航
+await page.locator('table tbody tr').first().getByRole('button', { name: '編輯' }).click();
+```
+
+---
+
+## 5. 截圖與視覺回歸
+
+### 5.1 手動截圖（文件用途）
+
+```typescript
+// 成功截圖存於 e2e/screenshots/
+await page.screenshot({
+  path: 'e2e/screenshots/inventory-list.png',
+  fullPage: true,
+});
+```
+
+### 5.2 視覺回歸測試（偵測 UI 變化）
+
+```typescript
+test('庫存頁面 UI 應保持一致', async ({ page }) => {
+  await login(page);
+  await page.goto('/inventory/stock-query');
+  // 比對截圖，pixel 級差異會報錯
+  await expect(page).toHaveScreenshot('stock-query.png', {
+    maxDiffPixelRatio: 0.01,  // 容許 1% 差異（動態資料）
+  });
+});
+```
+
+> [!NOTE]
+> 首次執行 `toHaveScreenshot()` 會自動建立基準截圖。
+> 後續執行會與基準比對，更新基準用：`npx playwright test --update-snapshots`
+
+---
+
+## 6. 執行指令速查
+
+```bash
+# 執行所有 E2E 測試
+npx playwright test
+
+# 執行特定模組測試
+npx playwright test e2e/login.spec.ts
+
+# UI 互動模式（可視化瀏覽器操作）
+npx playwright test --ui
+
+# 帶頭模式（顯示瀏覽器畫面）
+npx playwright test --headed
+
+# 產生 HTML 報告並開啟
+npx playwright test --reporter=html
+npx playwright show-report
+
+# 更新視覺回歸基準截圖
+npx playwright test --update-snapshots
+
+# 只執行特定測試案例（用 -g 篩選名稱）
+npx playwright test -g "登入"
+
+# Debug 模式（逐步執行）
+npx playwright test --debug
+```
+
+---
+
+## 7. 開發檢核清單 (Checklist)
+
+### 新增頁面或功能時：
+
+- [ ] 是否已為新頁面建立對應的 `.spec.ts` 測試檔？
+- [ ] 測試是否覆蓋主要的 Happy Path（正常操作流程）？
+- [ ] 測試是否覆蓋關鍵的 Error Path（錯誤處理）？
+- [ ] 共用的登入步驟是否使用 `helpers/auth.ts`？
+- [ ] 斷言是否優先使用頁面內容而非 URL？
+- [ ] 選擇器是否遵循優先順序（Role > Text > Label > CSS）？
+- [ ] 測試是否可獨立執行（不依賴其他測試的狀態）？
+
+### 提交程式碼前：
+
+- [ ] 全部 E2E 測試是否通過？（`npx playwright test`）
+- [ ] 是否有遺留的 `test.only` 或 `test.skip`？

.agents/skills/git-workflows/SKILL.md

@@ -0,0 +1,51 @@
+---
+name: Git 分支管理與開發規範 (Git Workflow)
+description: 規範開發過程中的 Git 分支架構、合併限制、環境部署流程以及提交訊息格式。
+---
+
+# Git 分支管理與開發規範 (Git Workflow)
+
+為了確保系統穩定性與發布紀律，所有開發者與 AI 助手必須嚴格遵守以下環境發布流程與時段限制。
+
+## 1. 分支架構與環境定義
+
+| 分支 | 環境 | 用途描述 | 合併來源 |
+| :--- | :--- | :--- | :--- |
+| **`dev`** | 本機開發 | 日常開發與功能實作。 | `feature/*` |
+| **`demo`** | 測試/預佈署 | 鏡像生產環境。用於正式上線前的最終驗證。 | `dev` |
+| **`main`** | 生產環境 | 正式版本分支。僅存放透過 `demo` 驗證後的代碼。 | `demo` |
+
+## 2. 發布時段與約束 (Release Window)
+
+### Main 分支發布限制 (Mandatory)
+1.  **強制規範**：若執行推送/合併指令時未明確包含目標分支，**嚴禁** 自行預設或推論為 `main`。我必須先詢問使用者：「請問要推送到哪一個目標分支？(dev / demo / main)」。
+2.  **標準發布時間**：週一至週四，**12:00 (中午) 之前**。
+3.  **非標準時段提醒**：若於上述時段以外（週五、週末、國定假日或下班時間）欲合併至 `main`：
+    - AI 助手**必須攔截並主動提示風險**（例如：週末災難風險）。
+    - 必須取得使用者明確書面同意（如：「我確定現在要上線」）方可執行。
+4.  **合併鏈路**：一般功能/修正必須先上 `demo` 測試。`main` 的程式原則上應從 `demo` 分支合併而來。
+
+## 3. 開發與修復流程 (SOP)
+
+### 標準開發流程
+1. `feature/*` -> `dev` (隨時合併，主要測試點)。
+2. `dev` -> `demo` (隨時合併，進行類生產環境測試)。
+3. `demo` -> `main` (僅限允許時段進行，正式上線)。
+
+### 緊急修復流程 (Hotfix)
+1. 直接從 `main` 建立 `hotfix/*` 分支進行修復。
+2. 修復完成並通過測試後合併回 `main`。
+3. **重要同步**：修復後的程式碼必須立即合併回 `demo` 與 `dev`，確保各環境修復同步。
+
+## 4. 提交訊息規範 (Commit Messages)
+
+提交訊息必須包含以下前綴：
+- `[FIX]`：修復 Bug。
+- `[FEAT]`：新增功能。
+- `[DOCS]`：文件更新。
+- `[STYLE]`：UI/格式調整。
+- `[REFACTOR]`：重構。
+
+---
+> [!IMPORTANT]
+> 身為 AI 助手 (Antigravity)，我會監控合併對象與當前時間。若您的命令涉及合併至 `main` 且不在允許時段內，我會優先進行安全提醒。

.agents/skills/permission-management/SKILL.md

@@ -0,0 +1,206 @@
+---
+name: 權限管理與實作規範
+description: 為新功能實作權限控制的完整流程規範，包含後端 Seeder 設定、Middleware 路由保護與前端權限判斷。
+---
+
+# 權限管理與實作規範
+
+本文件說明如何在新增功能時，一併實作完整的權限控制機制。專案採用 `spatie/laravel-permission` 套件進行權限管理。
+
+---
+
+## 1. 定義權限 (Backend Seeder)
+
+所有權限皆定義於 `database/seeders/PermissionSeeder.php`。
+
+### 步驟：
+
+1.  開啟 `database/seeders/PermissionSeeder.php`。
+2.  在 `$permissions` 關聯陣列中新增功能對應的權限。
+    *   **命名慣例**：`{resource}.{action}`（例如：`system.view_logs`, `products.create`）
+    *   **格式**：`'權限字串' => '中文動作名稱'`
+    *   常用動作：`view`, `create`, `edit`, `delete`, `approve`, `cancel`, `export`
+3.  在下方「角色分配」區段，將新權限分配給適合的角色。
+
+### 範例：
+
+```php
+// 1. 新增權限（注意：是 key => value 格式）
+$permissions = [
+    // ... 現有權限
+    'utility_fees.view' => '檢視',
+    'utility_fees.create' => '建立',
+    'utility_fees.edit' => '編輯',
+    'utility_fees.delete' => '刪除',
+];
+
+// 2. 分配給角色
+$admin->givePermissionTo([
+    // ... 現有權限
+    'utility_fees.view', 'utility_fees.create', 'utility_fees.edit', 'utility_fees.delete',
+]);
+```
+
+### 現有角色定義：
+
+| 角色 | 說明 | 權限範圍 |
+|---|---|---|
+| `super-admin` | 系統管理員 | 自動擁有所有權限（`Permission::all()`） |
+| `admin` | 一般管理員 | 大部分權限（除角色管理外） |
+| `warehouse-manager` | 倉庫管理員 | 庫存、盤點、調撥、進貨、門市叫貨 |
+| `purchaser` | 採購人員 | 商品檢視、採購單、退貨、供應商、進貨 |
+| `viewer` | 檢視人員 | 僅限各模組的 `.view` 權限 |
+
+---
+
+## 2. 套用資料庫變更 (Multi-tenancy)
+
+修改 Seeder 後，必須在**中央與所有租戶**同步執行。
+
+```bash
+# 對所有租戶執行 Seeder
+./vendor/bin/sail php artisan tenants:seed --class=PermissionSeeder
+```
+
+> [!WARNING]
+> 僅執行 `db:seed` 只會更新中央資料庫。務必使用 `tenants:seed` 確保所有租戶同步。
+
+---
+
+## 3. 路由保護 (Backend Middleware)
+
+路由保護定義在各模組自己的 `app/Modules/{ModuleName}/Routes/web.php` 中。
+
+> [!IMPORTANT]
+> 路由檔在各模組內（如 `app/Modules/Finance/Routes/web.php`），**不是**全域的 `routes/web.php`。
+
+### 範例：
+
+```php
+// 單一權限保護
+Route::middleware('permission:utility_fees.view')->group(function () {
+    Route::get('/utility-fees', [UtilityFeeController::class, 'index'])->name('utility-fees.index');
+    Route::get('/utility-fees/{utilityFee}', [UtilityFeeController::class, 'show'])->name('utility-fees.show');
+});
+
+// 巢狀權限群組
+Route::middleware('permission:utility_fees.create')->group(function () {
+    Route::get('/utility-fees/create', [UtilityFeeController::class, 'create'])->name('utility-fees.create');
+    Route::post('/utility-fees', [UtilityFeeController::class, 'store'])->name('utility-fees.store');
+});
+
+// 單行 middleware
+Route::delete('/utility-fees/{utilityFee}', [UtilityFeeController::class, 'destroy'])
+    ->middleware('permission:utility_fees.delete')
+    ->name('utility-fees.destroy');
+```
+
+---
+
+## 4. 配置權限群組名稱 (Backend UI Config)
+
+為了讓新權限在「角色與權限」管理介面中正確分組並顯示中文標題，需修改 Controller。
+
+**位置**: `app/Modules/Core/Controllers/RoleController.php` → `getGroupedPermissions()`
+
+```php
+$groupDefinitions = [
+    'products' => '商品資料管理',
+    'warehouses' => '倉庫管理',
+    'inventory' => '庫存資料管理',
+    // ...
+    'utility_fees' => '公共事業費管理', // ✅ 新增此行
+];
+```
+
+> [!NOTE]
+> 未加入 `$groupDefinitions` 的權限群組仍會顯示，但標題會以原始 key（英文）呈現。
+
+---
+
+## 5. 前端權限判斷 (React)
+
+### 5.1 方式一：`usePermission` Hook（在邏輯中判斷）
+
+**位置**: `resources/js/hooks/usePermission.ts`
+
+```tsx
+import { usePermission } from "@/hooks/usePermission";
+
+export default function ProductIndex() {
+    const { can, canAny, isSuperAdmin } = usePermission();
+
+    return (
+        <div>
+            {can('products.create') && <Button>新增商品</Button>}
+            {canAny(['products.edit', 'products.delete']) && <ManageDropdown />}
+        </div>
+    );
+}
+```
+
+#### Hook 完整介面：
+
+| 方法 | 說明 |
+|---|---|
+| `can(permission)` | 檢查是否擁有**指定**權限 |
+| `canAny(permissions[])` | 檢查是否擁有**任一**權限 |
+| `canAll(permissions[])` | 檢查是否擁有**所有**權限 |
+| `hasRole(role)` | 檢查是否擁有**指定**角色 |
+| `hasAnyRole(roles[])` | 檢查是否擁有**任一**角色 |
+| `hasAllRoles(roles[])` | 檢查是否擁有**所有**角色 |
+| `isSuperAdmin()` | 是否為超級管理員 |
+
+> 所有方法對 `super-admin` 角色自動回傳 `true`。
+
+### 5.2 方式二：`<Can>` / `<HasRole>` / `<CanAll>` 元件（在 JSX 中包裹）
+
+**位置**: `resources/js/Components/Permission/Can.tsx`
+
+```tsx
+import { Can, HasRole, CanAll } from '@/Components/Permission/Can';
+
+// 單一權限
+<Can permission="products.create">
+    <Button>新增商品</Button>
+</Can>
+
+// 任一權限（OR 邏輯）
+<Can permission={['products.edit', 'products.delete']}>
+    <ManageDropdown />
+</Can>
+
+// 所有權限都必須有（AND 邏輯）
+<CanAll permissions={['products.edit', 'products.delete']}>
+    <Button>完整管理</Button>
+</CanAll>
+
+// 角色判斷
+<HasRole role="admin">
+    <Link href="/admin">管理後台</Link>
+</HasRole>
+
+// Fallback 支援
+<Can permission="products.delete" fallback={<span className="text-gray-400">無權限</span>}>
+    <Button variant="destructive">刪除</Button>
+</Can>
+```
+
+> [!IMPORTANT]
+> UI 規範要求：所有可操作按鈕（新增、編輯、刪除）**必須**包裹 `<Can>` 元件或使用 `can()` 判斷。
+> 詳見 [UI 統一規範](file:///home/mama/projects/star-erp/.agents/skills/ui-consistency/SKILL.md)。
+
+---
+
+## 6. 開發檢核清單 (Checklist)
+
+### 後端
+- [ ] `PermissionSeeder.php` 已新增權限字串（`'key' => '中文動作名稱'` 格式）。
+- [ ] `PermissionSeeder.php` 已將新權限分配給 `admin` 及其他適用角色。
+- [ ] 已執行 `./vendor/bin/sail php artisan tenants:seed --class=PermissionSeeder` 同步所有租戶。
+- [ ] `RoleController.php` 的 `$groupDefinitions` 已新增權限群組中文名稱。
+- [ ] 模組路由 (`app/Modules/{ModuleName}/Routes/web.php`) 已加上 `middleware('permission:...')` 保護。
+
+### 前端
+- [ ] 頁面按鈕已使用 `usePermission` Hook 或 `<Can>` 元件進行權限控制。
+- [ ] 所有可操作按鈕都包裹於權限判斷中（符合 UI 統一規範）。

.agents/skills/ui-consistency/SKILL.md

@@ -80,7 +80,7 @@ tooltip
 <div style={{ borderColor: 'var(--primary-main)' }}>...</div>
 
 // ❌ 錯誤：寫死色碼 (會導致租戶無法換色)
-<div className="text-[#01ab83]">...</div>
+<div className="text-primary-main">...</div>
 ```
 
 ### 2.2 灰階 (Grey Scale)
@@ -123,8 +123,8 @@ tooltip
 // ✅ 成功操作
 <Button className="button-filled-success">確認</Button>
 
-// ✅ 資訊操作
-<Button className="button-filled-info">查看詳情</Button>
+// ✅ 資訊操作（用於系統提示、說明等非業務主流程）
+<Button className="button-filled-info">系統資訊</Button>
 
 // ✅ 警告操作
 <Button className="button-filled-warning">警告</Button>
@@ -177,6 +177,23 @@ tooltip
 </Can>
 ```
 
+#### 表格操作列檢視按鈕
+
+```tsx
+<Can permission="resource.view">
+  <Link href={route('resource.show', item.id)}>
+    <Button
+      variant="outline"
+      size="sm"
+      className="button-outlined-primary"
+      title="檢視"
+    >
+      <Eye className="h-4 w-4" />
+    </Button>
+  </Link>
+</Can>
+```
+
 #### 表格操作列編輯按鈕
 
 ```tsx
@@ -230,6 +247,30 @@ tooltip
 </Can>
 ```
 
+### 3.4 返回按鈕規範
+
+詳情頁面（如：查看庫存、進貨單詳情）的返回按鈕應統一放置於 **頁面標題上方**，並採用「**圖標 + 文字**」的 Outlined 樣式。
+
+**樣式規格**：
+- **位置**：標題區域上方 (`mb-6`)，獨立於標題列
+- **樣式**：`variant="outline"` + `className="gap-2 button-outlined-primary"`
+- **圖標**：`<ArrowLeft className="h-4 w-4" />`
+- **文字**：清楚說明返回目的地，例如「返回倉庫管理」、「返回列表」
+
+```tsx
+<div className="mb-6">
+  <Link href={route('resource.index')}>
+    <Button
+      variant="outline"
+      className="gap-2 button-outlined-primary"
+    >
+      <ArrowLeft className="h-4 w-4" />
+      返回列表
+    </Button>
+  </Link>
+</div>
+```
+
 ---
 
 ## 4. 圖標規範
@@ -278,7 +319,7 @@ import { Plus, Pencil, Trash2, Users } from 'lucide-react';
 
 // 頁面標題
 <h1 className="text-2xl font-bold text-grey-0 flex items-center gap-2">
-  <Users className="h-6 w-6 text-[#01ab83]" />
+  <Users className="h-6 w-6 text-primary-main" />
   使用者管理
 </h1>
 
@@ -543,7 +584,7 @@ export default function ResourceIndex() {
 <div className="flex items-center justify-between mb-6">
   <div>
     <h1 className="text-2xl font-bold text-grey-0 flex items-center gap-2">
-      <IconComponent className="h-6 w-6 text-[#01ab83]" />
+      <IconComponent className="h-6 w-6 text-primary-main" />
       頁面標題
     </h1>
     <p className="text-gray-500 mt-1">
@@ -740,7 +781,75 @@ import { SearchableSelect } from "@/Components/ui/searchable-select";
 - **Select / SearchableSelect**: 必須確保 Trigger 按鈕高度為 `h-9`
 - **禁止使用**: 除非有特殊設計需求，否則避免使用 `h-10` (40px) 或其他非標準高度。
 
-## 11.6 日期輸入框樣式 (Date Input Style)
+## 11.6 數字輸入框規範 (Numeric Inputs)
+
+當需求為輸入**整數**數量（例如：實際產出數量、標準產出量）時，**嚴禁自行開發組合 `Plus` (+) 與 `Minus` (-) 按鈕的複合元件**。
+
+**必須使用原生 HTML5 數字輸入與屬性**：
+1.  使用 `<Input type="number" />` 確保預設渲染瀏覽器原生的上下調整小箭頭 (Spinner)。
+2.  針對整數需求，固定加上 `step="1"` 屬性。
+3.  視需求加上 `min` 與 `max` 控制上下限。
+
+這樣既能保持與現有「新增配方」等模組的「標準產出量」欄位行為高度一致，亦能維持畫面的極簡風格。
+
+```tsx
+// ✅ 正確：依賴原生行為
+<Input
+    type="number"
+    step="1"
+    min="0"
+    max={outputQuantity}
+    value={actualOutputQuantity}
+    onChange={(e) => setActualOutputQuantity(e.target.value)}
+    className="h-9 w-24 text-center"
+/>
+
+// ❌ 錯誤：過度設計、浪費空間與破壞一致性
+<div className="flex">
+    <Button><Minus /></Button>
+    <Input type="number" />
+    <Button><Plus /></Button>
+</div>
+```
+
+## 11.7 日期顯示規範 (Date Display)
+
+前端顯示日期時**禁止直接顯示原始 ISO 字串**（如 `2024-03-06T08:30:00.000000Z`），必須使用 `resources/js/lib/date.ts` 提供的工具函式。
+
+### 可用函式
+
+| 函式 | 說明 | 輸出範例 |
+|---|---|---|
+| `formatDate(dateStr)` | **智慧格式**：自動判斷是否包含時間 | `2024-03-06` 或 `2024-03-06 08:30:00` |
+| `formatDate(dateStr, 'yyyy-MM-dd')` | 指定格式輸出 | `2024-03-06` |
+| `formatDateOnly(dateStr)` | 強制僅顯示日期 | `2024-03-06` |
+
+### 智慧格式切換邏輯
+
+`formatDate` 會自動判斷原始資料：
+- 若時間部分為 `00:00:00`（通常代表後端僅提供日期）→ 僅顯示 `YYYY-MM-DD`
+- 若時間部分有值 → 顯示 `YYYY-MM-DD HH:mm:ss`
+- 若輸入為 `null` / `undefined` / 無效字串 → 顯示 `"-"`
+
+### 使用範例
+
+```tsx
+import { formatDate, formatDateOnly } from "@/lib/date";
+
+// ✅ 正確：使用 formatDate 自動判斷
+<span>{formatDate(item.created_at)}</span>       // → "2024-03-06 08:30:00"
+<span>{formatDate(item.transaction_date)}</span>  // → "2024-03-06"（因為時間為 00:00:00）
+
+// ✅ 正確：強制只顯示日期
+<span>{formatDateOnly(item.due_date)}</span>      // → "2024-03-06"
+
+// ❌ 禁止：直接顯示原始 ISO 字串
+<span>{item.created_at}</span>  // → "2024-03-06T08:30:00.000000Z" 😱
+```
+
+---
+
+## 11.7 日期輸入框樣式 (Date Input Style)
 
 日期輸入框應採用「**左側裝飾圖示 + 右側原生操作**」的配置，以保持視覺一致性並保留瀏覽器原生便利性。
 
@@ -764,7 +873,7 @@ import { Input } from "@/Components/ui/input";
 </div>
 ```
 
-## 11.7 搜尋選單樣式 (SearchableSelect Style)
+## 11.8 搜尋選單樣式 (SearchableSelect Style)
 
 `SearchableSelect` 元件在表單或篩選列中使用時，高度必須設定為 `h-9` 以與輸入框對齊。
 
@@ -775,7 +884,7 @@ import { Input } from "@/Components/ui/input";
 />
 ```
 
-## 11.8 篩選列規範 (Filter Bar Norms)
+## 11.9 篩選列規範 (Filter Bar Norms)
 
 列表頁面的篩選區域（Filter Bar）應遵循以下規範以節省空間並保持層級清晰：
 

.agents/workflows/now-push.md

@@ -0,0 +1,35 @@
+---
+description: 將目前的變更提交並推送至指定的遠端分支 (遵守專案規範)
+---
+
+# 快速推送工作流 (now-push)
+
+本工作流旨在規範化 Git 提交與推送流程，確保符合專案的開發規範 (繁體中文、規範前綴) 與發布紀律 (Release Window)。
+
+## 執行步驟
+
+1. **讀取規範 (Mandatory)**
+   在執行任何 Git 操作前，**必須** 先讀取 Git 分支管理與開發規範：
+   `view_file` -> [Git SKILL.md](file:///home/mama/projects/star-erp/.agents/skills/git-workflows/SKILL.md)
+
+2. **檢查與準備**
+   - 執行 `git status` 檢查目前工作目錄。
+   - 根據 **SKILL.md** 的規範撰寫繁體中文提交訊息。
+
+3. **目標分支安全檢查**
+   - 嚴格遵守 **SKILL.md** 中的「分支架構」、「發布時段」與「強制分支明確指定」規則。
+   - 若未指明目標分支，主動詢問使用者，不可私自預設為 `main`。
+   - **【最嚴格限制】**：`main` 分支的程式碼**只能**, **必須**從 `demo` 分支合併而來。絕對禁止將 `dev` (或 `feature/*`) 直接合併進 `main`。
+
+4. **執行推送 (Push) 與嚴格合併鏈路**
+   - **若目標為 `dev`**：直接 `git push origin [目前分支]:dev` 或 commit 後 merge 到 dev。
+   - **若目標為 `demo`**：必須先確保變更已在 `dev` 且無衝突，然後 `git checkout demo && git merge dev && git push origin demo`。
+   - **若目標為 `main`**：
+     必須確保變更已經依照順序通過前置環境，嚴格執行以下流程（缺一不可）：
+     1. `git checkout dev && git merge [目前分支] && git push origin dev`
+     2. `git checkout demo && git merge dev && git push origin demo`
+     3. `git checkout main && git merge demo && git push origin main`
+     *(就算遭遇衝突，也必須在對應的分支上解衝突，絕對不可略過 `demo` 直接 `dev -> main`)*
+
+5. **後續同步 (針對 Hotfix)**
+   - 依照 **SKILL.md** 的「緊急修復流程(Hotfix)」：若有從 main 開出來的 hotfix 分支直接併回 main 的例外情況（需使用者明確指示），**必須**同步將 main 分支 merge 回 `demo` 與 `dev` 分支，維持全環境版本一致。

.env.example

@@ -4,6 +4,7 @@ APP_ENV=local
 APP_KEY=
 APP_DEBUG=true
 APP_URL=http://localhost
+APP_VERSION=v1.0.0
 
 # Multi-tenancy 設定 (用逗號分隔多個中央網域)
 CENTRAL_DOMAINS=localhost,127.0.0.1
@@ -43,7 +44,7 @@ BROADCAST_CONNECTION=log
 FILESYSTEM_DISK=local
 QUEUE_CONNECTION=database
 
-CACHE_STORE=database
+CACHE_STORE=redis
 # CACHE_PREFIX=
 
 MEMCACHED_HOST=127.0.0.1

.gitea/workflows/deploy-demo.yaml

@@ -0,0 +1,101 @@
+name: ERP-Deploy-Demo
+
+on:
+  push:
+    branches:
+      - demo
+
+jobs:
+  deploy-demo:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout Code
+        uses: actions/checkout@v3
+        with:
+          github-server-url: https://gitea.taiwan-star.com.tw
+          repository: ${{ github.repository }}
+
+      - name: Step 1 - Push Code to Demo
+        run: |
+          apt-get update && apt-get install -y rsync openssh-client
+          mkdir -p ~/.ssh
+          echo "${{ secrets.DEMO_SSH_KEY }}" > ~/.ssh/id_rsa_demo
+          chmod 600 ~/.ssh/id_rsa_demo
+          rsync -avz --delete \
+            --exclude='.git' \
+            --exclude='node_modules' \
+            --exclude='vendor' \
+            --exclude='storage' \
+            --exclude='.env' \
+            --exclude='public/build' \
+            -e "ssh -p 2227 -i ~/.ssh/id_rsa_demo -o StrictHostKeyChecking=no" \
+            ./ root@220.132.7.82:/var/www/star-erp-demo/
+          rm ~/.ssh/id_rsa_demo
+
+      - name: Step 2 - Check if Rebuild Needed
+        id: check_rebuild
+        uses: appleboy/ssh-action@master
+        with:
+          host: 220.132.7.82
+          port: 2227
+          username: root
+          key: ${{ secrets.DEMO_SSH_KEY }}
+          script: |
+            cd /var/www/star-erp-demo
+            if git diff --name-only HEAD~1 HEAD 2>/dev/null | grep -qE '(Dockerfile|compose\.yaml|docker-compose\.yaml)'; then
+              echo "REBUILD_NEEDED=true"
+            else
+              echo "REBUILD_NEEDED=false"
+            fi
+
+      - name: Step 3 - Container Up & Health Check
+        uses: appleboy/ssh-action@master
+        with:
+          host: 220.132.7.82
+          port: 2227
+          username: root
+          key: ${{ secrets.DEMO_SSH_KEY }}
+          script: |
+            cd /var/www/star-erp-demo
+            chown -R 1000:1000 .
+            
+            if git diff --name-only HEAD~1 HEAD 2>/dev/null | grep -qE '(Dockerfile|compose\.yaml|compose\.demo\.yaml|docker-compose\.yaml)'; then
+              echo "🔄 偵測到 Docker 相關檔案變更，執行完整重建..."
+              WWWGROUP=1000 WWWUSER=1000 docker compose -f compose.yaml -f compose.demo.yaml up -d --build --wait
+            else
+              echo "⚡ 無 Docker 檔案變更，僅重載服務..."
+              if ! docker ps --format '{{.Names}}' | grep -q 'star-erp-laravel'; then
+                echo "容器未運行，正在啟動..."
+                WWWGROUP=1000 WWWUSER=1000 docker compose -f compose.yaml -f compose.demo.yaml up -d --wait
+              else
+                echo "容器已運行，跳過 docker compose，直接進行程式碼部署..."
+              fi
+            fi
+            
+            echo "容器狀態：" && docker ps --filter "name=star-erp-laravel"
+
+      - name: Step 4 - Composer & NPM Build
+        uses: appleboy/ssh-action@master
+        with:
+          host: 220.132.7.82
+          port: 2227
+          username: root
+          key: ${{ secrets.DEMO_SSH_KEY }}
+          script: |
+           docker exec -u 1000:1000 -w /var/www/html star-erp-laravel sh -c "
+            composer install --no-dev --optimize-autoloader --no-interaction &&
+            npm install &&
+            npm run build &&
+            rm -f public/hot &&
+            php artisan storage:link &&
+            php artisan migrate --force &&
+            php artisan tenants:migrate --force &&
+            php artisan db:seed --force &&
+            php artisan tenants:run db:seed --option=\"class=PermissionSeeder\" --option=\"force=true\" &&
+            php artisan tenants:run db:seed --option=\"class=SystemSettingSeeder\" --option=\"force=true\" &&
+            php artisan permission:cache-reset &&
+            php artisan optimize:clear &&
+            php artisan optimize &&
+            php artisan view:cache
+           "
+           docker exec star-erp-laravel chmod -R 775 /var/www/html/storage /var/www/html/bootstrap/cache

.gitea/workflows/deploy-prod.yaml

@@ -0,0 +1,94 @@
+name: ERP-Deploy-Production
+
+on:
+  push:
+    branches:
+      - main
+
+jobs:
+  deploy-production:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout Code
+        uses: actions/checkout@v3
+        with:
+          repository: ${{ github.repository }}
+
+      - name: Step 1 - Push Code to Production
+        run: |
+          apt-get update && apt-get install -y rsync openssh-client
+          mkdir -p ~/.ssh
+          echo "${{ secrets.PROD_SSH_KEY }}" > ~/.ssh/id_rsa_prod
+          chmod 600 ~/.ssh/id_rsa_prod
+          rsync -avz --delete \
+            --exclude='.git' \
+            --exclude='.env' \
+            --exclude='node_modules' \
+            --exclude='vendor' \
+            --exclude='storage' \
+            --exclude='public/build' \
+            -e "ssh -p 2224 -i ~/.ssh/id_rsa_prod -o StrictHostKeyChecking=no" \
+            ./ root@220.132.7.82:/var/www/star-erp/
+          rm ~/.ssh/id_rsa_prod
+
+      - name: Step 2 - Check if Rebuild Needed
+        id: check_rebuild_prod
+        uses: appleboy/ssh-action@master
+        with:
+          host: 220.132.7.82
+          port: 2224
+          username: root
+          key: ${{ secrets.PROD_SSH_KEY }}
+          script: |
+            cd /var/www/star-erp
+
+            if git diff --name-only HEAD~1 HEAD 2>/dev/null | grep -qE '(Dockerfile|compose\.yaml|docker-compose\.yaml)'; then
+              echo "REBUILD_NEEDED=true"
+            else
+              echo "REBUILD_NEEDED=false"
+            fi
+
+      - name: Step 3 - Container Up & Health Check
+        uses: appleboy/ssh-action@master
+        with:
+          host: 220.132.7.82
+          port: 2224
+          username: root
+          key: ${{ secrets.PROD_SSH_KEY }}
+          script: |
+            cd /var/www/star-erp
+            chown -R 1000:1000 .
+            
+            if git diff --name-only HEAD~1 HEAD 2>/dev/null | grep -qE '(Dockerfile|compose\.yaml|compose\.prod\.yaml|docker-compose\.yaml)'; then
+              echo "🔄 偵測到 Docker 相關檔案變更，執行完整重建..."
+              WWWGROUP=1000 WWWUSER=1000 docker compose -f compose.yaml -f compose.prod.yaml up -d --build --wait
+            else
+              echo "⚡ 無 Docker 檔案變更，僅重載服務..."
+              if ! docker ps --format '{{.Names}}' | grep -q 'star-erp-laravel'; then
+                echo "容器未運行，正在啟動..."
+                WWWGROUP=1000 WWWUSER=1000 docker compose -f compose.yaml -f compose.prod.yaml up -d --wait
+              else
+                echo "容器已運行，跳過 docker compose，直接進行程式碼部署..."
+              fi
+            fi
+            
+            echo "容器狀態：" && docker ps --filter "name=star-erp-laravel"
+
+            docker exec -u 1000:1000 -w /var/www/html star-erp-laravel sh -c "
+              composer install --no-dev --optimize-autoloader &&
+              npm install &&
+              npm run build &&
+              rm -f public/hot
+
+              php artisan storage:link &&
+              php artisan migrate --force &&
+              php artisan tenants:migrate --force &&
+              php artisan db:seed --force &&
+              php artisan tenants:run db:seed --option=\"class=PermissionSeeder\" --option=\"force=true\" &&
+              php artisan tenants:run db:seed --option=\"class=SystemSettingSeeder\" --option=\"force=true\" &&
+              php artisan permission:cache-reset &&
+              php artisan optimize:clear &&
+              php artisan optimize &&
+              php artisan view:cache
+            "
+            docker exec star-erp-laravel chmod -R 775 /var/www/html/storage /var/www/html/bootstrap/cache

.gitea/workflows/deploy.yaml

@@ -1,200 +0,0 @@
-name: Koori-ERP-Deploy-System
-
-on:
-  push:
-    branches:
-      - demo
-      - main
-
-jobs:
-  # --- 1. Demo 環境部署 (103 本機) ---
-  deploy-demo:
-    if: github.ref == 'refs/heads/demo'
-    runs-on: ubuntu-latest
-    steps:
-      - name: Checkout Code
-        uses: actions/checkout@v3
-        with:
-          github-server-url: http://192.168.0.103:3000
-          repository: ${{ github.repository }}
-
-      - name: Step 1 - Push Code to Demo
-        run: |
-          apt-get update && apt-get install -y rsync openssh-client
-          mkdir -p ~/.ssh
-          echo "${{ secrets.DEMO_SSH_KEY }}" > ~/.ssh/id_rsa_demo
-          chmod 600 ~/.ssh/id_rsa_demo
-          rsync -avz --delete \
-            --exclude='.git' \
-            --exclude='node_modules' \
-            --exclude='vendor' \
-            --exclude='storage' \
-            --exclude='.env' \
-            --exclude='public/build' \
-            -e "ssh -i ~/.ssh/id_rsa_demo -o StrictHostKeyChecking=no" \
-            ./ amba@192.168.0.103:/home/amba/star-erp/
-          rm ~/.ssh/id_rsa_demo
-
-      # 2. 檢查是否需要重建容器（只有 Dockerfile 或 compose.yaml 變動時才重建）
-      - name: Step 2 - Check if Rebuild Needed
-        id: check_rebuild
-        uses: appleboy/ssh-action@master
-        with:
-          host: 192.168.0.103
-          port: 22
-          username: amba
-          key: ${{ secrets.DEMO_SSH_KEY }}
-          script: |
-            cd /home/amba/star-erp
-            # 檢查最近的 commit 是否包含 Dockerfile 或 compose.yaml 的變更
-            if git diff --name-only HEAD~1 HEAD 2>/dev/null | grep -qE '(Dockerfile|compose\.yaml|docker-compose\.yaml)'; then
-              echo "REBUILD_NEEDED=true"
-            else
-              echo "REBUILD_NEEDED=false"
-            fi
-
-      # 3. 啟動或重建容器（根據檢查結果決定是否加 --build）
-      - name: Step 3 - Container Up & Health Check
-        uses: appleboy/ssh-action@master
-        with:
-          host: 192.168.0.103
-          port: 22
-          username: amba
-          key: ${{ secrets.DEMO_SSH_KEY }}
-          script: |
-            cd /home/amba/koori-erp
-            chown -R 1000:1000 .
-            
-            # 檢查是否需要重建
-            if git diff --name-only HEAD~1 HEAD 2>/dev/null | grep -qE '(Dockerfile|compose\.yaml|docker-compose\.yaml)'; then
-              echo "🔄 偵測到 Docker 相關檔案變更，執行完整重建..."
-              WWWGROUP=1000 WWWUSER=1000 docker compose up -d --build --wait
-            else
-              echo "⚡ 無 Docker 檔案變更，僅重載服務..."
-              # 確保容器正在運行（若未運行則啟動）
-              if ! docker ps --format '{{.Names}}' | grep -q 'koori-erp-laravel'; then
-                echo "容器未運行，正在啟動..."
-                WWWGROUP=1000 WWWUSER=1000 docker compose up -d --wait
-              else
-                echo "容器已運行，跳過 docker compose，直接進行程式碼部署..."
-              fi
-            fi
-            
-            echo "容器狀態：" && docker ps --filter "name=koori-erp-laravel"
-
-
-      - name: Step 4 - Composer & NPM Build
-        uses: appleboy/ssh-action@master
-        with:
-          host: 192.168.0.103
-          port: 22
-          username: amba
-          key: ${{ secrets.DEMO_SSH_KEY }}
-          script: |
-           docker exec -u 1000:1000 -w /var/www/html star-erp-laravel sh -c "
-            # 1. 後端依賴 (Demo 環境建議加上 --no-interaction 避免卡住)
-            composer install --no-dev --optimize-autoloader --no-interaction &&
-            
-            # 2. 前端編譯
-            npm install &&
-            npm run build &&
-            
-            # 3. Laravel 初始化與優化
-            php artisan migrate --force &&
-            php artisan db:seed --force &&
-            php artisan optimize:clear &&
-            php artisan optimize &&
-            php artisan view:cache
-           "
-           docker exec star-erp-laravel chmod -R 775 /var/www/html/storage /var/www/html/bootstrap/cache
-
-  # --- 2. 正式環境部署 (erp.koori.tw:2224) ---
-  deploy-production:
-    if: github.ref == 'refs/heads/main'
-    runs-on: ubuntu-latest
-    steps:
-      - name: Checkout Code
-        uses: actions/checkout@v3
-        with:
-          github-server-url: http://192.168.0.103:3000 
-          repository: ${{ github.repository }}
-
-      - name: Step 1 - Push Code to Production
-        run: |
-          apt-get update && apt-get install -y rsync openssh-client
-          mkdir -p ~/.ssh
-          echo "${{ secrets.PROD_SSH_KEY }}" > ~/.ssh/id_rsa_prod
-          chmod 600 ~/.ssh/id_rsa_prod
-          rsync -avz --delete \
-            --exclude='.git' \
-            --exclude='.env' \
-            --exclude='node_modules' \
-            --exclude='vendor' \
-            --exclude='public/build' \
-            -e "ssh -p 2224 -i ~/.ssh/id_rsa_prod -o StrictHostKeyChecking=no" \
-            ./ root@erp.koori.tw:/var/www/star-erp/
-          rm ~/.ssh/id_rsa_prod
-
-
-      # 2. 檢查是否需要重建容器（只有 Dockerfile 或 compose.yaml 變動時才重建）
-      - name: Step 2 - Check if Rebuild Needed
-        id: check_rebuild_prod
-        uses: appleboy/ssh-action@master
-        with:
-          host: erp.koori.tw
-          port: 2224
-          username: root
-          key: ${{ secrets.PROD_SSH_KEY }}
-          script: |
-            cd /var/www/star-erp
-            # [Patch] 修正正式機 Nginx Proxy 配置 (對應外部 SSL/OpenResty)
-            sed -i "s/- '8080:8080'/- '80:80'\n            - '8080:8080'/" compose.yaml
-            sed -i "s/demo-proxy.conf/prod-proxy.conf/" compose.yaml
-
-            # 檢查最近的 commit 是否包含 Dockerfile 或 compose.yaml 的變更
-            if git diff --name-only HEAD~1 HEAD 2>/dev/null | grep -qE '(Dockerfile|compose\.yaml|docker-compose\.yaml)'; then
-              echo "REBUILD_NEEDED=true"
-            else
-              echo "REBUILD_NEEDED=false"
-            fi
-
-      # 3. 啟動或重建容器（根據檢查結果決定是否加 --build）
-      - name: Step 3 - Container Up & Health Check
-        uses: appleboy/ssh-action@master
-        with:
-          host: erp.koori.tw
-          port: 2224
-          username: root
-          key: ${{ secrets.PROD_SSH_KEY }}
-          script: |
-            cd /var/www/star-erp
-            chown -R 1000:1000 .
-            
-            # 檢查是否需要重建
-            if git diff --name-only HEAD~1 HEAD 2>/dev/null | grep -qE '(Dockerfile|compose\.yaml|docker-compose\.yaml)'; then
-              echo "🔄 偵測到 Docker 相關檔案變更，執行完整重建..."
-              WWWGROUP=1000 WWWUSER=1000 docker compose up -d --build --wait
-            else
-              echo "⚡ 無 Docker 檔案變更，僅重載服務..."
-              # 確保容器正在運行（若未運行則啟動）
-              if ! docker ps --format '{{.Names}}' | grep -q 'star-erp-laravel'; then
-                echo "容器未運行，正在啟動..."
-                WWWGROUP=1000 WWWUSER=1000 docker compose up -d --wait
-              else
-                echo "容器已運行，跳過 docker compose，直接進行程式碼部署..."
-              fi
-            fi
-            
-            echo "容器狀態：" && docker ps --filter "name=star-erp-laravel"
-
-            docker exec -u 1000:1000 -w /var/www/html star-erp-laravel sh -c "
-              composer install --no-dev --optimize-autoloader &&
-              npm install &&
-              npm run build
-
-              php artisan migrate --force &&
-              php artisan optimize:clear &&
-              php artisan optimize &&
-              php artisan view:cache
-            "
-            docker exec star-erp-laravel chmod -R 775 /var/www/html/storage /var/www/html/bootstrap/cache

.gitignore

@@ -18,6 +18,7 @@
 /public/storage
 /storage/*.key
 /storage/pail
+/storage/tenant*
 /vendor
 Homestead.json
 Homestead.yaml
@@ -26,3 +27,19 @@ Thumbs.db
 智慧補貨系統分析報告.md
 
 /docs/pptx_build
+/docs/presentation
+docs/Monthly_Report_2026_01.pptx
+docs/f6_1770350984272.xlsx
+公共事業費-描述.md
+.gitignore
+BOM表自動計算成本.md
+公共事業費-類別維護.md
+
+# Playwright
+node_modules/
+/test-results/
+/playwright-report/
+/blob-report/
+/playwright/.cache/
+/playwright/.auth/
+e2e/screenshots/

README.md

@@ -13,7 +13,7 @@ Star ERP 是一個基於 **Laravel 12**、**Inertia.js (React)** 與 **Tailwind
 
 ## 📂 系統功能詳細說明
 
-### 🌳 系統功能架構樹 (含 2.0 升級規劃)
+### 🌳 預計系統功能架構樹 (含 2.0 升級規劃)
 ```text
 Star ERP
 ├── 🏠 儀表板 (Dashboard)
@@ -107,6 +107,7 @@ Star ERP
 git clone <repository_url> star-erp
 cd star-erp
 
+
 # 2. 設定環境變數
 cp .env.example .env
 # 請檢查 .env 內容，本機開發預設配置：
@@ -171,7 +172,6 @@ docker exec -it star-erp-laravel php artisan tinker
 # 停止容器
 docker compose down
 ```
-
 ## 🧪 開發規範
 
 - **後端**: Follow Laravel 12 最佳實踐，使用 Service/Action 模式處理複雜邏輯。

app/Console/Commands/NotifyUtilityFeeStatus.php

@@ -0,0 +1,112 @@
+<?php
+
+namespace App\Console\Commands;
+
+use Illuminate\Console\Command;
+
+class NotifyUtilityFeeStatus extends Command
+{
+    /**
+     * The name and signature of the console command.
+     *
+     * @var string
+     */
+    protected $signature = 'finance:notify-utility-fees';
+
+    /**
+     * The console command description.
+     *
+     * @var string
+     */
+    protected $description = '檢查公共事業費狀態並寄送 Email 通知管理員';
+
+    /**
+     * Execute the console command.
+     */
+    public function handle()
+    {
+        $this->info("正在掃描公共事業費狀態...");
+
+        // 1. 更新逾期狀態 (pending -> overdue)
+        \App\Modules\Finance\Models\UtilityFee::where('payment_status', \App\Modules\Finance\Models\UtilityFee::STATUS_PENDING)
+            ->whereNotNull('due_date')
+            ->where('due_date', '<', now()->startOfDay())
+            ->update(['payment_status' => \App\Modules\Finance\Models\UtilityFee::STATUS_OVERDUE]);
+
+        // 2. 獲取可能需要處理的單據 (pending 或 overdue)
+        $feesToCheck = \App\Modules\Finance\Models\UtilityFee::whereIn('payment_status', [
+                \App\Modules\Finance\Models\UtilityFee::STATUS_PENDING,
+                \App\Modules\Finance\Models\UtilityFee::STATUS_OVERDUE
+            ])
+            ->whereNotNull('due_date')
+            ->orderBy('due_date', 'asc')
+            ->get();
+
+        if ($feesToCheck->isEmpty()) {
+            $this->info("目前沒有未繳納的公共事業費。");
+            return 0;
+        }
+
+        // 3. 根據業務規則過濾出今天「真正」需要發信的單據
+        $today = now()->startOfDay();
+        $unpaidFees = $feesToCheck->filter(function ($fee) use ($today) {
+            $dueDate = \Illuminate\Support\Carbon::parse($fee->due_date)->startOfDay();
+            $diffInDays = $today->diffInDays($dueDate, false);
+
+            // 如果已經逾期 (overdue)，每天都要發信
+            if ($fee->payment_status === \App\Modules\Finance\Models\UtilityFee::STATUS_OVERDUE) {
+                return true;
+            }
+
+            // 如果是待繳納 (pending)，僅在特定天數發信
+            // 規則：到期前 7 天、3 天、當天 (0 天)
+            return in_array($diffInDays, [7, 3, 0]);
+        });
+
+        if ($unpaidFees->isEmpty()) {
+            $this->info("今日無符合發信條件的公共事業費提醒。");
+            return 0;
+        }
+
+        // 4. 讀取系統設定
+        $senderEmail = \App\Modules\Core\Models\SystemSetting::getVal('notification.utility_fee_sender_email');
+        $senderPassword = \App\Modules\Core\Models\SystemSetting::getVal('notification.utility_fee_sender_password');
+        $recipientEmailsStr = \App\Modules\Core\Models\SystemSetting::getVal('notification.utility_fee_recipient_emails');
+
+        if (empty($senderEmail) || empty($senderPassword) || empty($recipientEmailsStr)) {
+            $this->warn("系統設定中缺乏完整的 Email 通知參數，跳過寄送通知。請至「系統設定」->「通知設定」完善資料。");
+            return 0;
+        }
+
+        // 4. 動態覆寫應用程式名稱與 SMTP Config
+        $tenantName = tenant('name') ?? config('app.name');
+        config([
+            'app.name' => $tenantName,
+            'mail.mailers.smtp.username' => $senderEmail,
+            'mail.mailers.smtp.password' => $senderPassword,
+            'mail.from.address' => $senderEmail,
+            'mail.from.name' => $tenantName . ' (系統通知)'
+        ]);
+
+        // 清理原先可能的 Mailer 實例，確保使用新的 Config
+        \Illuminate\Support\Facades\Mail::purge();
+
+        // 5. 解析收件者並寄送 Email
+        $recipients = array_map('trim', explode(',', $recipientEmailsStr));
+        $validRecipients = array_filter($recipients, fn($e) => filter_var($e, FILTER_VALIDATE_EMAIL));
+        
+        if (empty($validRecipients)) {
+            $this->warn("無效的收件者 Email 格式，跳過寄送通知。");
+            return 0;
+        }
+
+        try {
+            \Illuminate\Support\Facades\Mail::to($validRecipients)->send(new \App\Mail\PaymentReminderMail($unpaidFees));
+            $this->info("通知郵件已成功寄送至: " . implode(', ', $validRecipients));
+        } catch (\Exception $e) {
+            $this->error("Email 寄送失敗: " . $e->getMessage());
+        }
+
+        return 0;
+    }
+}

app/Http/Controllers/Landlord/TenantController.php

@@ -19,6 +19,7 @@ class TenantController extends Controller
             return [
                 'id' => $tenant->id,
                 'name' => $tenant->name ?? $tenant->id,
+                'short_name' => $tenant->short_name ?? null,
                 'email' => $tenant->email ?? null,
                 'is_active' => $tenant->is_active ?? true,
                 'created_at' => $tenant->created_at->format('Y-m-d H:i'),
@@ -47,6 +48,7 @@ class TenantController extends Controller
         $validated = $request->validate([
             'id' => ['required', 'string', 'max:50', 'alpha_dash', Rule::unique('tenants', 'id')],
             'name' => ['required', 'string', 'max:100'],
+            'short_name' => ['nullable', 'string', 'max:50'],
             'email' => ['nullable', 'email', 'max:100'],
             'domain' => ['nullable', 'string', 'max:100'],
         ]);
@@ -54,8 +56,14 @@ class TenantController extends Controller
         $tenant = Tenant::create([
             'id' => $validated['id'],
             'name' => $validated['name'],
+            'short_name' => $validated['short_name'] ?? null,
             'email' => $validated['email'] ?? null,
             'is_active' => true,
+            'branding' => [
+                'logo_path' => 'defaults/logo.png', // 預設 Logo 路徑
+                'login_background_path' => 'defaults/login_bg.jpg', // 預設登入背景
+                'primary_color' => '#4F46E5', // 預設主色系 (Indigo-600)
+            ],
         ]);
 
         // 綁定網域（如果沒有輸入，使用預設網域）
@@ -76,10 +84,29 @@ class TenantController extends Controller
     {
         $tenant = Tenant::with('domains')->findOrFail($id);
 
+        $tokens = [];
+        try {
+            tenancy()->initialize($tenant);
+            $user = \App\Modules\Core\Models\User::first();
+            if ($user) {
+                $tokens = $user->tokens()->orderBy('created_at', 'desc')->get(['id', 'name', 'last_used_at', 'created_at'])->map(function($token) {
+                    return [
+                        'id' => $token->id,
+                        'name' => $token->name,
+                        'last_used_at' => $token->last_used_at ? $token->last_used_at->format('Y-m-d H:i') : '未使用',
+                        'created_at' => $token->created_at->format('Y-m-d H:i'),
+                    ];
+                });
+            }
+        } catch (\Exception $e) {
+            \Log::warning("Failed to fetch tokens for tenant {$id}: " . $e->getMessage());
+        }
+
         return Inertia::render('Landlord/Tenant/Show', [
             'tenant' => [
                 'id' => $tenant->id,
                 'name' => $tenant->name ?? $tenant->id,
+                'short_name' => $tenant->short_name ?? null,
                 'email' => $tenant->email ?? null,
                 'is_active' => $tenant->is_active ?? true,
                 'created_at' => $tenant->created_at->format('Y-m-d H:i'),
@@ -89,6 +116,7 @@ class TenantController extends Controller
                     'domain' => $d->domain,
                 ])->toArray(),
             ],
+            'tokens' => $tokens,
         ]);
     }
 
@@ -123,6 +151,7 @@ class TenantController extends Controller
             'tenant' => [
                 'id' => $tenant->id,
                 'name' => $tenant->name ?? $tenant->id,
+                'short_name' => $tenant->short_name ?? null,
                 'email' => $tenant->email ?? null,
                 'is_active' => $tenant->is_active ?? true,
             ],
@@ -138,6 +167,7 @@ class TenantController extends Controller
 
         $validated = $request->validate([
             'name' => ['required', 'string', 'max:100'],
+            'short_name' => ['nullable', 'string', 'max:50'],
             'email' => ['nullable', 'email', 'max:100'],
             'is_active' => ['boolean'],
         ]);
@@ -231,4 +261,58 @@ class TenantController extends Controller
 
         return redirect()->back()->with('success', '樣式設定已更新');
     }
+
+    /**
+     * 建立 API Token (用於 POS)
+     */
+    public function createToken(Request $request, Tenant $tenant)
+    {
+        $request->validate([
+            'name' => 'required|string|max:50',
+        ]);
+
+        try {
+            // 切換至租戶環境
+            tenancy()->initialize($tenant);
+
+            // 尋找超級管理員 (假設 ID 1, 或者根據 Role)
+            // 這裡簡單取第一個使用者，通常是 Admin
+            $user = \App\Modules\Core\Models\User::first();
+
+            if (!$user) {
+                return back()->with('error', '該租戶尚無使用者，無法建立 Token。');
+            }
+
+            // 建立 Token
+            $token = $user->createToken($request->name);
+
+            return back()->with('success', 'Token 建立成功')->with('new_token', $token->plainTextToken);
+        } catch (\Exception $e) {
+            \Log::error("Token creation failed: " . $e->getMessage());
+            return back()->with('error', 'Token 建立失敗');
+        } finally {
+             // tenancy()->end(); // Laravel Tenancy 自動處理 scope 結束? 通常 Controller request life-cycle?
+             // Landlord controller is Central. Tenancy initialization persists for request.
+             // We should explicit end if we want to be safe, but redirect ends request anyway.
+        }
+    }
+
+    /**
+     * 撤銷 API Token
+     */
+    public function revokeToken(Request $request, Tenant $tenant, string $tokenId)
+    {
+        try {
+            tenancy()->initialize($tenant);
+            $user = \App\Modules\Core\Models\User::first();
+            
+            if ($user) {
+                $user->tokens()->where('id', $tokenId)->delete();
+            }
+
+            return back()->with('success', 'Token 已撤銷');
+        } catch (\Exception $e) {
+            return back()->with('error', 'Token 撤銷失敗');
+        }
+    }
 }

app/Http/Middleware/HandleInertiaRequests.php

@@ -37,8 +37,16 @@ class HandleInertiaRequests extends Middleware
     {
         $user = $request->user();
         
+        $tenant = tenancy()->tenant;
+        $appName = $tenant ? ($tenant->name ?? 'Star ERP') : 'Star ERP 中央後台';
+        
+        // 分享給 Blade View (給 app.blade.php 使用)
+        \Illuminate\Support\Facades\View::share('appName', $appName);
+
         return [
             ...parent::share($request),
+            'appName' => $appName,
+            'app_version' => config('app.version'),
             'auth' => [
                 'user' => $user ? [
                     'id' => $user->id,
@@ -54,23 +62,40 @@ class HandleInertiaRequests extends Middleware
             'flash' => [
                 'success' => $request->session()->get('success'),
                 'error' => $request->session()->get('error'),
+                'new_token' => $request->session()->get('new_token'),
             ],
             'branding' => function () {
                 $tenant = tenancy()->tenant;
-                if (!$tenant) {
-                    return null;
-                }
+                
+                // 決定名稱顯示邏輯
+                $fullName = $tenant ? ($tenant->name ?? 'Star ERP') : 'Star ERP 中央後台';
+                $shortName = $tenant ? ($tenant->short_name ?? $fullName) : 'Start ERP';
 
                 $logoUrl = null;
-                if (isset($tenant->branding['logo_path'])) {
+                if ($tenant && isset($tenant->branding['logo_path'])) {
                     $logoUrl = \Storage::url($tenant->branding['logo_path']);
+                } elseif (!$tenant) {
+                    $logoUrl = \Storage::url('defaults/logo.png');
                 }
 
-                return [
+                $brandingData = [
+                    'name' => $fullName,
+                    'short_name' => $shortName,
                     'logo_url' => $logoUrl,
-                    'primary_color' => $tenant->branding['primary_color'] ?? '#01ab83',
+                    'primary_color' => $tenant->branding['primary_color'] ?? ($tenant ? '#01ab83' : '#4F46E5'),
                     'text_color' => $tenant->branding['text_color'] ?? '#1a1a1a',
                 ];
+
+                // 同步分享給 Blade View (給 app.blade.php 使用 Favicon)
+                \Illuminate\Support\Facades\View::share('branding', $brandingData);
+
+                return $brandingData;
+            },
+            'notifications' => function () use ($request) {
+                return $request->user() ? [
+                    'latest' => $request->user()->notifications()->latest()->limit(10)->get(),
+                    'unread_count' => $request->user()->unreadNotifications()->count(),
+                ] : null;
             },
         ];
     }

app/Mail/PaymentReminderMail.php

@@ -0,0 +1,59 @@
+<?php
+
+namespace App\Mail;
+
+use Illuminate\Bus\Queueable;
+use Illuminate\Contracts\Queue\ShouldQueue;
+use Illuminate\Mail\Mailable;
+use Illuminate\Mail\Mailables\Content;
+use Illuminate\Mail\Mailables\Envelope;
+use Illuminate\Queue\SerializesModels;
+
+class PaymentReminderMail extends Mailable
+{
+    use Queueable, SerializesModels;
+
+    public $fees;
+
+    /**
+     * Create a new message instance.
+     */
+    public function __construct($fees)
+    {
+        $this->fees = $fees;
+    }
+
+    /**
+     * Get the message envelope.
+     */
+    public function envelope(): Envelope
+    {
+        $tenantName = tenant('name') ?? '系統';
+        return new Envelope(
+            subject: "【{$tenantName}】公共事業費繳費/逾期通知",
+        );
+    }
+
+    /**
+     * Get the message content definition.
+     */
+    public function content(): Content
+    {
+        return new Content(
+            markdown: 'emails.payment-reminder',
+            with: [
+                'fees' => $this->fees,
+            ],
+        );
+    }
+
+    /**
+     * Get the attachments for the message.
+     *
+     * @return array<int, \Illuminate\Mail\Mailables\Attachment>
+     */
+    public function attachments(): array
+    {
+        return [];
+    }
+}

app/Mail/TestNotificationMail.php

@@ -0,0 +1,54 @@
+<?php
+
+namespace App\Mail;
+
+use Illuminate\Bus\Queueable;
+use Illuminate\Contracts\Queue\ShouldQueue;
+use Illuminate\Mail\Mailable;
+use Illuminate\Mail\Mailables\Content;
+use Illuminate\Mail\Mailables\Envelope;
+use Illuminate\Queue\SerializesModels;
+
+class TestNotificationMail extends Mailable
+{
+    use Queueable, SerializesModels;
+
+    /**
+     * Create a new message instance.
+     */
+    public function __construct()
+    {
+        //
+    }
+
+    /**
+     * Get the message envelope.
+     */
+    public function envelope(): Envelope
+    {
+        $tenantName = tenant('name') ?? '系統';
+        return new Envelope(
+            subject: "【{$tenantName}】電子郵件通知測試",
+        );
+    }
+
+    /**
+     * Get the message content definition.
+     */
+    public function content(): Content
+    {
+        return new Content(
+            markdown: 'emails.test-notification',
+        );
+    }
+
+    /**
+     * Get the attachments for the message.
+     *
+     * @return array<int, \Illuminate\Mail\Mailables\Attachment>
+     */
+    public function attachments(): array
+    {
+        return [];
+    }
+}

app/Modules/Core/Controllers/ActivityLogController.php

@@ -22,13 +22,27 @@ class ActivityLogController extends Controller
             'App\Modules\Procurement\Models\PurchaseOrder' => '採購單',
             'App\Modules\Inventory\Models\Warehouse' => '倉庫',
             'App\Modules\Inventory\Models\Inventory' => '庫存',
+            'App\Modules\Inventory\Models\InventoryTransaction' => '庫存異動紀錄',
             'App\Modules\Finance\Models\UtilityFee' => '公共事業費',
+            'App\Modules\Inventory\Models\GoodsReceipt' => '進貨單',
+            'App\Modules\Production\Models\ProductionOrder' => '生產工單',
+            'App\Modules\Production\Models\Recipe' => '生產配方',
+            'App\Modules\Production\Models\RecipeItem' => '配方品項',
+            'App\Modules\Production\Models\ProductionOrderItem' => '工單品項',
+            'App\Modules\Inventory\Models\InventoryCountDoc' => '庫存盤點單',
+            'App\Modules\Inventory\Models\InventoryAdjustDoc' => '庫存盤調單',
+            'App\Modules\Inventory\Models\InventoryTransferOrder' => '庫存調撥單',
+            'App\Modules\Inventory\Models\StoreRequisition' => '門市叫貨單',
         ];
     }
 
     public function index(Request $request)
     {
-        $perPage = $request->input('per_page', 10);
+        $defaultPerPage = \App\Modules\Core\Models\SystemSetting::getVal('display.per_page', 10);
+        $perPage = $request->input('per_page', $defaultPerPage);
+        if (!in_array((int)$perPage, [10, 20, 50, 100])) {
+            $perPage = $defaultPerPage;
+        }
         $sortBy = $request->input('sort_by', 'created_at');
         $sortOrder = $request->input('sort_order', 'desc');
 
@@ -76,6 +90,7 @@ class ActivityLogController extends Controller
         }
 
         $activities = $query->paginate($perPage)
+            ->withQueryString()
             ->through(function ($activity) {
         $subjectMap = $this->getSubjectMap();
 

app/Modules/Core/Controllers/Auth/LoginController.php

@@ -7,6 +7,7 @@ use Illuminate\Http\Request;
 use Illuminate\Support\Facades\Auth;
 use Inertia\Inertia;
 use Illuminate\Validation\ValidationException;
+use Illuminate\Support\Facades\Cookie;
 
 class LoginController extends Controller
 {
@@ -42,17 +43,27 @@ class LoginController extends Controller
         $credentials = $request->only('username', 'password');
 
         if (Auth::attempt($credentials, $request->boolean('remember'))) {
+            // Check activation status
+            if (!Auth::user()->is_active) {
+                Auth::guard('web')->logout();
+                $request->session()->invalidate();
+                $request->session()->regenerateToken();
+
+                throw ValidationException::withMessages([
+                    'username' => '此帳號已被停用，請聯繫管理員。',
+                ]);
+            }
+
             $request->session()->regenerate();
 
-            $centralDomains = config('tenancy.central_domains', []);
             $centralDomains = config('tenancy.central_domains', []);
             // [Hack] Demo 環境特殊規則
             $demoPort = config('tenancy.demo_tenant_port');
             if ((!$demoPort || $request->getPort() != $demoPort) && in_array($request->getHost(), $centralDomains)) {
-                return redirect()->intended(route('landlord.dashboard'));
+                return Inertia::location(route('landlord.dashboard'));
             }
 
-            return redirect()->intended(route('dashboard'));
+            return Inertia::location(route('dashboard'));
         }
 
         throw ValidationException::withMessages([
@@ -71,6 +82,10 @@ class LoginController extends Controller
 
         $request->session()->regenerateToken();
         
+        // 強制清除 Session Cookie (對付 HTTPS/Proxy 環境下的殘留問題)
+        $sessionCookieName = config('session.cookie');
+        Cookie::queue(Cookie::forget($sessionCookieName));
+
         return redirect('/');
     }
 }

app/Modules/Core/Controllers/DashboardController.php

@@ -6,6 +6,8 @@ use App\Http\Controllers\Controller;
 
 use App\Modules\Inventory\Contracts\InventoryServiceInterface;
 use App\Modules\Procurement\Contracts\ProcurementServiceInterface;
+use App\Modules\Sales\Contracts\SalesServiceInterface;
+use App\Modules\Production\Contracts\ProductionServiceInterface;
 use Inertia\Inertia;
 use Illuminate\Http\Request;
 
@@ -13,13 +15,19 @@ class DashboardController extends Controller
 {
     protected $inventoryService;
     protected $procurementService;
+    protected $salesService;
+    protected $productionService;
 
     public function __construct(
         InventoryServiceInterface $inventoryService,
-        ProcurementServiceInterface $procurementService
+        ProcurementServiceInterface $procurementService,
+        SalesServiceInterface $salesService,
+        ProductionServiceInterface $productionService
     ) {
         $this->inventoryService = $inventoryService;
         $this->procurementService = $procurementService;
+        $this->salesService = $salesService;
+        $this->productionService = $productionService;
     }
 
     public function index()
@@ -34,18 +42,91 @@ class DashboardController extends Controller
         $invStats = $this->inventoryService->getDashboardStats();
         $procStats = $this->procurementService->getDashboardStats();
 
-        $stats = [
-            'productsCount' => $invStats['productsCount'],
-            'vendorsCount' => $procStats['vendorsCount'],
-            'purchaseOrdersCount' => $procStats['purchaseOrdersCount'],
-            'warehousesCount' => $invStats['warehousesCount'],
-            'totalInventoryValue' => $invStats['totalInventoryQuantity'], // 原本前端命名是 totalInventoryValue 但實作是 Quantity，暫且保留欄位名以不破壞前端
-            'pendingOrdersCount' => $procStats['pendingOrdersCount'],
-            'lowStockCount' => $invStats['lowStockCount'],
-        ];
+        // 銷售統計 (本月營收)
+        $thisMonthRevenue = $this->salesService->getThisMonthRevenue();
+
+        // 生產統計 (待核准工單)
+        $pendingProductionCount = $this->productionService->getPendingProductionCount();
+        
+        // 生產狀態分佈
+        // 近30日銷售趨勢 (Area Chart)
+        $salesTrend = $this->salesService->getSalesTrend();
+
+        // 本月熱銷商品 Top 5 (Bar Chart)
+        $topSellingItems = $this->salesService->getTopSellingProducts();
+        $productIds = $topSellingItems->pluck('product_id')->filter()->unique()->toArray();
+        $productsMap = $this->inventoryService->getProductsByIds($productIds)->keyBy('id');
+
+        $topSellingProducts = $topSellingItems->map(function ($item) use ($productsMap) {
+            $product = $productsMap->get($item->product_id);
+            return [
+                'name' => $product ? $product->name : $item->product_code,
+                'amount' => (int)$item->total_amount,
+            ];
+        });
+
+        // 庫存積壓排行 (Top Inventory Value)
+        $topInventoryValueItems = $this->inventoryService->getTopInventoryValue();
+        $invProductIds = $topInventoryValueItems->pluck('product_id')->filter()->unique()->toArray();
+        $invProductsMap = $this->inventoryService->getProductsByIds($invProductIds)->keyBy('id');
+
+        $topInventoryValue = $topInventoryValueItems->map(function ($item) use ($invProductsMap) {
+            $product = $invProductsMap->get($item->product_id);
+            return [
+                'name' => $product ? $product->name : 'Unknown Product',
+                'code' => $product ? $product->code : '',
+                'value' => (int)$item->total_value,
+            ];
+        });
+
+        // 熱銷數量排行 (Top Selling by Quantity)
+        $topSellingQtyItems = $this->salesService->getTopSellingByQuantity();
+        $qtyProductIds = $topSellingQtyItems->pluck('product_id')->filter()->unique()->toArray();
+        $qtyProductsMap = $this->inventoryService->getProductsByIds($qtyProductIds)->keyBy('id');
+
+        $topSellingByQuantity = $topSellingQtyItems->map(function ($item) use ($qtyProductsMap) {
+            $product = $qtyProductsMap->get($item->product_id);
+            return [
+                'name' => $product ? $product->name : $item->product_code,
+                'code' => $item->product_code,
+                'value' => (int)$item->total_quantity,
+            ];
+        });
+
+        // 即將過期商品 (Expiring Soon)
+        $expiringItems = $this->inventoryService->getExpiringSoon();
+        $expiringProductIds = $expiringItems->pluck('product_id')->filter()->unique()->toArray();
+        $expiringProductsMap = $this->inventoryService->getProductsByIds($expiringProductIds)->keyBy('id');
+
+        $expiringSoon = $expiringItems->map(function ($item) use ($expiringProductsMap) {
+            $product = $expiringProductsMap->get($item->product_id);
+            return [
+                'name' => $product ? $product->name : 'Unknown Product',
+                'batch_number' => $item->batch_number,
+                'expiry_date' => $item->expiry_date->format('Y-m-d'),
+                'quantity' => (int)$item->quantity,
+            ];
+        });
 
         return Inertia::render('Dashboard', [
-            'stats' => $stats,
+            'stats' => [
+                'totalItems' => $invStats['productsCount'],
+                'lowStockCount' => $invStats['lowStockCount'],
+                'negativeCount' => $invStats['negativeCount'] ?? 0,
+                'expiringCount' => $invStats['expiringCount'] ?? 0,
+                'totalInventoryValue' => $invStats['totalInventoryValue'] ?? 0,
+                'thisMonthRevenue' => $thisMonthRevenue,
+                'pendingOrdersCount' => $procStats['pendingOrdersCount'] ?? 0,
+                'pendingTransferCount' => $invStats['pendingTransferCount'] ?? 0,
+                'pendingProductionCount' => $pendingProductionCount,
+                'todoCount' => ($procStats['pendingOrdersCount'] ?? 0) + ($invStats['pendingTransferCount'] ?? 0) + $pendingProductionCount,
+                'salesTrend' => $salesTrend,
+                'topSellingProducts' => $topSellingProducts,
+                'topInventoryValue' => $topInventoryValue,
+                'topSellingByQuantity' => $topSellingByQuantity,
+                'expiringSoon' => $expiringSoon,
+            ],
         ]);
     }
 }
+

app/Modules/Core/Controllers/NotificationController.php

@@ -0,0 +1,41 @@
+<?php
+
+namespace App\Modules\Core\Controllers;
+
+use App\Http\Controllers\Controller;
+use Illuminate\Http\Request;
+
+class NotificationController extends Controller
+{
+    /**
+     * Mark a specific notification as read.
+     */
+    public function markAsRead(Request $request, string $id)
+    {
+        $notification = $request->user()->notifications()->findOrFail($id);
+        $notification->markAsRead();
+
+        return back();
+    }
+
+    /**
+     * Mark all notifications as read.
+     */
+    public function markAllAsRead(Request $request)
+    {
+        $request->user()->unreadNotifications->markAsRead();
+
+        return back();
+    }
+
+    /**
+     * Check for new notifications.
+     */
+    public function check(Request $request)
+    {
+        return response()->json([
+            'unread_count' => $request->user()->unreadNotifications()->count(),
+            'latest' => $request->user()->notifications()->latest()->limit(10)->get(),
+        ]);
+    }
+}

app/Modules/Core/Controllers/ProfileController.php

@@ -4,6 +4,7 @@ namespace App\Modules\Core\Controllers;
 
 use App\Http\Controllers\Controller;
 
+use Illuminate\Http\Request;
 use Illuminate\Support\Facades\Hash;
 use Illuminate\Validation\Rules\Password;
 use Inertia\Inertia;

app/Modules/Core/Controllers/RoleController.php

@@ -123,7 +123,7 @@ class RoleController extends Controller
             $role->syncPermissions($validated['permissions']);
         }
 
-        return redirect()->route('roles.index')->with('success', '角色更新成功');
+        return back()->with('success', '角色更新成功');
     }
 
     /**
@@ -151,7 +151,7 @@ class RoleController extends Controller
      */
     private function getGroupedPermissions()
     {
-        $allPermissions = Permission::orderBy('name')->get();
+        $allPermissions = Permission::select('id', 'name', 'guard_name')->orderBy('name')->get();
         $grouped = [];
 
         foreach ($allPermissions as $permission) {
@@ -160,8 +160,13 @@ class RoleController extends Controller
             $action = $parts[1] ?? '';
 
             // 特定權限遷移邏輯
-            if ($permission->name === 'inventory.transfer') {
-                $group = 'warehouses'; // 調撥功能移至倉庫管理下
+            if ($permission->name === 'inventory.view_cost') {
+                $group = 'inventory'; 
+            }
+
+            // 移除不再使用的權限選項
+            if (in_array($permission->name, ['inventory.count', 'inventory.transfer'])) {
+                continue;
             }
 
             if (!isset($grouped[$group])) {
@@ -175,13 +180,29 @@ class RoleController extends Controller
         $groupDefinitions = [
             'products' => '商品資料管理',
             'warehouses' => '倉庫管理',
-            'inventory' => '庫存管理',
+            'inventory' => '庫存資料管理',
+            'inventory_count' => '庫存盤點管理',
+            'inventory_adjust' => '庫存盤調管理',
+            'inventory_transfer' => '庫存調撥管理',
+            'inventory_report' => '庫存報表',
+            'inventory_traceability' => '批號溯源',
             'vendors' => '廠商資料管理',
             'purchase_orders' => '採購單管理',
-            'users' => '使用者管理',
-            'roles' => '角色與權限',
+            'purchase_returns' => '採購退回管理',
+            'goods_receipts' => '進貨單管理',
+            'delivery_notes' => '出貨單管理',
+            'recipes' => '配方管理',
+            'production_orders' => '生產工單管理',
             'utility_fees' => '公共事業費管理',
             'accounting' => '會計報表',
+            'account_payables' => '應付帳款',
+            'sales_imports' => '銷售單匯入管理',
+            'sales_orders' => '銷售訂單管理',
+            'store_requisitions' => '門市叫貨申請',
+            'procurement_analysis' => '採購統計分析',
+            'users' => '使用者管理',
+            'roles' => '角色與權限',
+            'system' => '系統管理',
         ];
 
         $result = [];

app/Modules/Core/Controllers/SystemSettingController.php

@@ -0,0 +1,97 @@
+<?php
+
+namespace App\Modules\Core\Controllers;
+
+use App\Http\Controllers\Controller;
+use App\Modules\Core\Models\SystemSetting;
+use Illuminate\Http\Request;
+use Inertia\Inertia;
+
+class SystemSettingController extends Controller
+{
+    /**
+     * 顯示系統設定頁面
+     */
+    public function index()
+    {
+        $settings = SystemSetting::all()->groupBy('group');
+        
+        return Inertia::render('Admin/Setting/Index', [
+            'settings' => $settings,
+        ]);
+    }
+
+    /**
+     * 更新系統設定
+     */
+    public function update(Request $request)
+    {
+        $validated = $request->validate([
+            'settings' => 'required|array',
+            'settings.*.key' => 'required|string|exists:system_settings,key',
+            'settings.*.value' => 'nullable',
+        ]);
+
+        foreach ($validated['settings'] as $item) {
+            SystemSetting::where('key', $item['key'])->update([
+                'value' => $item['value']
+            ]);
+        }
+
+        // 清除記憶體快取，確保後續讀取拿到最新值
+        SystemSetting::clearCache();
+
+        return redirect()->back()->with('success', '系統設定已更新');
+    }
+
+    /**
+     * 測試發送通知信
+     */
+    public function testNotification(Request $request)
+    {
+        $validated = $request->validate([
+            'settings' => 'required|array',
+            'settings.*.key' => 'required|string',
+            'settings.*.value' => 'nullable|string',
+        ]);
+
+        $settings = collect($validated['settings'])->pluck('value', 'key');
+        
+        $senderEmail = $settings['notification.utility_fee_sender_email'] ?? null;
+        $senderPassword = $settings['notification.utility_fee_sender_password'] ?? null;
+        $recipientEmailsStr = $settings['notification.utility_fee_recipient_emails'] ?? null;
+
+        if (empty($senderEmail) || empty($senderPassword) || empty($recipientEmailsStr)) {
+            return back()->with('error', '請先填寫完整發信帳號、密碼及收件者信箱。');
+        }
+
+        // 動態覆寫應用程式名稱與 SMTP Config
+        $tenantName = tenant('name') ?? config('app.name');
+        config([
+            'app.name' => $tenantName,
+            'mail.mailers.smtp.username' => $senderEmail,
+            'mail.mailers.smtp.password' => $senderPassword,
+            'mail.from.address' => $senderEmail,
+            'mail.from.name' => $tenantName . ' (系統通知)'
+        ]);
+
+        // 清理原先可能的 Mailer 實例，確保使用新的 Config
+        \Illuminate\Support\Facades\Mail::purge();
+
+        // 解析收件者
+        $recipients = array_map('trim', explode(',', $recipientEmailsStr));
+        $validRecipients = array_filter($recipients, fn($e) => filter_var($e, FILTER_VALIDATE_EMAIL));
+        
+        if (empty($validRecipients)) {
+            return back()->with('error', '無效的收件者 Email 格式。');
+        }
+
+        try {
+            \Illuminate\Support\Facades\Mail::to($validRecipients)->send(new \App\Mail\TestNotificationMail());
+            return back()->with('success', '測試信件已成功發送，請檢查收件匣。');
+        } catch (\Exception $e) {
+            return back()->with('error', '測試發信失敗: ' . $e->getMessage());
+        }
+    }
+}
+

app/Modules/Core/Controllers/UserController.php

@@ -18,13 +18,35 @@ class UserController extends Controller
      */
     public function index(Request $request)
     {
-        $perPage = $request->input('per_page', 10);
+        $defaultPerPage = \App\Modules\Core\Models\SystemSetting::getVal('display.per_page', 10);
+        $perPage = $request->input('per_page', $defaultPerPage);
+        
+        if (!in_array((int)$perPage, [10, 20, 50, 100])) {
+            $perPage = $defaultPerPage;
+        }
         $sortBy = $request->input('sort_by', 'id');
         $sortOrder = $request->input('sort_order', 'asc');
         $search = $request->input('search');
-        $roleId = $request->input('role');
 
-        $query = User::with(['roles:id,name,display_name']);
+        $roleId = $request->input('role');
+        $isActive = $request->input('is_active'); // 'all', '1', '0'
+
+        $query = User::query();
+
+        // 隱藏超級管理員：若非 super-admin，則不可看到 super-admin 過往
+        if (!auth()->user()->hasRole('super-admin')) {
+            $query->whereDoesntHave('roles', function ($q) {
+                $q->where('name', 'super-admin');
+            });
+
+            // 預載入角色時也過濾掉 super-admin 標籤
+            $query->with(['roles' => function ($q) {
+                $q->select('id', 'name', 'display_name')
+                  ->where('name', '!=', 'super-admin');
+            }]);
+        } else {
+            $query->with(['roles:id,name,display_name']);
+        }
 
         // 處理搜尋
         if ($search) {
@@ -42,6 +64,11 @@ class UserController extends Controller
             });
         }
 
+        // 處理狀態篩選
+        if ($isActive !== null && $isActive !== 'all') {
+             $query->where('is_active', $isActive === '1' || $isActive === 'true');
+        }
+
          // 處理排序
         if (in_array($sortBy, ['name', 'created_at'])) {
            $query->orderBy($sortBy, $sortOrder);
@@ -50,12 +77,19 @@ class UserController extends Controller
         }
 
         $users = $query->paginate($perPage)->withQueryString();
-        $roles = Role::select('id', 'name', 'display_name')->get();
+        
+        // 只能看到自己權限以下的角色
+        $rolesQuery = Role::select('id', 'name', 'display_name');
+        if (!auth()->user()->hasRole('super-admin')) {
+            $rolesQuery->where('name', '!=', 'super-admin');
+        }
+        $roles = $rolesQuery->get();
 
         return Inertia::render('Admin/User/Index', [
+            'users' => $users,
             'users' => $users,
             'roles' => $roles,
-            'filters' => $request->only(['per_page', 'sort_by', 'sort_order', 'search', 'role']),
+            'filters' => $request->only(['per_page', 'sort_by', 'sort_order', 'search', 'role', 'is_active']),
         ]);
     }
 
@@ -64,7 +98,11 @@ class UserController extends Controller
      */
     public function create()
     {
-        $roles = Role::pluck('display_name', 'name');
+        $rolesQuery = Role::query();
+        if (!auth()->user()->hasRole('super-admin')) {
+            $rolesQuery->where('name', '!=', 'super-admin');
+        }
+        $roles = $rolesQuery->pluck('display_name', 'name');
 
         return Inertia::render('Admin/User/Create', [
             'roles' => $roles
@@ -80,8 +118,10 @@ class UserController extends Controller
             'name' => ['required', 'string', 'max:255'],
             'email' => ['nullable', 'string', 'email', 'max:255', 'unique:users'],
             'username' => ['required', 'string', 'max:255', 'unique:users'],
+
             'password' => ['required', 'string', 'min:8', 'confirmed'],
             'roles' => ['array'], 
+            'is_active' => ['boolean'],
         ], [
             'password.required' => '請輸入密碼',
             'password.min' => '密碼長度至少需 :min 個字元',
@@ -92,10 +132,16 @@ class UserController extends Controller
             'name' => $validated['name'],
             'email' => $validated['email'],
             'username' => $validated['username'],
+
             'password' => Hash::make($validated['password']),
+            'is_active' => $request->boolean('is_active', true),
         ]);
 
         if (!empty($validated['roles'])) {
+            // 安全檢查：非 super-admin 不能賦予 super-admin 角色
+            if (!auth()->user()->hasRole('super-admin') && in_array('super-admin', $validated['roles'])) {
+                abort(403, '您沒有權限指派系統管理員角色');
+            }
             $user->syncRoles($validated['roles']);
 
             // 更新 'created' 紀錄以包含角色資訊
@@ -123,7 +169,17 @@ class UserController extends Controller
     public function edit(string $id)
     {
         $user = User::with('roles')->findOrFail($id);
-        $roles = Role::get(['id', 'name', 'display_name']); 
+
+        // 安全檢查：非 super-admin 不能編輯 super-admin
+        if ($user->hasRole('super-admin') && !auth()->user()->hasRole('super-admin')) {
+            abort(403, '您沒有權限編輯系統管理員');
+        }
+
+        $rolesQuery = Role::select('id', 'name', 'display_name');
+        if (!auth()->user()->hasRole('super-admin')) {
+            $rolesQuery->where('name', '!=', 'super-admin');
+        }
+        $roles = $rolesQuery->get(); 
 
         return Inertia::render('Admin/User/Edit', [
             'user' => $user,
@@ -139,12 +195,19 @@ class UserController extends Controller
     {
         $user = User::findOrFail($id);
         
+        // 安全檢查：非 super-admin 不能更新 super-admin
+        if ($user->hasRole('super-admin') && !auth()->user()->hasRole('super-admin')) {
+            abort(403, '您沒有權限編輯系統管理員');
+        }
+        
         $validated = $request->validate([
             'name' => ['required', 'string', 'max:255'],
             'email' => ['nullable', 'string', 'email', 'max:255', Rule::unique('users')->ignore($user->id)],
             'username' => ['required', 'string', 'max:255', Rule::unique('users')->ignore($user->id)],
+
             'password' => ['nullable', 'string', 'min:8', 'confirmed'],
             'roles' => ['array'],
+            'is_active' => ['boolean'],
         ], [
             'password.min' => '密碼長度至少需 :min 個字元',
             'password.confirmed' => '密碼確認不符',
@@ -157,10 +220,6 @@ class UserController extends Controller
             'username' => $validated['username'],
         ];
 
-        if (!empty($validated['password'])) {
-            $userData['password'] = Hash::make($validated['password']);
-        }
-
         $user->fill($userData);
 
         // 捕捉變更屬性以進行手動記錄
@@ -179,6 +238,11 @@ class UserController extends Controller
         // 2. 處理角色
         $roleChanges = null;
         if (isset($validated['roles'])) {
+            // 安全檢查：非 super-admin 不能賦予 super-admin 角色
+            if (!auth()->user()->hasRole('super-admin') && in_array('super-admin', $validated['roles'])) {
+                abort(403, '您沒有權限指派系統管理員角色');
+            }
+
             $oldRoles = $user->roles()->pluck('display_name')->join(', ');
             $user->syncRoles($validated['roles']);
             $newRoles = $user->roles()->pluck('display_name')->join(', ');
@@ -230,6 +294,11 @@ class UserController extends Controller
     {
         $user = User::findOrFail($id);
 
+        // 安全檢查：非 super-admin 不能刪除 super-admin
+        if ($user->hasRole('super-admin') && !auth()->user()->hasRole('super-admin')) {
+            abort(403, '您沒有權限刪除系統管理員');
+        }
+
         if ($user->hasRole('super-admin')) {
              return back()->with('error', '無法刪除超級管理員帳號');
         }
@@ -240,6 +309,46 @@ class UserController extends Controller
 
         $user->delete();
 
-        return redirect()->route('users.index')->with('success', '使用者已刪除');
+        return redirect()->route('users.index')->with('success', "使用者「{$user->name}」已刪除");
+    }
+
+    /**
+     * 切換使用者啟用/停用狀態
+     */
+    public function toggleActive(string $id)
+    {
+        $user = User::findOrFail($id);
+
+        // 安全檢查：不能停用自己
+        if ($user->id === auth()->id() && $user->is_active) {
+            return back()->with('error', '無法停用自己的帳號');
+        }
+
+        // 安全檢查：非 super-admin 不能停用 super-admin
+        if ($user->hasRole('super-admin') && !auth()->user()->hasRole('super-admin')) {
+            abort(403, '您沒有權限變更系統管理員狀態');
+        }
+
+        $oldStatus = $user->is_active;
+        $user->is_active = !$oldStatus;
+        $user->save();
+
+        // 記錄活動
+        activity()
+            ->performedOn($user)
+            ->causedBy(auth()->user())
+            ->event('updated')
+            ->withProperties([
+                'attributes' => ['is_active' => $user->is_active],
+                'old' => ['is_active' => $oldStatus],
+                'snapshot' => [
+                    'name' => $user->name,
+                    'username' => $user->username,
+                ]
+            ])
+            ->log('updated');
+
+        $statusText = $user->is_active ? '已啟用' : '已停用';
+        return back()->with('success', "使用者「{$user->name}」{$statusText}");
     }
 }

app/Modules/Core/Models/SystemSetting.php

@@ -0,0 +1,61 @@
+<?php
+
+namespace App\Modules\Core\Models;
+
+use Illuminate\Database\Eloquent\Model;
+
+class SystemSetting extends Model
+{
+    protected $fillable = [
+        'group',
+        'key',
+        'value',
+        'type',
+        'description',
+    ];
+
+    /**
+     * 同請求內的記憶體快取，避免重複查詢 DB
+     * PHP 請求結束後自動釋放，無需額外處理失效
+     */
+    protected static array $cache = [];
+
+    /**
+     * 取得特定設定值（含記憶體快取）
+     */
+    public static function getVal(string $key, $default = null)
+    {
+        if (array_key_exists($key, static::$cache)) {
+            return static::$cache[$key];
+        }
+
+        $setting = self::where('key', $key)->first();
+        
+        if (!$setting) {
+            static::$cache[$key] = $default;
+            return $default;
+        }
+
+        $value = $setting->value;
+
+        // 根據 type 進行類別轉換
+        $resolved = match ($setting->type) {
+            'integer', 'number' => (int) $value,
+            'boolean', 'bool'   => filter_var($value, FILTER_VALIDATE_BOOLEAN),
+            'json', 'array'     => json_decode($value, true),
+            default             => $value,
+        };
+
+        static::$cache[$key] = $resolved;
+
+        return $resolved;
+    }
+
+    /**
+     * 清除記憶體快取（儲存設定後應呼叫）
+     */
+    public static function clearCache(): void
+    {
+        static::$cache = [];
+    }
+}

app/Modules/Core/Models/User.php

@@ -10,10 +10,12 @@ use Spatie\Permission\Traits\HasRoles;
 use Spatie\Activitylog\Traits\LogsActivity;
 use Spatie\Activitylog\LogOptions;
 
+use Laravel\Sanctum\HasApiTokens;
+
 class User extends Authenticatable
 {
     /** @use HasFactory<\Database\Factories\UserFactory> */
-    use HasFactory, Notifiable, HasRoles, LogsActivity;
+    use HasFactory, Notifiable, HasRoles, LogsActivity, HasApiTokens;
 
     /**
      * 可批量賦值的屬性。
@@ -35,6 +37,7 @@ class User extends Authenticatable
         'email',
         'username',
         'password',
+        'is_active',
     ];
 
     /**
@@ -56,7 +59,9 @@ class User extends Authenticatable
     {
         return [
             'email_verified_at' => 'datetime',
+
             'password' => 'hashed',
+            'is_active' => 'boolean',
         ];
     }
 

app/Modules/Core/Routes/web.php

@@ -7,6 +7,7 @@ use App\Modules\Core\Controllers\ProfileController;
 use App\Modules\Core\Controllers\RoleController;
 use App\Modules\Core\Controllers\UserController;
 use App\Modules\Core\Controllers\ActivityLogController;
+use App\Modules\Core\Controllers\SystemSettingController;
 
 // 登入/登出路由
 Route::get('/login', [LoginController::class, 'show'])->name('login');
@@ -14,6 +15,11 @@ Route::post('/login', [LoginController::class, 'store']);
 Route::post('/logout', [LoginController::class, 'destroy'])->name('logout');
 
 Route::middleware('auth')->group(function () {
+    // 通知
+    Route::post('/notifications/read-all', [\App\Modules\Core\Controllers\NotificationController::class, 'markAllAsRead'])->name('notifications.read-all');
+    Route::post('/notifications/{id}/read', [\App\Modules\Core\Controllers\NotificationController::class, 'markAsRead'])->name('notifications.read');
+    Route::get('/notifications/check', [\App\Modules\Core\Controllers\NotificationController::class, 'check'])->name('notifications.check');
+
     // 儀表板 - 所有登入使用者皆可存取
     Route::get('/', [DashboardController::class, 'index'])->name('dashboard');
 
@@ -43,6 +49,7 @@ Route::middleware('auth')->group(function () {
             });
             Route::get('/users/{user}/edit', [UserController::class, 'edit'])->middleware('permission:users.edit')->name('users.edit');
             Route::put('/users/{user}', [UserController::class, 'update'])->middleware('permission:users.edit')->name('users.update');
+            Route::patch('/users/{user}/toggle-active', [UserController::class, 'toggleActive'])->middleware('permission:users.activate')->name('users.toggle-active');
             Route::delete('/users/{user}', [UserController::class, 'destroy'])->middleware('permission:users.delete')->name('users.destroy');
         });
 
@@ -50,5 +57,11 @@ Route::middleware('auth')->group(function () {
             Route::get('/activity-logs', [ActivityLogController::class, 'index'])->name('activity-logs.index');
         });
 
+        Route::middleware('permission:system.settings.view')->group(function () {
+            Route::get('/settings', [SystemSettingController::class, 'index'])->name('settings.index');
+            Route::post('/settings', [SystemSettingController::class, 'update'])->name('settings.update');
+            Route::post('/settings/test-notification', [SystemSettingController::class, 'testNotification'])->name('settings.test-notification');
+        });
+
     });
 });

app/Modules/Core/Services/CoreService.php

@@ -16,7 +16,7 @@ class CoreService implements CoreServiceInterface
      */
     public function getUsersByIds(array $ids): Collection
     {
-        return User::whereIn('id', $ids)->get();
+        return User::select('id', 'name')->whereIn('id', $ids)->get();
     }
 
     /**
@@ -37,7 +37,7 @@ class CoreService implements CoreServiceInterface
      */
     public function getAllUsers(): Collection
     {
-        return User::all();
+        return User::select('id', 'name')->get();
     }
 
     public function ensureSystemUserExists()

app/Modules/Finance/Controllers/AccountPayableController.php

@@ -0,0 +1,160 @@
+<?php
+
+namespace App\Modules\Finance\Controllers;
+
+use App\Http\Controllers\Controller;
+use App\Modules\Finance\Models\AccountPayable;
+use Illuminate\Http\Request;
+use Inertia\Inertia;
+
+use App\Modules\Procurement\Contracts\ProcurementServiceInterface;
+use App\Modules\Inventory\Contracts\InventoryServiceInterface;
+
+class AccountPayableController extends Controller
+{
+    protected $procurementService;
+    protected $inventoryService;
+
+    public function __construct(
+        ProcurementServiceInterface $procurementService,
+        InventoryServiceInterface $inventoryService
+    ) {
+        $this->procurementService = $procurementService;
+        $this->inventoryService = $inventoryService;
+    }
+    /**
+     * Display a listing of the resource.
+     */
+    public function index(Request $request)
+    {
+        $query = AccountPayable::with(['creator']);
+
+        // 關鍵字搜尋 (單號、供應商名稱)
+        if ($request->filled('search')) {
+            $search = $request->search;
+            
+            // 透過 ProcurementService 查詢符合關鍵字的 Vendor IDs
+            $matchedVendors = $this->procurementService->searchVendors($search);
+            $vendorIds = $matchedVendors->pluck('id')->toArray();
+            
+            $query->where(function ($q) use ($search, $vendorIds) {
+                $q->where('document_number', 'like', "%{$search}%");
+                if (!empty($vendorIds)) {
+                    $q->orWhereIn('vendor_id', $vendorIds);
+                }
+            });
+        }
+
+        // 狀態過濾
+        if ($request->filled('status') && $request->status !== 'all') {
+            $query->where('status', $request->status);
+        }
+        
+        // 供應商過濾
+        if ($request->filled('vendor_id') && $request->vendor_id !== 'all') {
+            $query->where('vendor_id', $request->vendor_id);
+        }
+
+        // 日期區間過濾
+        if ($request->filled('date_start')) {
+            $query->where('due_date', '>=', $request->date_start);
+        }
+        if ($request->filled('date_end')) {
+            $query->where('due_date', '<=', $request->date_end);
+        }
+
+        $defaultPerPage = \App\Modules\Core\Models\SystemSetting::getVal('display.per_page', 10);
+        $perPage = $request->input('per_page', $defaultPerPage);
+        if (!in_array((int)$perPage, [10, 20, 50, 100])) {
+            $perPage = $defaultPerPage;
+        }
+        $payables = $query->latest()->paginate($perPage)->withQueryString();
+
+        // Manual Hydration for Vendors
+        $allVendorIds = collect($payables->items())->pluck('vendor_id')->unique()->filter()->toArray();
+        $vendorsMap = $this->procurementService->getVendorsByIds($allVendorIds)->keyBy('id');
+        
+        $payables->getCollection()->transform(function ($item) use ($vendorsMap) {
+            $item->vendor = $vendorsMap->get($item->vendor_id);
+            return $item;
+        });
+
+        $vendors = $this->procurementService->getAllVendors();
+
+        return Inertia::render('AccountPayable/Index', [
+            'payables' => $payables,
+            'filters' => $request->all(['search', 'status', 'vendor_id', 'date_start', 'date_end', 'per_page']),
+            'vendors' => $vendors,
+        ]);
+    }
+
+    /**
+     * Display the specified resource.
+     */
+    public function show(AccountPayable $accountPayable)
+    {
+        $accountPayable->load(['creator']);
+        
+        if ($accountPayable->vendor_id) {
+            $accountPayable->vendor = $this->procurementService->getVendorsByIds([$accountPayable->vendor_id])->first();
+        }
+
+        // 嘗試加載來源單據資訊 (目前支援 goods_receipt)
+        $sourceDocumentCode = null;
+        if ($accountPayable->source_document_type === 'goods_receipt') {
+            $receiptData = app(\App\Modules\Inventory\Contracts\GoodsReceiptServiceInterface::class)
+                ->getGoodsReceiptData($accountPayable->source_document_id);
+            if ($receiptData) {
+                $sourceDocumentCode = $receiptData['code'] ?? null;
+            }
+        }
+
+        return Inertia::render('AccountPayable/Show', [
+            // 將 model 轉換成 array 加入額外資訊
+            'payable' => array_merge($accountPayable->toArray(), ['source_document_code' => $sourceDocumentCode]),
+        ]);
+    }
+
+    /**
+     * 更新發票資訊
+     */
+    public function updateInvoice(Request $request, AccountPayable $accountPayable)
+    {
+        $validated = $request->validate([
+            'invoice_number' => 'nullable|string|max:50',
+            'invoice_date' => 'nullable|date',
+        ]);
+
+        $accountPayable->update([
+            'invoice_number' => $validated['invoice_number'],
+            'invoice_date' => $validated['invoice_date'],
+        ]);
+
+        return back()->with('success', '發票資訊已更新');
+    }
+
+    /**
+     * 標記已付款
+     */
+    public function pay(Request $request, AccountPayable $accountPayable)
+    {
+        $validated = $request->validate([
+            'payment_method' => 'required|string|max:50',
+            'paid_at' => 'required|date',
+            'payment_note' => 'nullable|string|max:255',
+        ]);
+
+        if ($accountPayable->status === AccountPayable::STATUS_PAID) {
+            return back()->with('error', '該帳款已經標記為已付款');
+        }
+
+        $accountPayable->update([
+            'status' => AccountPayable::STATUS_PAID,
+            'payment_method' => $validated['payment_method'],
+            'paid_at' => $validated['paid_at'],
+            'payment_note' => $validated['payment_note'],
+        ]);
+
+        return back()->with('success', '帳款已成功標記為已付款');
+    }
+}

app/Modules/Finance/Controllers/AccountingReportController.php

@@ -27,7 +27,11 @@ class AccountingReportController extends Controller
         $allRecords = $reportData['records'];
 
         // 3. Manual Pagination
-        $perPage = $request->input('per_page', 10);
+        $defaultPerPage = \App\Modules\Core\Models\SystemSetting::getVal('display.per_page', 10);
+        $perPage = $request->input('per_page', $defaultPerPage);
+        if (!in_array((int)$perPage, [10, 20, 50, 100])) {
+            $perPage = $defaultPerPage;
+        }
         $page = $request->input('page', 1);
         $offset = ($page - 1) * $perPage;
 
@@ -65,14 +69,25 @@ class AccountingReportController extends Controller
         }
 
         $exportData = $allRecords->map(function ($record) {
+            $taxAmount = (float)($record['tax_amount'] ?? 0);
+            $totalAmount = (float)($record['amount'] ?? 0);
+            $untaxedAmount = $totalAmount - $taxAmount;
+
             return [
                 $record['date'],
                 $record['source'],
                 $record['category'],
                 $record['item'],
                 $record['reference'],
-                $record['invoice_number'],
-                $record['amount'],
+                $record['invoice_date'] ?? '-',
+                $record['invoice_number'] ?? '-',
+                $untaxedAmount,
+                $taxAmount,
+                $totalAmount,
+                $record['payment_method'] ?? '-',
+                $record['payment_note'] ?? '-',
+                $record['remarks'] ?? '-',
+                $record['status'] ?? '-',
             ];
         });
 
@@ -87,7 +102,11 @@ class AccountingReportController extends Controller
             // BOM for Excel compatibility with UTF-8
             fprintf($file, chr(0xEF).chr(0xBB).chr(0xBF));
             
-            fputcsv($file, ['日期', '來源', '類別', '項目', '參考單號', '發票號碼', '金額']);
+            fputcsv($file, [
+                '日期', '來源', '類別', '項目', '參考單號', 
+                '發票日期', '發票號碼', '未稅金額', '稅額', '總金額', 
+                '付款方式', '付款備註', '內部備註', '狀態'
+            ]);
 
             foreach ($exportData as $row) {
                 fputcsv($file, $row);

app/Modules/Finance/Controllers/UtilityFeeController.php

@@ -4,8 +4,10 @@ namespace App\Modules\Finance\Controllers;
 
 use App\Http\Controllers\Controller;
 use App\Modules\Finance\Models\UtilityFee;
+use App\Modules\Finance\Models\UtilityFeeAttachment;
 use App\Modules\Finance\Contracts\FinanceServiceInterface;
 use Illuminate\Http\Request;
+use Illuminate\Support\Facades\Storage;
 use Inertia\Inertia;
 
 class UtilityFeeController extends Controller
@@ -34,13 +36,16 @@ class UtilityFeeController extends Controller
     public function store(Request $request)
     {
         $validated = $request->validate([
-            'transaction_date' => 'required|date',
+            'transaction_date' => 'nullable|date',
+            'due_date' => 'required|date',
             'category' => 'required|string|max:255',
             'amount' => 'required|numeric|min:0',
             'invoice_number' => 'nullable|string|max:255',
             'description' => 'nullable|string',
         ]);
 
+        $validated['payment_status'] = $this->determineStatus($validated);
+
         $fee = UtilityFee::create($validated);
 
         activity()
@@ -55,13 +60,16 @@ class UtilityFeeController extends Controller
     public function update(Request $request, UtilityFee $utility_fee)
     {
         $validated = $request->validate([
-            'transaction_date' => 'required|date',
+            'transaction_date' => 'nullable|date',
+            'due_date' => 'required|date',
             'category' => 'required|string|max:255',
             'amount' => 'required|numeric|min:0',
             'invoice_number' => 'nullable|string|max:255',
             'description' => 'nullable|string',
         ]);
 
+        $validated['payment_status'] = $this->determineStatus($validated);
+
         $utility_fee->update($validated);
 
         activity()
@@ -73,6 +81,22 @@ class UtilityFeeController extends Controller
         return redirect()->back();
     }
 
+    /**
+     * 判定繳費狀態
+     */
+    private function determineStatus(array $data): string
+    {
+        if (!empty($data['transaction_date'])) {
+            return UtilityFee::STATUS_PAID;
+        }
+
+        if (!empty($data['due_date']) && now()->startOfDay()->gt(\Illuminate\Support\Carbon::parse($data['due_date']))) {
+            return UtilityFee::STATUS_OVERDUE;
+        }
+
+        return UtilityFee::STATUS_PENDING;
+    }
+
     public function destroy(UtilityFee $utility_fee)
     {
         activity()
@@ -81,8 +105,82 @@ class UtilityFeeController extends Controller
             ->event('deleted')
             ->log('deleted');
 
+        // 刪除實體檔案 (如果 cascade 沒處理或是想要手動清理)
+        foreach ($utility_fee->attachments as $attachment) {
+            Storage::disk('public')->delete($attachment->file_path);
+        }
+
         $utility_fee->delete();
         
         return redirect()->back();
     }
+
+    /**
+     * 獲取附件列表
+     */
+    public function attachments(UtilityFee $utility_fee)
+    {
+        return response()->json([
+            'attachments' => $utility_fee->attachments()->orderBy('created_at', 'desc')->get()
+        ]);
+    }
+
+    /**
+     * 上傳附件
+     */
+    public function uploadAttachment(Request $request, UtilityFee $utility_fee)
+    {
+        $request->validate([
+            'file' => 'required|file|mimes:jpeg,jpg,png,webp,pdf|max:2048', // 2MB
+        ]);
+
+        // 檢查數量限制 (最多 3 張)
+        if ($utility_fee->attachments()->count() >= 3) {
+            return response()->json(['message' => '附件數量已達上限 (最多 3 個)'], 422);
+        }
+
+        $file = $request->file('file');
+        $path = $file->store("utility-fee-attachments/{$utility_fee->id}", 'public');
+
+        $attachment = $utility_fee->attachments()->create([
+            'file_path' => $path,
+            'original_name' => $file->getClientOriginalName(),
+            'mime_type' => $file->getMimeType(),
+            'size' => $file->getSize(),
+        ]);
+
+        activity()
+            ->performedOn($utility_fee)
+            ->causedBy(auth()->user())
+            ->event('attachment_uploaded')
+            ->log("uploaded attachment: {$attachment->original_name}");
+
+        return response()->json([
+            'message' => '上傳成功',
+            'attachment' => $attachment
+        ]);
+    }
+
+    /**
+     * 刪除附件
+     */
+    public function deleteAttachment(UtilityFee $utility_fee, UtilityFeeAttachment $attachment)
+    {
+        // 確保附件屬於該費用
+        if ($attachment->utility_fee_id !== $utility_fee->id) {
+            abort(403);
+        }
+
+        Storage::disk('public')->delete($attachment->file_path);
+        
+        $attachment->delete();
+
+        activity()
+            ->performedOn($utility_fee)
+            ->causedBy(auth()->user())
+            ->event('attachment_deleted')
+            ->log("deleted attachment: {$attachment->original_name}");
+
+        return response()->json(['message' => '刪除成功']);
+    }
 }

app/Modules/Finance/FinanceServiceProvider.php

@@ -15,6 +15,9 @@ class FinanceServiceProvider extends ServiceProvider
 
     public function boot(): void
     {
-        //
+        \Illuminate\Support\Facades\Event::listen(
+            \App\Modules\Inventory\Events\GoodsReceiptApprovedEvent::class,
+            \App\Modules\Finance\Listeners\CreateAccountPayableFromGoodsReceipt::class
+        );
     }
 }

app/Modules/Finance/Listeners/CreateAccountPayableFromGoodsReceipt.php

@@ -0,0 +1,41 @@
+<?php
+
+namespace App\Modules\Finance\Listeners;
+
+use App\Modules\Inventory\Events\GoodsReceiptApprovedEvent;
+use App\Modules\Finance\Services\AccountPayableService;
+use Illuminate\Contracts\Queue\ShouldQueue;
+use Illuminate\Queue\InteractsWithQueue;
+use Illuminate\Support\Facades\Log;
+
+class CreateAccountPayableFromGoodsReceipt
+{
+    protected AccountPayableService $accountPayableService;
+
+    /**
+     * Create the event listener.
+     */
+    public function __construct(AccountPayableService $accountPayableService)
+    {
+        $this->accountPayableService = $accountPayableService;
+    }
+
+    /**
+     * Handle the event.
+     */
+    public function handle(GoodsReceiptApprovedEvent $event): void
+    {
+        try {
+            // 目前使用系統預設 User ID 或 0 作為自動生成的建立者，若能從 event 取得更好
+            $userId = auth()->id() ?? 1; // 假設 1 為系統管理員或預設使用者
+            
+            $this->accountPayableService->createFromGoodsReceipt($event->goodsReceiptId, $userId);
+            
+            Log::info("已成功為進貨單 ID: {$event->goodsReceiptId} 建立應付帳款");
+        } catch (\Exception $e) {
+            Log::error("建立應付帳款失敗 (進貨單 ID: {$event->goodsReceiptId}): " . $e->getMessage());
+            // 根據需求決定是否拋出 exception 或只記錄 log
+            throw $e;
+        }
+    }
+}

app/Modules/Finance/Models/AccountPayable.php

@@ -0,0 +1,54 @@
+<?php
+
+namespace App\Modules\Finance\Models;
+
+use Illuminate\Database\Eloquent\Factories\HasFactory;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\BelongsTo;
+
+class AccountPayable extends Model
+{
+    use HasFactory;
+
+    public const STATUS_PENDING = 'pending';
+    public const STATUS_PARTIALLY_PAID = 'partially_paid';
+    public const STATUS_PAID = 'paid';
+    public const STATUS_CANCELLED = 'cancelled';
+
+    protected $fillable = [
+        'vendor_id',
+        'source_document_type',
+        'source_document_id',
+        'document_number',
+        'total_amount',
+        'tax_amount',
+        'status',
+        'due_date',
+        'invoice_number',
+        'invoice_date',
+        'paid_at',
+        'payment_method',
+        'payment_note',
+        'remarks',
+        'created_by',
+    ];
+
+    protected $casts = [
+        'total_amount' => 'decimal:2',
+        'tax_amount' => 'decimal:2',
+        'due_date' => 'date',
+        'invoice_date' => 'date',
+        'paid_at' => 'datetime',
+    ];
+
+    // vendor 關聯移至 service (跨模組)
+
+    /**
+     * 關聯：建立者
+     * @return BelongsTo
+     */
+    public function creator(): BelongsTo
+    {
+        return $this->belongsTo(\App\Modules\Core\Models\User::class, 'created_by');
+    }
+}

app/Modules/Finance/Models/UtilityFee.php

@@ -7,29 +7,47 @@ use Illuminate\Database\Eloquent\Model;
 
 class UtilityFee extends Model
 {
-    /** @use HasFactory<\Database\Factories\UtilityFeeFactory> */
     use HasFactory;
 
+    /**
+     * 此公共事業費的附件
+     */
+    public function attachments()
+    {
+        return $this->hasMany(UtilityFeeAttachment::class);
+    }
+
+    // 狀態常數
+    const STATUS_PENDING = 'pending';
+    const STATUS_PAID = 'paid';
+    const STATUS_OVERDUE = 'overdue';
+
     protected $fillable = [
         'transaction_date',
+        'due_date',
         'category',
         'amount',
+        'payment_status',
         'invoice_number',
         'description',
     ];
 
     protected $casts = [
-        'transaction_date' => 'date',
+        'transaction_date' => 'date:Y-m-d',
+        'due_date' => 'date:Y-m-d',
         'amount' => 'decimal:2',
     ];
 
     public function tapActivity(\Spatie\Activitylog\Contracts\Activity $activity, string $eventName)
     {
-        $activity->properties = $activity->properties->put('snapshot', [
-            'transaction_date' => $this->transaction_date->format('Y-m-d'),
+        $snapshot = [
+            'transaction_date' => $this->transaction_date?->format('Y-m-d'),
+            'due_date' => $this->due_date?->format('Y-m-d'),
             'category' => $this->category,
             'amount' => $this->amount,
+            'payment_status' => $this->payment_status,
             'invoice_number' => $this->invoice_number,
-        ]);
+        ];
+        $activity->properties = $activity->properties->put('snapshot', $snapshot);
     }
 }

app/Modules/Finance/Models/UtilityFeeAttachment.php

@@ -0,0 +1,36 @@
+<?php
+
+namespace App\Modules\Finance\Models;
+
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\BelongsTo;
+use Illuminate\Support\Facades\Storage;
+
+class UtilityFeeAttachment extends Model
+{
+    protected $fillable = [
+        'utility_fee_id',
+        'file_path',
+        'original_name',
+        'mime_type',
+        'size',
+    ];
+
+    protected $appends = ['url'];
+
+    /**
+     * 附件所属的公共事業費
+     */
+    public function utilityFee(): BelongsTo
+    {
+        return $this->belongsTo(UtilityFee::class);
+    }
+
+    /**
+     * 獲取附件的全路徑 URL
+     */
+    public function getUrlAttribute()
+    {
+        return tenant_asset($this->file_path);
+    }
+}

app/Modules/Finance/Routes/web.php

@@ -4,7 +4,23 @@ use Illuminate\Support\Facades\Route;
 use App\Modules\Finance\Controllers\UtilityFeeController;
 use App\Modules\Finance\Controllers\AccountingReportController;
 
+use App\Modules\Finance\Controllers\AccountPayableController;
+
 Route::middleware('auth')->group(function () {
+    // 應付帳款
+    Route::group(['prefix' => 'finance'], function () {
+        Route::middleware('permission:account_payables.view')->group(function () {
+            Route::get('/account-payables', [AccountPayableController::class, 'index'])->name('account-payables.index');
+            Route::get('/account-payables/{accountPayable}', [AccountPayableController::class, 'show'])->name('account-payables.show');
+        });
+        Route::middleware('permission:account_payables.edit')->group(function () {
+            Route::post('/account-payables/{accountPayable}/invoice', [AccountPayableController::class, 'updateInvoice'])->name('account-payables.invoice');
+        });
+        Route::middleware('permission:account_payables.pay')->group(function () {
+            Route::post('/account-payables/{accountPayable}/pay', [AccountPayableController::class, 'pay'])->name('account-payables.pay');
+        });
+    });
+
     // 公共事業費管理
     Route::middleware('permission:utility_fees.view')->group(function () {
         Route::get('/utility-fees', [UtilityFeeController::class, 'index'])->name('utility-fees.index');
@@ -14,6 +30,11 @@ Route::middleware('auth')->group(function () {
     });
     Route::middleware('permission:utility_fees.edit')->group(function () {
         Route::put('/utility-fees/{utility_fee}', [UtilityFeeController::class, 'update'])->name('utility-fees.update');
+        
+        // 附件管理 (Ajax)
+        Route::get('/utility-fees/{utility_fee}/attachments', [UtilityFeeController::class, 'attachments'])->name('utility-fees.attachments');
+        Route::post('/utility-fees/{utility_fee}/attachments', [UtilityFeeController::class, 'uploadAttachment'])->name('utility-fees.upload-attachment');
+        Route::delete('/utility-fees/{utility_fee}/attachments/{attachment}', [UtilityFeeController::class, 'deleteAttachment'])->name('utility-fees.delete-attachment');
     });
     Route::middleware('permission:utility_fees.delete')->group(function () {
         Route::delete('/utility-fees/{utility_fee}', [UtilityFeeController::class, 'destroy'])->name('utility-fees.destroy');

app/Modules/Finance/Services/AccountPayableService.php

@@ -0,0 +1,86 @@
+<?php
+
+namespace App\Modules\Finance\Services;
+
+use App\Modules\Finance\Models\AccountPayable;
+use Illuminate\Support\Facades\DB;
+use App\Modules\Inventory\Contracts\GoodsReceiptServiceInterface;
+
+class AccountPayableService
+{
+    protected GoodsReceiptServiceInterface $goodsReceiptService;
+
+    public function __construct(GoodsReceiptServiceInterface $goodsReceiptService)
+    {
+        $this->goodsReceiptService = $goodsReceiptService;
+    }
+
+    /**
+     * 根據進貨單建立應付帳款
+     * 
+     * @param int $goodsReceiptId
+     * @param int $userId 執行操作的使用者 ID
+     * @return AccountPayable
+     * @throws \Exception
+     */
+    public function createFromGoodsReceipt(int $goodsReceiptId, int $userId): AccountPayable
+    {
+        // 透過 Contract 取得 Inventory 模組的資料，避免直接依賴 Model
+        $receiptData = $this->goodsReceiptService->getGoodsReceiptData($goodsReceiptId);
+
+        if (!$receiptData) {
+            throw new \Exception("找不到對應的進貨單資料 (ID: {$goodsReceiptId})");
+        }
+
+        // 檢查是否已經建立過（密等性）
+        $existingAp = AccountPayable::where('source_document_type', 'goods_receipt')
+            ->where('source_document_id', $goodsReceiptId)
+            ->first();
+
+        if ($existingAp) {
+            return $existingAp;
+        }
+
+        return DB::transaction(function () use ($receiptData, $userId) {
+            $ap = AccountPayable::create([
+                'vendor_id' => $receiptData['vendor_id'],
+                'source_document_type' => 'goods_receipt',
+                'source_document_id' => $receiptData['id'],
+                'document_number' => $this->generateApNumber(),
+                'total_amount' => collect($receiptData['items'] ?? [])->sum('total_amount'),
+                'tax_amount' => 0, // 假設後續會實作稅額計算，目前預設為 0
+                'status' => AccountPayable::STATUS_PENDING,
+                // 設定應付日期，預設為進貨後天數 (由系統設定決定，預設 30 天)
+                'due_date' => now()->addDays(\App\Modules\Core\Models\SystemSetting::getVal('finance.ap_payment_days', 30))->toDateString(),
+                'created_by' => $userId,
+                'remarks' => "由進貨單 {$receiptData['code']} 自動生成",
+            ]);
+
+            return $ap;
+        });
+    }
+
+    /**
+     * 產生應付帳款單號
+     */
+    protected function generateApNumber(): string
+    {
+        $prefix = 'AP-' . date('Ymd') . '-';
+        $lastPrefix = "{$prefix}%";
+        
+        $latest = AccountPayable::where('document_number', 'like', $lastPrefix)
+            ->orderBy('document_number', 'desc')
+            ->lockForUpdate()
+            ->first();
+
+        if (!$latest) {
+            return $prefix . '01';
+        }
+
+        $parts = explode('-', $latest->document_number);
+        $lastNumber = intval(end($parts));
+        $newNumber = str_pad((string)($lastNumber + 1), 2, '0', STR_PAD_LEFT);
+        
+        return $prefix . $newNumber;
+    }
+}

app/Modules/Finance/Services/FinanceService.php

@@ -19,23 +19,48 @@ class FinanceService implements FinanceServiceInterface
 
     public function getAccountingReportData(string $start, string $end): array
     {
-        // 1. 獲取採購單資料
-        $purchaseOrders = $this->procurementService->getPurchaseOrdersByDate($start, $end)
-            ->map(function ($po) {
-                return [
-                    'id' => 'PO-' . $po->id,
-                    'date' => Carbon::parse($po->created_at)->timezone(config('app.timezone'))->toDateString(),
-                    'source' => '採購單',
-                    'category' => '進貨支出',
-                    'item' => $po->vendor->name ?? '未知廠商',
-                    'reference' => $po->code,
-                    'invoice_number' => $po->invoice_number,
-                    'amount' => (float)$po->grand_total,
-                ];
-            });
+        // 1. 獲取應付帳款資料 (已付款)
+        $accountPayables = \App\Modules\Finance\Models\AccountPayable::where('status', \App\Modules\Finance\Models\AccountPayable::STATUS_PAID)
+            ->whereNotNull('paid_at')
+            ->whereBetween('paid_at', [$start, $end])
+            ->get();
 
-        // 2. 獲取公共事業費 (注意：目前資料表欄位為 transaction_date)
-        $utilityFees = UtilityFee::whereBetween('transaction_date', [$start, $end])
+        // 取得供應商資料 (Manual Hydration)
+        $vendorIds = $accountPayables->pluck('vendor_id')->unique()->filter()->toArray();
+        $vendorsMap = $this->procurementService->getVendorsByIds($vendorIds)->keyBy('id');
+
+        // 付款方式對映
+        $paymentMethodMap = [
+            'cash' => '現金',
+            'bank_transfer' => '銀行轉帳',
+            'check' => '支票',
+            'credit_card' => '信用卡',
+        ];
+
+        $payableRecords = $accountPayables->map(function ($ap) use ($vendorsMap, $paymentMethodMap) {
+            $vendorName = isset($vendorsMap[$ap->vendor_id]) ? $vendorsMap[$ap->vendor_id]->name : '未知廠商';
+            $mappedPaymentMethod = $paymentMethodMap[$ap->payment_method] ?? $ap->payment_method;
+            return [
+                'id' => 'AP-' . $ap->id,
+                'date' => Carbon::parse($ap->paid_at)->timezone(config('app.timezone'))->toDateString(),
+                'source' => '應付帳款',
+                'category' => '進貨支出',
+                'item' => $vendorName,
+                'reference' => $ap->document_number,
+                'invoice_date' => $ap->invoice_date ? $ap->invoice_date->format('Y-m-d') : null,
+                'invoice_number' => $ap->invoice_number,
+                'amount' => (float)$ap->total_amount,
+                'tax_amount' => (float)$ap->tax_amount,
+                'status' => $ap->status,
+                'payment_method' => $mappedPaymentMethod,
+                'payment_note' => $ap->payment_note,
+                'remarks' => $ap->remarks,
+            ];
+        });
+
+        // 2. 獲取公共事業費 (已繳費)
+        $utilityFees = UtilityFee::where('payment_status', UtilityFee::STATUS_PAID)
+            ->whereBetween('transaction_date', [$start, $end])
             ->get()
             ->map(function ($fee) {
                 return [
@@ -45,12 +70,18 @@ class FinanceService implements FinanceServiceInterface
                     'category' => $fee->category,
                     'item' => $fee->description ?: $fee->category,
                     'reference' => '-',
+                    'invoice_date' => null,
                     'invoice_number' => $fee->invoice_number,
                     'amount' => (float)$fee->amount,
+                    'tax_amount' => 0.0,
+                    'status' => $fee->payment_status,
+                    'payment_method' => null,
+                    'payment_note' => null,
+                    'remarks' => $fee->description,
                 ];
             });
 
-        $allRecords = $purchaseOrders->concat($utilityFees)
+        $allRecords = $payableRecords->concat($utilityFees)
             ->sortByDesc('date')
             ->values();
 
@@ -58,7 +89,7 @@ class FinanceService implements FinanceServiceInterface
             'records' => $allRecords,
             'summary' => [
                 'total_amount' => $allRecords->sum('amount'),
-                'purchase_total' => $purchaseOrders->sum('amount'),
+                'payable_total' => $payableRecords->sum('amount'),
                 'utility_total' => $utilityFees->sum('amount'),
                 'record_count' => $allRecords->count(),
             ]
@@ -67,7 +98,7 @@ class FinanceService implements FinanceServiceInterface
 
     public function getUtilityFees(array $filters)
     {
-        $query = UtilityFee::query();
+        $query = UtilityFee::withCount('attachments');
 
         if (!empty($filters['search'])) {
             $search = $filters['search'];
@@ -94,7 +125,13 @@ class FinanceService implements FinanceServiceInterface
         $sortDirection = $filters['sort_direction'] ?? 'desc';
         $query->orderBy($sortField, $sortDirection);
 
-        return $query->paginate($filters['per_page'] ?? 10);
+        $defaultPerPage = \App\Modules\Core\Models\SystemSetting::getVal('display.per_page', 10);
+        $perPage = (int) ($filters['per_page'] ?? $defaultPerPage);
+        if (!in_array($perPage, [10, 20, 50, 100])) {
+            $perPage = $defaultPerPage;
+        }
+
+        return $query->paginate($perPage);
     }
 
     public function getUniqueCategories(): Collection

app/Modules/Integration/Actions/SyncOrderAction.php

@@ -0,0 +1,175 @@
+<?php
+
+namespace App\Modules\Integration\Actions;
+
+use App\Modules\Integration\Models\SalesOrder;
+use App\Modules\Integration\Models\SalesOrderItem;
+use App\Modules\Inventory\Contracts\InventoryServiceInterface;
+use App\Modules\Inventory\Contracts\ProductServiceInterface;
+use Illuminate\Support\Facades\DB;
+use Illuminate\Support\Facades\Log;
+use Illuminate\Support\Facades\Cache;
+use Illuminate\Validation\ValidationException;
+
+class SyncOrderAction
+{
+    protected $inventoryService;
+    protected $productService;
+
+    public function __construct(
+        InventoryServiceInterface $inventoryService,
+        ProductServiceInterface $productService
+    ) {
+        $this->inventoryService = $inventoryService;
+        $this->productService = $productService;
+    }
+
+    /**
+     * 執行訂單同步
+     *
+     * @param array $data
+     * @return array 包含 orders 建立結果的資訊
+     * @throws ValidationException
+     * @throws \Exception
+     */
+    public function execute(array $data)
+    {
+        $externalOrderId = $data['external_order_id'];
+
+        // 使用 Cache::lock 防護高併發，鎖定該訂單號 10 秒
+        // 此處需要 cache store 支援鎖 (如 memcached, dynamodb, redis, database, file, array)
+        // Laravel 預設的 file/redis 都支援。若無法取得鎖，表示有另一個相同的請求正在處理
+        $lock = Cache::lock("sync_order_{$externalOrderId}", 10);
+
+        if (!$lock->get()) {
+            throw ValidationException::withMessages([
+                'external_order_id' => ["The order {$externalOrderId} is currently being processed by another transaction. Please try again later."]
+            ]);
+        }
+
+        try {
+            // 冪等性處理：若訂單已存在，回傳已建立的訂單資訊
+            $existingOrder = SalesOrder::where('external_order_id', $externalOrderId)->first();
+            if ($existingOrder) {
+                return [
+                    'status' => 'exists',
+                    'message' => 'Order already exists',
+                    'order_id' => $existingOrder->id,
+                ];
+            }
+
+            // --- 預檢 (Pre-flight check) 僅使用 product_id ---
+            $items = $data['items'];
+            $targetErpIds = array_column($items, 'product_id');
+            
+            // 一次性查出所有相關的 Product
+            $productsById = $this->productService->findByIds($targetErpIds)->keyBy('id');
+            
+            $resolvedProducts = [];
+            $missingIds = [];
+            
+            foreach ($items as $index => $item) {
+                $productId = $item['product_id'];
+                $product = $productsById->get($productId);
+
+                if ($product) {
+                    $resolvedProducts[$index] = $product;
+                } else {
+                    $missingIds[] = $productId;
+                }
+            }
+
+            if (!empty($missingIds)) {
+                throw ValidationException::withMessages([
+                    'items' => ["The following product IDs are not found: " . implode(', ', array_unique($missingIds)) . ". Please ensure these products exist in the system."]
+                ]);
+            }
+
+            // --- 執行寫入交易 ---
+            $result = DB::transaction(function () use ($data, $items, $resolvedProducts) {
+                // 1. 查找倉庫（提前至建立訂單前，以便判定來源）
+                $warehouseCode = $data['warehouse_code'];
+                $warehouses = $this->inventoryService->getWarehousesByCodes([$warehouseCode]);
+                
+                if ($warehouses->isEmpty()) {
+                    throw ValidationException::withMessages([
+                        'warehouse_code' => ["Warehouse with code {$warehouseCode} not found."]
+                    ]);
+                }
+                $warehouse = $warehouses->first();
+                $warehouseId = $warehouse->id;
+
+                // 2. 自動判定來源：若是販賣機倉庫則標記為 vending，其餘為 pos
+                $source = ($warehouse->type === \App\Enums\WarehouseType::VENDING) ? 'vending' : 'pos';
+
+                // 3. 建立訂單
+                $order = SalesOrder::create([
+                    'external_order_id' => $data['external_order_id'],
+                    'name' => $data['name'],
+                    'status' => 'completed',
+                    'payment_method' => $data['payment_method'] ?? 'cash',
+                    'total_amount' => $data['total_amount'],
+                    'total_qty' => $data['total_qty'],
+                    'sold_at' => $data['sold_at'] ?? now(),
+                    'raw_payload' => $data,
+                    'source' => $source,
+                    'source_label' => $data['source_label'] ?? null,
+                ]);
+
+                $totalAmount = 0;
+
+                // 3. 處理訂單明細
+                $orderItemsData = [];
+                foreach ($items as $index => $itemData) {
+                    $product = $resolvedProducts[$index];
+                    
+                    $qty = $itemData['qty'];
+                    $price = $itemData['price'];
+                    $batchNumber = $itemData['batch_number'] ?? null;
+                    $lineTotal = $qty * $price;
+                    $totalAmount += $lineTotal;
+
+                    $orderItemsData[] = [
+                        'sales_order_id' => $order->id,
+                        'product_id' => $product->id,
+                        'product_name' => $product->name,
+                        'quantity' => $qty,
+                        'price' => $price,
+                        'total' => $lineTotal,
+                        'created_at' => now(),
+                        'updated_at' => now(),
+                    ];
+
+                    // 4. 扣除庫存（強制模式，允許負庫存）
+                    $this->inventoryService->decreaseStock(
+                        $product->id,
+                        $warehouseId,
+                        $qty,
+                        "POS Order: " . $order->external_order_id,
+                        true,
+                        null, // Slot (location)
+                        \App\Modules\Integration\Models\SalesOrder::class,
+                        $order->id,
+                        $batchNumber
+                    );
+                }
+
+                // Batch insert order items
+                SalesOrderItem::insert($orderItemsData);
+
+                $order->update(['total_amount' => $totalAmount]);
+
+                return [
+                    'status' => 'created',
+                    'message' => 'Order synced and stock deducted successfully',
+                    'order_id' => $order->id,
+                ];
+            });
+
+            return $result;
+        } finally {
+            // 無論成功失敗，最後釋放鎖定
+            $lock->release();
+        }
+    }
+}

app/Modules/Integration/Actions/SyncVendingOrderAction.php

@@ -0,0 +1,157 @@
+<?php
+
+namespace App\Modules\Integration\Actions;
+
+use App\Modules\Integration\Models\SalesOrder;
+use App\Modules\Integration\Models\SalesOrderItem;
+use App\Modules\Inventory\Contracts\InventoryServiceInterface;
+use App\Modules\Inventory\Contracts\ProductServiceInterface;
+use Illuminate\Support\Facades\DB;
+use Illuminate\Support\Facades\Log;
+use Illuminate\Support\Facades\Cache;
+use Illuminate\Validation\ValidationException;
+
+class SyncVendingOrderAction
+{
+    protected $inventoryService;
+    protected $productService;
+
+    public function __construct(
+        InventoryServiceInterface $inventoryService,
+        ProductServiceInterface $productService
+    ) {
+        $this->inventoryService = $inventoryService;
+        $this->productService = $productService;
+    }
+
+    /**
+     * 執行販賣機訂單同步
+     *
+     * @param array $data
+     * @return array 包含訂單建立結果的資訊
+     * @throws ValidationException
+     * @throws \Exception
+     */
+    public function execute(array $data)
+    {
+        $externalOrderId = $data['external_order_id'];
+
+        // 使用 Cache::lock 防護高併發
+        $lock = Cache::lock("sync_order_{$externalOrderId}", 10);
+
+        if (!$lock->get()) {
+            throw ValidationException::withMessages([
+                'external_order_id' => ["The order {$externalOrderId} is currently being processed by another transaction. Please try again later."]
+            ]);
+        }
+
+        try {
+            // 冪等性處理：若訂單已存在，回傳已建立的訂單資訊
+            $existingOrder = SalesOrder::where('external_order_id', $externalOrderId)->first();
+            if ($existingOrder) {
+                return [
+                    'status' => 'exists',
+                    'message' => 'Order already exists',
+                    'order_id' => $existingOrder->id,
+                ];
+            }
+
+            // --- 預檢：以 ERP 商品代碼查詢 ---
+            $items = $data['items'];
+            $productCodes = array_column($items, 'product_code');
+
+            // 一次性查出所有相關的 Product（以 code 查詢）
+            $products = $this->productService->findByCodes($productCodes)->keyBy('code');
+
+            $missingCodes = [];
+            foreach ($productCodes as $code) {
+                if (!$products->has($code)) {
+                    $missingCodes[] = $code;
+                }
+            }
+
+            if (!empty($missingCodes)) {
+                throw ValidationException::withMessages([
+                    'items' => ["The following products are not found by code: " . implode(', ', $missingCodes) . ". Please ensure these products exist in the system."]
+                ]);
+            }
+
+            // --- 執行寫入交易 ---
+            $result = DB::transaction(function () use ($data, $items, $products) {
+                // 1. 建立訂單
+                $order = SalesOrder::create([
+                    'external_order_id' => $data['external_order_id'],
+                    'status' => 'completed',
+                    'payment_method' => $data['payment_method'] ?? 'electronic',
+                    'total_amount' => 0,
+                    'sold_at' => $data['sold_at'] ?? now(),
+                    'raw_payload' => $data,
+                    'source' => 'vending',
+                    'source_label' => $data['machine_id'] ?? null,
+                ]);
+
+                // 2. 查找倉庫
+                $warehouseCode = $data['warehouse_code'];
+                $warehouses = $this->inventoryService->getWarehousesByCodes([$warehouseCode]);
+                
+                if ($warehouses->isEmpty()) {
+                    throw ValidationException::withMessages([
+                        'warehouse_code' => ["Warehouse with code {$warehouseCode} not found."]
+                    ]);
+                }
+                $warehouseId = $warehouses->first()->id;
+
+                $totalAmount = 0;
+
+                // 3. 處理訂單明細
+                $orderItemsData = [];
+                foreach ($items as $itemData) {
+                    $product = $products->get($itemData['product_code']);
+
+                    $qty = $itemData['qty'];
+                    $price = $itemData['price'];
+                    $lineTotal = $qty * $price;
+                    $totalAmount += $lineTotal;
+
+                    $orderItemsData[] = [
+                        'sales_order_id' => $order->id,
+                        'product_id' => $product->id,
+                        'product_name' => $product->name,
+                        'quantity' => $qty,
+                        'price' => $price,
+                        'total' => $lineTotal,
+                        'created_at' => now(),
+                        'updated_at' => now(),
+                    ];
+
+                    // 4. 扣除庫存（強制模式，允許負庫存）
+                    $this->inventoryService->decreaseStock(
+                        $product->id,
+                        $warehouseId,
+                        $qty,
+                        "Vending Order: " . $order->external_order_id,
+                        true,
+                        null,
+                        \App\Modules\Integration\Models\SalesOrder::class,
+                        $order->id
+                    );
+                }
+
+                // Batch insert order items
+                SalesOrderItem::insert($orderItemsData);
+
+                $order->update(['total_amount' => $totalAmount]);
+
+                return [
+                    'status' => 'created',
+                    'message' => 'Vending order synced and stock deducted successfully',
+                    'order_id' => $order->id,
+                ];
+            });
+
+            return $result;
+        } finally {
+            $lock->release();
+        }
+    }
+}

app/Modules/Integration/Controllers/InventorySyncController.php

@@ -0,0 +1,63 @@
+<?php
+
+namespace App\Modules\Integration\Controllers;
+
+use App\Http\Controllers\Controller;
+use App\Modules\Inventory\Contracts\InventoryServiceInterface;
+use Illuminate\Http\JsonResponse;
+
+class InventorySyncController extends Controller
+{
+    protected $inventoryService;
+
+    public function __construct(InventoryServiceInterface $inventoryService)
+    {
+        $this->inventoryService = $inventoryService;
+    }
+
+    /**
+     * 提供外部 POS 查詢指定倉庫的商品庫存餘額
+     *
+     * @param string $warehouseCode
+     * @return JsonResponse
+     */
+    public function show(\Illuminate\Http\Request $request, string $warehouseCode): JsonResponse
+    {
+        // 透過 Service 調用跨模組庫存查詢功能，傳入篩選條件
+        $inventoryData = $this->inventoryService->getPosInventoryByWarehouseCode(
+            $warehouseCode, 
+            $request->only(['product_id', 'barcode', 'code', 'external_pos_id'])
+        );
+
+        // 若回傳 null，表示尋無此倉庫代碼
+        if (is_null($inventoryData)) {
+            return response()->json([
+                'status' => 'error',
+                'message' => "Warehouse with code '{$warehouseCode}' not found.",
+            ], 404);
+        }
+
+        // 以 JSON 格式回傳組合好的商品庫存列表
+        return response()->json([
+            'status' => 'success',
+            'warehouse_code' => $warehouseCode,
+            'data' => $inventoryData->map(function ($item) {
+                return [
+                    'product_id' => $item->product_id,
+                    'external_pos_id' => $item->external_pos_id,
+                    'product_code' => $item->product_code,
+                    'product_name' => $item->product_name,
+                    'barcode' => $item->barcode,
+                    'category_name' => $item->category_name ?? '未分類',
+                    'unit_name' => $item->unit_name ?? '個',
+                    'price' => (float) $item->price,
+                    'brand' => $item->brand,
+                    'specification' => $item->specification,
+                    'batch_number' => $item->batch_number,
+                    'expiry_date' => $item->expiry_date,
+                    'quantity' => (float) $item->total_quantity,
+                ];
+            })
+        ], 200);
+    }
+}

app/Modules/Integration/Controllers/OrderSyncController.php

@@ -0,0 +1,60 @@
+<?php
+
+namespace App\Modules\Integration\Controllers;
+
+use App\Http\Controllers\Controller;
+use App\Modules\Integration\Requests\SyncOrderRequest;
+use App\Modules\Integration\Actions\SyncOrderAction;
+use Illuminate\Http\JsonResponse;
+use Illuminate\Support\Facades\Log;
+
+class OrderSyncController extends Controller
+{
+    protected $syncOrderAction;
+
+    public function __construct(SyncOrderAction $syncOrderAction)
+    {
+        $this->syncOrderAction = $syncOrderAction;
+    }
+
+    /**
+     * 接收並同步外部交易訂單
+     *
+     * @param SyncOrderRequest $request
+     * @return JsonResponse
+     */
+    public function store(SyncOrderRequest $request): JsonResponse
+    {
+        try {
+            // 所有驗證皆已透過 SyncOrderRequest 自動處理
+            // 將通過驗證的資料交由 Action 處理（包含併發鎖、預先驗證、與資料庫異動）
+            $result = $this->syncOrderAction->execute($request->validated());
+
+            $statusCode = ($result['status'] === 'exists') ? 200 : 201;
+
+            return response()->json([
+                'message' => $result['message'],
+                'order_id' => $result['order_id'] ?? null,
+            ], $statusCode);
+
+        } catch (\Illuminate\Validation\ValidationException $e) {
+            // 捕捉 Action 中拋出的預先驗證錯誤 (如查無商品、或鎖定逾時)
+            return response()->json([
+                'message' => 'Validation failed',
+                'errors' => $e->errors()
+            ], 422);
+
+        } catch (\Exception $e) {
+            // 系統層級的錯誤
+            Log::error('Order Sync Failed', [
+                'error' => $e->getMessage(),
+                'trace' => $e->getTraceAsString(),
+                'payload' => $request->all()
+            ]);
+            
+            return response()->json([
+                'message' => 'Sync failed: An unexpected error occurred.'
+            ], 500);
+        }
+    }
+}

app/Modules/Integration/Controllers/ProductSyncController.php

@@ -0,0 +1,114 @@
+<?php
+
+namespace App\Modules\Integration\Controllers;
+
+use App\Http\Controllers\Controller;
+use Illuminate\Http\Request;
+use App\Modules\Inventory\Contracts\ProductServiceInterface;
+use Illuminate\Support\Facades\Log;
+
+class ProductSyncController extends Controller
+{
+    protected $productService;
+
+    public function __construct(ProductServiceInterface $productService)
+    {
+        $this->productService = $productService;
+    }
+
+    public function upsert(Request $request)
+    {
+        $request->validate([
+            'external_pos_id' => 'required|string|max:255',
+            'name' => 'required|string|max:255',
+            'price' => 'nullable|numeric|min:0|max:99999999.99',
+            'barcode' => 'nullable|string|max:100',
+            'category' => 'required|string|max:100',
+            'unit' => 'required|string|max:100',
+            'brand' => 'nullable|string|max:100',
+            'specification' => 'nullable|string|max:255',
+            'cost_price' => 'nullable|numeric|min:0|max:99999999.99',
+            'member_price' => 'nullable|numeric|min:0|max:99999999.99',
+            'wholesale_price' => 'nullable|numeric|min:0|max:99999999.99',
+            'updated_at' => 'nullable|date',
+        ]);
+
+        try {
+            $product = $this->productService->upsertFromPos($request->all());
+
+            return response()->json([
+                'message' => 'Product synced successfully',
+                'data' => [
+                    'id' => $product->id,
+                    'external_pos_id' => $product->external_pos_id,
+                    'code' => $product->code,
+                    'barcode' => $product->barcode,
+                ]
+            ]);
+        } catch (\Exception $e) {
+            Log::error('Product Sync Failed', ['error' => $e->getMessage(), 'payload' => $request->all()]);
+            return response()->json([
+                'message' => 'Sync failed: ' . $e->getMessage(),
+            ], 500);
+        }
+    }
+
+    /**
+     * 搜尋商品（供外部 API 使用）。
+     *
+     * @param Request $request
+     * @return \Illuminate\Http\JsonResponse
+     */
+    public function index(Request $request)
+    {
+        $request->validate([
+            'product_id' => 'nullable|integer',
+            'external_pos_id' => 'nullable|string|max:255',
+            'barcode' => 'nullable|string|max:100',
+            'code' => 'nullable|string|max:100',
+            'category' => 'nullable|string|max:100',
+            'updated_after' => 'nullable|date',
+            'per_page' => 'nullable|integer|min:1|max:100',
+        ]);
+
+        try {
+            $perPage = $request->input('per_page', 50);
+            $products = $this->productService->searchProducts($request->all(), $perPage);
+
+            return response()->json([
+                'status' => 'success',
+                'data' => $products->getCollection()->map(function ($product) {
+                    return [
+                        'id' => $product->id,
+                        'code' => $product->code,
+                        'barcode' => $product->barcode,
+                        'name' => $product->name,
+                        'external_pos_id' => $product->external_pos_id,
+                        'category_name' => $product->category?->name ?? '未分類',
+                        'brand' => $product->brand,
+                        'specification' => $product->specification,
+                        'unit_name' => $product->baseUnit?->name ?? '個',
+                        'price' => (float) $product->price,
+                        'cost_price' => (float) $product->cost_price,
+                        'member_price' => (float) $product->member_price,
+                        'wholesale_price' => (float) $product->wholesale_price,
+                        'is_active' => (bool) $product->is_active,
+                        'updated_at' => $product->updated_at->format('Y-m-d H:i:s'),
+                    ];
+                }),
+                'meta' => [
+                    'current_page' => $products->currentPage(),
+                    'last_page' => $products->lastPage(),
+                    'per_page' => $products->perPage(),
+                    'total' => $products->total(),
+                ]
+            ]);
+        } catch (\Exception $e) {
+            Log::error('Product Search Failed', ['error' => $e->getMessage()]);
+            return response()->json([
+                'status' => 'error',
+                'message' => 'Search failed: ' . $e->getMessage(),
+            ], 500);
+        }
+    }
+}

app/Modules/Integration/Controllers/SalesOrderController.php

@@ -0,0 +1,66 @@
+<?php
+
+namespace App\Modules\Integration\Controllers;
+
+use App\Http\Controllers\Controller;
+use App\Modules\Integration\Models\SalesOrder;
+use Illuminate\Http\Request;
+use Inertia\Inertia;
+
+class SalesOrderController extends Controller
+{
+    /**
+     * 顯示銷售訂單列表
+     */
+    public function index(Request $request)
+    {
+        $query = SalesOrder::query();
+
+        // 搜尋篩選 (外部訂單號)
+        if ($request->filled('search')) {
+            $query->where(function ($q) use ($request) {
+                $q->where('external_order_id', 'like', '%' . $request->search . '%')
+                  ->orWhere('name', 'like', '%' . $request->search . '%');
+            });
+        }
+
+        // 來源篩選
+        if ($request->filled('source')) {
+            $query->where('source', $request->source);
+        }
+
+        // 付款方式篩選
+        if ($request->filled('payment_method')) {
+            $query->where('payment_method', $request->payment_method);
+        }
+
+        // 排序
+        $query->orderBy('sold_at', 'desc');
+
+        $defaultPerPage = \App\Modules\Core\Models\SystemSetting::getVal('display.per_page', 10);
+        $perPage = (int) $request->input('per_page', $defaultPerPage);
+        if (!in_array($perPage, [10, 20, 50, 100])) {
+            $perPage = $defaultPerPage;
+        }
+
+        $orders = $query->paginate($perPage)
+            ->withQueryString();
+
+        return Inertia::render('Integration/SalesOrders/Index', [
+            'orders' => $orders,
+            'filters' => $request->only(['search', 'per_page', 'source', 'status', 'payment_method']),
+        ]);
+    }
+
+    /**
+     * 顯示單一銷售訂單詳情
+     */
+    public function show(SalesOrder $salesOrder)
+    {
+        $salesOrder->load(['items']);
+
+        return Inertia::render('Integration/SalesOrders/Show', [
+            'order' => $salesOrder,
+        ]);
+    }
+}

app/Modules/Integration/Controllers/VendingOrderSyncController.php

@@ -0,0 +1,56 @@
+<?php
+
+namespace App\Modules\Integration\Controllers;
+
+use App\Http\Controllers\Controller;
+use App\Modules\Integration\Requests\SyncVendingOrderRequest;
+use App\Modules\Integration\Actions\SyncVendingOrderAction;
+use Illuminate\Http\JsonResponse;
+use Illuminate\Support\Facades\Log;
+
+class VendingOrderSyncController extends Controller
+{
+    protected $syncVendingOrderAction;
+
+    public function __construct(SyncVendingOrderAction $syncVendingOrderAction)
+    {
+        $this->syncVendingOrderAction = $syncVendingOrderAction;
+    }
+
+    /**
+     * 接收並同步販賣機交易訂單
+     *
+     * @param SyncVendingOrderRequest $request
+     * @return JsonResponse
+     */
+    public function store(SyncVendingOrderRequest $request): JsonResponse
+    {
+        try {
+            $result = $this->syncVendingOrderAction->execute($request->validated());
+
+            $statusCode = ($result['status'] === 'exists') ? 200 : 201;
+
+            return response()->json([
+                'message' => $result['message'],
+                'order_id' => $result['order_id'] ?? null,
+            ], $statusCode);
+
+        } catch (\Illuminate\Validation\ValidationException $e) {
+            return response()->json([
+                'message' => 'Validation failed',
+                'errors' => $e->errors()
+            ], 422);
+
+        } catch (\Exception $e) {
+            Log::error('Vending Order Sync Failed', [
+                'error' => $e->getMessage(),
+                'trace' => $e->getTraceAsString(),
+                'payload' => $request->all()
+            ]);
+
+            return response()->json([
+                'message' => 'Sync failed: An unexpected error occurred.'
+            ], 500);
+        }
+    }
+}

app/Modules/Integration/IntegrationServiceProvider.php

@@ -0,0 +1,33 @@
+<?php
+
+namespace App\Modules\Integration;
+
+use Illuminate\Support\ServiceProvider;
+use Illuminate\Support\Facades\Route;
+use Illuminate\Support\Facades\RateLimiter;
+use Illuminate\Cache\RateLimiting\Limit;
+use Illuminate\Http\Request;
+use App\Modules\Integration\Middleware\TenantIdentificationMiddleware;
+
+class IntegrationServiceProvider extends ServiceProvider
+{
+    public function boot()
+    {
+        $this->loadRoutesFrom(__DIR__ . '/Routes/api.php');
+        $this->loadRoutesFrom(__DIR__ . '/Routes/web.php');
+        $this->loadMigrationsFrom(__DIR__ . '/Database/Migrations');
+
+        // 註冊 Middleware 別名
+        Route::aliasMiddleware('integration.tenant', TenantIdentificationMiddleware::class);
+
+        // 定義 Integration API 速率限制（每分鐘 60 次，依 Token 使用者識別）
+        RateLimiter::for('integration', function (Request $request) {
+            return Limit::perMinute(60)->by($request->user()?->id ?: $request->ip());
+        });
+    }
+
+    public function register()
+    {
+        //
+    }
+}

app/Modules/Integration/Middleware/TenantIdentificationMiddleware.php

@@ -0,0 +1,58 @@
+<?php
+
+namespace App\Modules\Integration\Middleware;
+
+use Closure;
+use Illuminate\Http\Request;
+use Stancl\Tenancy\Facades\Tenancy;
+use Symfony\Component\HttpFoundation\Response;
+
+class TenantIdentificationMiddleware
+{
+    /**
+     * Handle an incoming request.
+     *
+     * @param  \Closure(\Illuminate\Http\Request): (\Symfony\Component\HttpFoundation\Response)  $next
+     */
+    public function handle(Request $request, Closure $next): Response
+    {
+        // 1. Check for X-Tenant-Domain header
+        $domain = $request->header('X-Tenant-Domain');
+
+        if (! $domain) {
+            return response()->json([
+                'message' => 'Missing X-Tenant-Domain header.',
+            ], 400);
+        }
+
+        // 2. Find Tenant by domain
+        // Assuming domains are stored in 'domains' table and linked to tenants
+        // Or using Stancl's tenant finder. 
+        // Stancl Tenancy usually finds by domain automatically for web routes, but for API 
+        // we are doing manual identification because we might not be using subdomains for API calls (or maybe we are).
+        // If the API endpoint is centrally hosted (e.g. api.star-erp.com/v1/...), we need this header.
+        
+        // Let's try to initialize tenancy manually.
+        // We need to find the tenant model that has this domain.
+        try {
+             $tenant = \App\Modules\Core\Models\Tenant::whereHas('domains', function ($query) use ($domain) {
+                 $query->where('domain', $domain);
+             })->first();
+
+             if (! $tenant) {
+                 return response()->json([
+                     'message' => 'Tenant not found.',
+                 ], 404);
+             }
+
+             Tenancy::initialize($tenant);
+
+        } catch (\Exception $e) {
+            return response()->json([
+                'message' => 'Tenant initialization failed: ' . $e->getMessage(),
+            ], 500);
+        }
+
+        return $next($request);
+    }
+}

app/Modules/Integration/Models/SalesOrder.php

@@ -0,0 +1,36 @@
+<?php
+
+namespace App\Modules\Integration\Models;
+
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\HasMany;
+
+class SalesOrder extends Model
+{
+    protected $table = 'sales_orders';
+
+    protected $fillable = [
+        'external_order_id',
+        'name',
+        'status',
+        'payment_method',
+        'total_amount',
+        'total_qty',
+        'sold_at',
+        'raw_payload',
+        'source',
+        'source_label',
+    ];
+
+    protected $casts = [
+        'sold_at' => 'datetime',
+        'raw_payload' => 'array',
+        'total_amount' => 'decimal:4',
+        'total_qty' => 'decimal:4',
+    ];
+
+    public function items(): HasMany
+    {
+        return $this->hasMany(SalesOrderItem::class);
+    }
+}

app/Modules/Integration/Models/SalesOrderItem.php

@@ -0,0 +1,31 @@
+<?php
+
+namespace App\Modules\Integration\Models;
+
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\BelongsTo;
+
+class SalesOrderItem extends Model
+{
+    protected $table = 'sales_order_items';
+
+    protected $fillable = [
+        'sales_order_id',
+        'product_id',
+        'product_name',
+        'quantity',
+        'price',
+        'total',
+    ];
+
+    protected $casts = [
+        'quantity' => 'decimal:4',
+        'price' => 'decimal:4',
+        'total' => 'decimal:4',
+    ];
+
+    public function order(): BelongsTo
+    {
+        return $this->belongsTo(SalesOrder::class, 'sales_order_id');
+    }
+}

app/Modules/Integration/Requests/SyncOrderRequest.php

@@ -0,0 +1,39 @@
+<?php
+
+namespace App\Modules\Integration\Requests;
+
+use Illuminate\Foundation\Http\FormRequest;
+
+class SyncOrderRequest extends FormRequest
+{
+    /**
+     * Determine if the user is authorized to make this request.
+     */
+    public function authorize(): bool
+    {
+        return true;
+    }
+
+    /**
+     * Get the validation rules that apply to the request.
+     *
+     * @return array<string, \Illuminate\Contracts\Validation\ValidationRule|array<mixed>|string>
+     */
+    public function rules(): array
+    {
+        return [
+            'external_order_id' => 'required|string',
+            'name' => 'required|string|max:255',
+            'warehouse_code' => 'required|string',
+            'payment_method' => 'nullable|string|in:cash,credit_card,line_pay,ecpay,transfer,other',
+            'total_amount' => 'required|numeric|min:0',
+            'total_qty' => 'required|numeric|min:0',
+            'sold_at' => 'nullable|date',
+            'items' => 'required|array|min:1',
+            'items.*.product_id' => 'required|integer',
+            'items.*.batch_number' => 'nullable|string',
+            'items.*.qty' => 'required|numeric|min:0.0001',
+            'items.*.price' => 'required|numeric|min:0',
+        ];
+    }
+}

app/Modules/Integration/Requests/SyncVendingOrderRequest.php

@@ -0,0 +1,36 @@
+<?php
+
+namespace App\Modules\Integration\Requests;
+
+use Illuminate\Foundation\Http\FormRequest;
+
+class SyncVendingOrderRequest extends FormRequest
+{
+    /**
+     * Determine if the user is authorized to make this request.
+     */
+    public function authorize(): bool
+    {
+        return true;
+    }
+
+    /**
+     * 販賣機訂單同步的驗證規則
+     *
+     * @return array<string, \Illuminate\Contracts\Validation\ValidationRule|array<mixed>|string>
+     */
+    public function rules(): array
+    {
+        return [
+            'external_order_id' => 'required|string',
+            'machine_id'        => 'nullable|string',
+            'warehouse_code'    => 'required|string',
+            'payment_method'    => 'nullable|string|in:cash,electronic,line_pay,other',
+            'sold_at'           => 'nullable|date',
+            'items'             => 'required|array|min:1',
+            'items.*.product_code' => 'required|string',  // 使用 ERP 商品代碼
+            'items.*.qty'       => 'required|numeric|min:0.0001',
+            'items.*.price'     => 'required|numeric|min:0',
+        ];
+    }
+}

app/Modules/Integration/Routes/api.php

@@ -0,0 +1,17 @@
+<?php
+
+use Illuminate\Support\Facades\Route;
+use App\Modules\Integration\Controllers\ProductSyncController;
+use App\Modules\Integration\Controllers\OrderSyncController;
+use App\Modules\Integration\Controllers\VendingOrderSyncController;
+use App\Modules\Integration\Controllers\InventorySyncController;
+
+Route::prefix('api/v1/integration')
+    ->middleware(['api', 'throttle:integration', 'integration.tenant', 'auth:sanctum'])
+    ->group(function () {
+        Route::get('products', [ProductSyncController::class, 'index']);
+        Route::post('products/upsert', [ProductSyncController::class, 'upsert']);
+        Route::post('orders', [OrderSyncController::class, 'store']);
+        Route::post('vending/orders', [VendingOrderSyncController::class, 'store']);
+        Route::get('inventory/{warehouse_code}', [InventorySyncController::class, 'show']);
+    });

app/Modules/Integration/Routes/web.php

@@ -0,0 +1,13 @@
+<?php
+
+use App\Modules\Integration\Controllers\SalesOrderController;
+use Illuminate\Support\Facades\Route;
+
+Route::middleware(['web', 'auth', 'verified'])->group(function () {
+    Route::prefix('integration')->name('integration.')->group(function () {
+        Route::middleware('permission:sales_orders.view')->group(function () {
+            Route::get('sales-orders', [SalesOrderController::class, 'index'])->name('sales-orders.index');
+            Route::get('sales-orders/{salesOrder}', [SalesOrderController::class, 'show'])->name('sales-orders.show');
+        });
+    });
+});

app/Modules/Inventory/Contracts/GoodsReceiptServiceInterface.php

@@ -0,0 +1,14 @@
+<?php
+
+namespace App\Modules\Inventory\Contracts;
+
+interface GoodsReceiptServiceInterface
+{
+    /**
+     * 獲取指定的進貨單資訊
+     * 
+     * @param int $goodsReceiptId
+     * @return array|null 返回進貨單的純陣列資料，若找不到則回傳 null
+     */
+    public function getGoodsReceiptData(int $goodsReceiptId): ?array;
+}

app/Modules/Inventory/Contracts/InventoryServiceInterface.php

@@ -15,15 +15,18 @@ interface InventoryServiceInterface
     public function checkStock(int $productId, int $warehouseId, float $quantity): bool;
 
     /**
-     * Decrease stock for a product (e.g., when an order is placed).
-     * 
      * @param int $productId
      * @param int $warehouseId
      * @param float $quantity
      * @param string|null $reason
+     * @param bool $force
+     * @param string|null $slot
+     * @param string|null $referenceType
+     * @param int|string|null $referenceId
+     * @param string|null $batchNumber
      * @return void
      */
-    public function decreaseStock(int $productId, int $warehouseId, float $quantity, ?string $reason = null): void;
+    public function decreaseStock(int $productId, int $warehouseId, float $quantity, ?string $reason = null, bool $force = false, ?string $slot = null, ?string $referenceType = null, $referenceId = null, ?string $batchNumber = null): void;
 
     /**
      * Get all active warehouses.
@@ -40,6 +43,14 @@ interface InventoryServiceInterface
      */
     public function getProductsByIds(array $ids);
 
+    /**
+     * Get multiple warehouses by their codes.
+     * 
+     * @param array $codes
+     * @return \Illuminate\Support\Collection
+     */
+    public function getWarehousesByCodes(array $codes);
+
     /**
      * Search products by name.
      * 
@@ -106,10 +117,75 @@ interface InventoryServiceInterface
      */
     public function decreaseInventoryQuantity(int $inventoryId, float $quantity, ?string $reason = null, ?string $referenceType = null, $referenceId = null);
 
+    /**
+     * Find a specific inventory record by warehouse, product and batch.
+     * 
+     * @param int $warehouseId
+     * @param int $productId
+     * @param string|null $batchNumber
+     * @return object|null
+     */
+    public function findInventoryByBatch(int $warehouseId, int $productId, ?string $batchNumber);
+
+    /**
+     * 取得即時庫存查詢資料（含統計卡片 + 分頁明細）。
+     *
+     * @param array $filters 篩選條件
+     * @param int $perPage 每頁筆數
+     * @return array
+     */
+    public function getStockQueryData(array $filters = [], ?int $perPage = null): array;
+
     /**
      * Get statistics for the dashboard.
      * 
      * @return array
      */
     public function getDashboardStats(): array;
+
+    /**
+     * 依倉庫名稱查找或建立倉庫（供外部整合用）。
+     *
+     * @param string $warehouseName
+     * @return object
+     */
+    public function findOrCreateWarehouseByName(string $warehouseName);
+
+    /**
+     * Get top inventory value for dashboard.
+     */
+    public function getTopInventoryValue(int $limit = 5): \Illuminate\Support\Collection;
+
+    /**
+     * Get items expiring soon for dashboard.
+     */
+    public function getExpiringSoon(int $limit = 5): \Illuminate\Support\Collection;
+
+    /**
+     * Get inventory summary (group by product) for a specific warehouse code
+     * 
+     * @param string $code
+     * @param array $filters
+     * @return \Illuminate\Support\Collection|null
+     */
+    public function getPosInventoryByWarehouseCode(string $code, array $filters = []);
+
+    /**
+     * 處理批量入庫邏輯 (含批號產生與現有批號累加)。
+     *
+     * @param \App\Modules\Inventory\Models\Warehouse $warehouse
+     * @param array $items 入庫品項清單
+     * @param array $meta 資料包含 inboundDate, reason, notes
+     * @return void
+     */
+    public function processIncomingInventory(\App\Modules\Inventory\Models\Warehouse $warehouse, array $items, array $meta): void;
+
+    /**
+     * 處理單一庫存項目的調整。
+     *
+     * @param \App\Modules\Inventory\Models\Inventory $inventory
+     * @param array $data 包含 quantity, operation, type, reason, unit_cost 等
+     * @return void
+     */
+    public function adjustInventory(\App\Modules\Inventory\Models\Inventory $inventory, array $data): void;
 }

app/Modules/Inventory/Contracts/ProductServiceInterface.php

@@ -0,0 +1,98 @@
+<?php
+
+namespace App\Modules\Inventory\Contracts;
+
+/**
+ * 產品服務介面 — 供跨模組使用（如 Integration 模組）。
+ */
+interface ProductServiceInterface
+{
+    /**
+     * 透過外部 POS ID 進行產品新增或更新（Upsert）。
+     *
+     * @param array $data
+     * @return object
+     */
+    public function upsertFromPos(array $data);
+
+    /**
+     * 透過外部 POS ID 查找產品。
+     *
+     * @param string $externalPosId
+     * @return object|null
+     */
+    public function findByExternalPosId(string $externalPosId);
+
+    /**
+     * 透過多個外部 POS ID 查找產品。
+     *
+     * @param array $externalPosIds
+     * @return \Illuminate\Database\Eloquent\Collection
+     */
+    public function findByExternalPosIds(array $externalPosIds);
+
+    /**
+     * 透過多個 ERP 內部 ID 查找產品。
+     *
+     * @param array $ids
+     * @return \Illuminate\Database\Eloquent\Collection
+     */
+    public function findByIds(array $ids);
+
+    /**
+     * 透過多個 ERP 商品代碼查找產品（供販賣機 API 使用）。
+     *
+     * @param array $codes
+     * @return \Illuminate\Database\Eloquent\Collection
+     */
+    public function findByCodes(array $codes);
+
+    /**
+     * 建立新商品。
+     *
+     * @param array $data
+     * @return \App\Modules\Inventory\Models\Product
+     */
+    public function createProduct(array $data);
+
+    /**
+     * 更新現有商品。
+     *
+     * @param \App\Modules\Inventory\Models\Product $product
+     * @param array $data
+     * @return \App\Modules\Inventory\Models\Product
+     */
+    public function updateProduct(\App\Modules\Inventory\Models\Product $product, array $data);
+
+    /**
+     * 生成隨機 8 碼代號 (大寫英文+數字)。
+     *
+     * @return string
+     */
+    public function generateRandomCode();
+
+    /**
+     * 生成隨機 13 碼條碼 (純數字)。
+     *
+     * @return string
+     */
+    public function generateRandomBarcode();
+
+    /**
+     * 根據條碼或代號查找商品。
+     *
+     * @param string|null $barcode
+     * @param string|null $code
+     * @return \App\Modules\Inventory\Models\Product|null
+     */
+    public function findByBarcodeOrCode(?string $barcode, ?string $code);
+
+    /**
+     * 搜尋商品（供外部 API 使用）。
+     *
+     * @param array $filters
+     * @param int $perPage
+     * @return \Illuminate\Contracts\Pagination\LengthAwarePaginator
+     */
+    public function searchProducts(array $filters, int $perPage = 50);
+}

app/Modules/Inventory/Controllers/AdjustDocController.php

@@ -0,0 +1,246 @@
+<?php
+
+namespace App\Modules\Inventory\Controllers;
+
+use App\Http\Controllers\Controller;
+use App\Modules\Inventory\Models\InventoryAdjustDoc;
+use App\Modules\Inventory\Models\InventoryCountDoc;
+use App\Modules\Inventory\Models\Warehouse;
+use App\Modules\Inventory\Services\AdjustService;
+use Illuminate\Http\Request;
+use Illuminate\Support\Facades\DB;
+use Inertia\Inertia;
+
+class AdjustDocController extends Controller
+{
+    protected $adjustService;
+
+    public function __construct(AdjustService $adjustService)
+    {
+        $this->adjustService = $adjustService;
+    }
+
+    public function index(Request $request)
+    {
+        $query = InventoryAdjustDoc::query()
+            ->with(['createdBy', 'postedBy', 'warehouse']);
+
+        // 搜尋
+        if ($request->filled('search')) {
+            $search = $request->search;
+            $query->where(function($q) use ($search) {
+                $q->where('doc_no', 'like', "%{$search}%")
+                  ->orWhere('reason', 'like', "%{$search}%")
+                  ->orWhere('remarks', 'like', "%{$search}%");
+            });
+        }
+
+        if ($request->filled('warehouse_id')) {
+            $query->where('warehouse_id', $request->warehouse_id);
+        }
+
+        $defaultPerPage = \App\Modules\Core\Models\SystemSetting::getVal('display.per_page', 10);
+        $perPage = $request->input('per_page', $defaultPerPage);
+        if (!in_array((int)$perPage, [10, 20, 50, 100])) {
+            $perPage = $defaultPerPage;
+        }
+        $docs = $query->orderByDesc('created_at')
+            ->paginate($perPage)
+            ->withQueryString()
+            ->through(function ($doc) {
+                return [
+                    'id' => (string) $doc->id,
+                    'doc_no' => $doc->doc_no,
+                    'status' => $doc->status,
+                    'warehouse_name' => $doc->warehouse->name,
+                    'reason' => $doc->reason,
+                    'created_at' => $doc->created_at->format('Y-m-d H:i'),
+                    'posted_at' => $doc->posted_at ? $doc->posted_at->format('Y-m-d H:i') : '-',
+                    'created_by' => $doc->createdBy?->name,
+                    'remarks' => $doc->remarks,
+                ];
+            });
+
+        return Inertia::render('Inventory/Adjust/Index', [
+            'docs' => $docs,
+            'warehouses' => Warehouse::select('id', 'name')->get()->map(fn($w) => ['id' => (string)$w->id, 'name' => $w->name]),
+            'filters' => $request->only(['warehouse_id', 'search', 'per_page']),
+        ]);
+    }
+
+    public function store(Request $request)
+    {
+        // 模式 1: 從盤點單建立
+        if ($request->filled('count_doc_id')) {
+            $countDoc = InventoryCountDoc::findOrFail($request->count_doc_id);
+            if ($countDoc->status !== 'completed') {
+                $errorMsg = $countDoc->status === 'no_adjust' 
+                    ? '此盤點單無庫存差異，無需建立盤調單' 
+                    : '只有已完成盤點的單據可以建立盤調單';
+                return redirect()->back()->with('error', $errorMsg);
+            }
+            
+            // 檢查是否已存在對應的盤調單 (避免重複建立)
+            if (InventoryAdjustDoc::where('count_doc_id', $countDoc->id)->exists()) {
+                return redirect()->back()->with('error', '此盤點單已建立過盤調單');
+            }
+
+            $doc = $this->adjustService->createFromCountDoc($countDoc, auth()->id());
+                
+            return redirect()->route('inventory.adjust.show', [$doc->id])
+                ->with('success', '已從盤點單生成盤調單');
+        }
+
+        // 模式 2: 一般手動調整 (保留原始邏輯但更新訊息)
+        $validated = $request->validate([
+            'warehouse_id' => 'required',
+            'reason' => 'required|string',
+            'remarks' => 'nullable|string',
+        ]);
+
+        $doc = $this->adjustService->createDoc(
+            $validated['warehouse_id'],
+            $validated['reason'],
+            $validated['remarks'],
+            auth()->id()
+        );
+
+        return redirect()->route('inventory.adjust.show', [$doc->id])
+            ->with('success', '已建立盤調單');
+    }
+
+    /**
+     * API: 獲取可盤調的已完成盤點單 (支援掃描單號)
+     */
+    public function getPendingCounts(Request $request)
+    {
+        $query = InventoryCountDoc::where('status', 'completed')
+            ->whereNotExists(function ($query) {
+                $query->select(DB::raw(1))
+                    ->from('inventory_adjust_docs')
+                    ->whereColumn('inventory_adjust_docs.count_doc_id', 'inventory_count_docs.id');
+            });
+
+        if ($request->filled('search')) {
+            $search = $request->search;
+            $query->where('doc_no', 'like', "%{$search}%");
+        }
+
+        $counts = $query->limit(10)->get()->map(function($c) {
+            return [
+                'id' => (string)$c->id,
+                'doc_no' => $c->doc_no,
+                'warehouse_name' => $c->warehouse->name,
+                'completed_at' => $c->completed_at->format('Y-m-d H:i'),
+            ];
+        });
+
+        return response()->json($counts);
+    }
+
+    public function update(Request $request, InventoryAdjustDoc $doc)
+    {
+        $action = $request->input('action', 'update');
+
+        if ($action === 'post') {
+            if ($doc->status !== 'draft') {
+                return redirect()->back()->with('error', '只有草稿狀態的單據可以過帳');
+            }
+            $this->adjustService->post($doc, auth()->id());
+            return redirect()->back()->with('success', '單據已過帳');
+        }
+
+        if ($action === 'void') {
+            if ($doc->status !== 'draft') {
+                return redirect()->back()->with('error', '只有草稿狀態的單據可以作廢');
+            }
+            $this->adjustService->void($doc, auth()->id());
+            return redirect()->back()->with('success', '單據已作廢');
+        }
+
+        // 一般更新 (更新品項與基本資訊)
+        if ($doc->status !== 'draft') {
+            return redirect()->back()->with('error', '只有草稿狀態的單據可以修改');
+        }
+
+        $request->validate([
+            'reason' => 'required|string',
+            'remarks' => 'nullable|string',
+            'items' => 'required|array|min:1',
+            'items.*.product_id' => 'required',
+            'items.*.adjust_qty' => 'required|numeric',
+        ]);
+
+        $doc->update([
+            'reason' => $request->reason,
+            'remarks' => $request->remarks,
+        ]);
+
+        $this->adjustService->updateItems($doc, $request->items);
+
+        return redirect()->back()->with('success', '單據已更新');
+    }
+
+    public function show(InventoryAdjustDoc $doc)
+    {
+        $doc->load(['items.product.baseUnit', 'createdBy', 'postedBy', 'warehouse', 'countDoc']);
+
+        // Pre-fetch relevant Inventory information (mainly for expiry date)
+        $inventoryMap = \App\Modules\Inventory\Models\Inventory::withTrashed()
+            ->where('warehouse_id', $doc->warehouse_id)
+            ->whereIn('product_id', $doc->items->pluck('product_id'))
+            ->whereIn('batch_number', $doc->items->pluck('batch_number'))
+            ->get()
+            ->mapWithKeys(function ($inv) {
+                return [$inv->product_id . '-' . $inv->batch_number => $inv];
+            });
+
+        $docData = [
+            'id' => (string) $doc->id,
+            'doc_no' => $doc->doc_no,
+            'warehouse_id' => (string) $doc->warehouse_id,
+            'warehouse_name' => $doc->warehouse->name,
+            'status' => $doc->status,
+            'reason' => $doc->reason,
+            'remarks' => $doc->remarks,
+            'created_at' => $doc->created_at->format('Y-m-d H:i'),
+            'created_by' => $doc->createdBy?->name,
+            'count_doc_id' => $doc->count_doc_id ? (string)$doc->count_doc_id : null,
+            'count_doc_no' => $doc->countDoc?->doc_no,
+            'items' => $doc->items->map(function ($item) use ($inventoryMap) {
+                $inv = $inventoryMap->get($item->product_id . '-' . $item->batch_number);
+                return [
+                    'id' => (string) $item->id,
+                    'product_id' => (string) $item->product_id,
+                    'product_name' => $item->product->name,
+                    'product_code' => $item->product->code,
+                    'batch_number' => $item->batch_number,
+                    'expiry_date' => $inv && $inv->expiry_date ? $inv->expiry_date->format('Y-m-d') : null,
+                    'unit' => $item->product->baseUnit?->name,
+                    'qty_before' => (float) $item->qty_before,
+                    'adjust_qty' => (float) $item->adjust_qty,
+                    'notes' => $item->notes,
+                ];
+            }),
+        ];
+
+        return Inertia::render('Inventory/Adjust/Show', [
+            'doc' => $docData,
+        ]);
+    }
+
+    public function destroy(InventoryAdjustDoc $doc)
+    {
+        if ($doc->status !== 'draft') {
+            return redirect()->back()->with('error', '只能刪除草稿狀態的單據');
+        }
+
+
+
+        $doc->items()->delete();
+        $doc->delete();
+
+        return redirect()->route('inventory.adjust.index')
+            ->with('success', '盤調單已刪除');
+    }
+}

app/Modules/Inventory/Controllers/CountDocController.php

@@ -0,0 +1,239 @@
+<?php
+
+namespace App\Modules\Inventory\Controllers;
+
+use App\Http\Controllers\Controller;
+use App\Modules\Inventory\Models\InventoryCountDoc;
+use App\Modules\Inventory\Models\Warehouse;
+use App\Modules\Inventory\Services\CountService;
+use Illuminate\Http\Request;
+use Inertia\Inertia;
+
+class CountDocController extends Controller
+{
+    protected $countService;
+
+    public function __construct(CountService $countService)
+    {
+        $this->countService = $countService;
+    }
+
+    public function index(Request $request)
+    {
+        $query = InventoryCountDoc::query()
+            ->with(['createdBy', 'completedBy', 'warehouse']);
+
+        if ($request->filled('warehouse_id')) {
+            $query->where('warehouse_id', $request->warehouse_id);
+        }
+
+        if ($request->filled('search')) {
+            $search = $request->search;
+            $query->where(function ($q) use ($search) {
+                $q->where('doc_no', 'like', "%{$search}%")
+                  ->orWhere('remarks', 'like', "%{$search}%");
+            });
+        }
+
+        $defaultPerPage = \App\Modules\Core\Models\SystemSetting::getVal('display.per_page', 10);
+        $perPage = $request->input('per_page', $defaultPerPage);
+        
+        if (!in_array((int)$perPage, [10, 20, 50, 100])) {
+            $perPage = $defaultPerPage;
+        }
+
+        $countQuery = function ($query) {
+            $query->whereNotNull('counted_qty');
+        };
+
+        $docs = $query->withCount(['items', 'items as counted_items_count' => $countQuery])
+            ->orderByDesc('created_at')
+            ->paginate($perPage)
+            ->withQueryString()
+            ->through(function ($doc) {
+                return [
+                    'id' => (string) $doc->id,
+                    'doc_no' => $doc->doc_no,
+                    'status' => $doc->status,
+                    'warehouse_name' => $doc->warehouse->name,
+                    'snapshot_date' => $doc->snapshot_date ? $doc->snapshot_date->format('Y-m-d H:i') : '-',
+                    'completed_at' => $doc->completed_at ? $doc->completed_at->format('Y-m-d H:i') : '-',
+                    'created_by' => $doc->createdBy?->name,
+                    'remarks' => $doc->remarks,
+                    'total_items' => $doc->items_count,
+                    'counted_items' => $doc->counted_items_count,
+                ];
+            });
+
+        return Inertia::render('Inventory/Count/Index', [
+            'docs' => $docs,
+            'warehouses' => Warehouse::select('id', 'name')->get()->map(fn($w) => ['id' => (string)$w->id, 'name' => $w->name]),
+            'filters' => $request->only(['warehouse_id', 'search', 'per_page']),
+        ]);
+    }
+
+    public function store(Request $request)
+    {
+        $validated = $request->validate([
+            'warehouse_id' => 'required|exists:warehouses,id',
+            'remarks' => 'nullable|string|max:255',
+        ]);
+
+        $doc = $this->countService->createDoc(
+            $validated['warehouse_id'],
+            $validated['remarks'] ?? null,
+            auth()->id()
+        );
+
+        // 自動執行快照
+        $this->countService->snapshot($doc, false);
+
+        return redirect()->route('inventory.count.show', [$doc->id])
+            ->with('success', '已建立盤點單並完成庫存快照');
+    }
+
+    public function show(InventoryCountDoc $doc)
+    {
+        $doc->load(['items.product.baseUnit', 'createdBy', 'completedBy', 'warehouse']);
+
+        // 預先抓取相關的 Inventory 資訊 (主要為了取得效期)
+        $inventoryMap = \App\Modules\Inventory\Models\Inventory::withTrashed()
+            ->where('warehouse_id', $doc->warehouse_id)
+            ->whereIn('product_id', $doc->items->pluck('product_id'))
+            ->whereIn('batch_number', $doc->items->pluck('batch_number'))
+            ->get()
+            ->mapWithKeys(function ($inv) {
+                return [$inv->product_id . '-' . $inv->batch_number => $inv];
+            });
+
+        $docData = [
+            'id' => (string) $doc->id,
+            'doc_no' => $doc->doc_no,
+            'warehouse_id' => (string) $doc->warehouse_id,
+            'warehouse_name' => $doc->warehouse->name,
+            'status' => $doc->status,
+            'remarks' => $doc->remarks,
+            'snapshot_date' => $doc->snapshot_date ? $doc->snapshot_date->format('Y-m-d H:i') : null,
+            'created_by' => $doc->createdBy?->name,
+            'items' => $doc->items->map(function ($item) use ($inventoryMap) {
+                $key = $item->product_id . '-' . $item->batch_number;
+                $inv = $inventoryMap->get($key);
+                
+                return [
+                    'id' => (string) $item->id,
+                    'product_name' => $item->product->name,
+                    'product_code' => $item->product->code,
+                    'batch_number' => $item->batch_number,
+                    'expiry_date' => $inv && $inv->expiry_date ? $inv->expiry_date->format('Y-m-d') : null, // 新增效期
+                    'unit' => $item->product->baseUnit?->name,
+                    'system_qty' => (float) $item->system_qty,
+                    'counted_qty' => is_null($item->counted_qty) ? '' : (float) $item->counted_qty,
+                    'diff_qty' => (float) $item->diff_qty,
+                    'notes' => $item->notes,
+                ];
+            }),
+        ];
+
+        return Inertia::render('Inventory/Count/Show', [
+            'doc' => $docData,
+        ]);
+    }
+
+    public function print(InventoryCountDoc $doc)
+    {
+        $doc->load(['items.product.baseUnit', 'createdBy', 'completedBy', 'warehouse']);
+
+        $docData = [
+            'id' => (string) $doc->id,
+            'doc_no' => $doc->doc_no,
+            'warehouse_name' => $doc->warehouse->name,
+            'snapshot_date' => $doc->snapshot_date ? $doc->snapshot_date->format('Y-m-d') : date('Y-m-d'), // Use date only
+            'created_at' => $doc->created_at->format('Y-m-d'),
+            'print_date' => date('Y-m-d'),
+            'created_by' => $doc->createdBy?->name,
+            'items' => $doc->items->map(function ($item) {
+                return [
+                    'id' => (string) $item->id,
+                    'product_name' => $item->product->name,
+                    'product_code' => $item->product->code,
+                    'specification' => $item->product->specification,
+                    'unit' => $item->product->baseUnit?->name,
+                    'quantity' => (float) ($item->counted_qty ?? $item->system_qty), // Default to system qty if counted is null, or just counted? User wants "Count Sheet" -> maybe blank if not counted?
+                    // Actually, if it's "Completed", we show counted. If it's "Pending", we usually show blank or system.
+                    // The 'Show' page logic suggests we show counted_qty.
+                    'counted_qty' => $item->counted_qty,
+                    'notes' => $item->notes,
+                ];
+            }),
+        ];
+
+        return Inertia::render('Inventory/Count/Print', [
+            'doc' => $docData,
+        ]);
+    }
+
+    public function update(Request $request, InventoryCountDoc $doc)
+    {
+        if ($doc->status === 'completed') {
+            return redirect()->back()->with('error', '此盤點單已完成，無法修改');
+        }
+
+        $validated = $request->validate([
+            'items' => 'array',
+            'items.*.id' => 'required|exists:inventory_count_items,id',
+            'items.*.counted_qty' => 'nullable|numeric|min:0',
+            'items.*.notes' => 'nullable|string',
+        ]);
+
+        if (isset($validated['items'])) {
+            $this->countService->updateCount($doc, $validated['items']);
+        }
+
+        // 重新讀取以獲取最新狀態
+        $doc->refresh();
+
+        if ($doc->status === 'completed') {
+            return redirect()->route('inventory.count.index')
+                ->with('success', '盤點完成，單據已自動存檔並完成。');
+        }
+
+        return redirect()->back()->with('success', '盤點資料已暫存');
+    }
+
+    public function reopen(InventoryCountDoc $doc)
+    {
+        // 權限檢查 (通常僅允許有權限者執行，例如 inventory.adjust)
+        // 注意：前端已經用 <Can> 保護按鈕，後端這裡最好也加上檢查
+        if (!auth()->user()->can('inventory.adjust')) {
+            abort(403);
+        }
+
+        if (!in_array($doc->status, ['completed', 'no_adjust'])) {
+            return redirect()->back()->with('error', '僅能針對已完成或無需盤調的盤點單重新開啟盤點');
+        }
+        
+        // 執行取消核准邏輯
+        $doc->update([
+            'status' => 'counting',    // 回復為盤點中
+            'completed_at' => null,    // 清除完成時間
+            'completed_by' => null,    // 清除完成者
+        ]);
+
+        return redirect()->back()->with('success', '已重新開啟盤點，單據回復為盤點中狀態');
+    }
+
+    public function destroy(InventoryCountDoc $doc)
+    {
+        if ($doc->status === 'completed') {
+            return redirect()->back()->with('error', '已完成的盤點單無法刪除');
+        }
+
+        // Activity Log handled by Model Trait
+
+        $doc->items()->delete();
+        $doc->delete();
+
+        return redirect()->route('inventory.count.index')
+            ->with('success', '盤點單已刪除');
+    }
+}

app/Modules/Inventory/Controllers/GoodsReceiptController.php

@@ -0,0 +1,488 @@
+<?php
+
+namespace App\Modules\Inventory\Controllers;
+
+use App\Http\Controllers\Controller;
+use App\Modules\Inventory\Services\GoodsReceiptService;
+use App\Modules\Inventory\Services\InventoryService;
+use App\Modules\Procurement\Contracts\ProcurementServiceInterface;
+use Illuminate\Http\Request;
+use Inertia\Inertia;
+use App\Modules\Inventory\Models\GoodsReceipt;
+use Illuminate\Support\Facades\DB;
+use App\Modules\Inventory\Services\DuplicateCheckService;
+
+class GoodsReceiptController extends Controller
+{
+    protected $goodsReceiptService;
+    protected $inventoryService;
+    protected $procurementService;
+    protected $duplicateCheckService;
+
+    public function __construct(
+        GoodsReceiptService $goodsReceiptService,
+        InventoryService $inventoryService,
+        ProcurementServiceInterface $procurementService,
+        DuplicateCheckService $duplicateCheckService
+    ) {
+        $this->goodsReceiptService = $goodsReceiptService;
+        $this->inventoryService = $inventoryService;
+        $this->procurementService = $procurementService;
+        $this->duplicateCheckService = $duplicateCheckService;
+    }
+
+    public function index(Request $request)
+    {
+        $query = GoodsReceipt::query()
+            ->select(['id', 'code', 'type', 'warehouse_id', 'vendor_id', 'received_date', 'status', 'created_at'])
+            ->with(['warehouse'])
+            ->withSum('items', 'total_amount');
+
+        // 關鍵字搜尋（單號）
+        if ($request->filled('search')) {
+            $search = $request->input('search');
+            $query->where('code', 'like', "%{$search}%");
+        }
+
+        // 狀態篩選
+        if ($request->filled('status') && $request->input('status') !== 'all') {
+            $query->where('status', $request->input('status'));
+        }
+
+        // 倉庫篩選
+        if ($request->filled('warehouse_id') && $request->input('warehouse_id') !== 'all') {
+            $query->where('warehouse_id', $request->input('warehouse_id'));
+        }
+
+        // 日期範圍篩選
+        if ($request->filled('date_start')) {
+            $query->whereDate('received_date', '>=', $request->input('date_start'));
+        }
+        if ($request->filled('date_end')) {
+            $query->whereDate('received_date', '<=', $request->input('date_end'));
+        }
+
+        // 每頁筆數
+        $defaultPerPage = \App\Modules\Core\Models\SystemSetting::getVal('display.per_page', 10);
+        $perPage = $request->input('per_page', $defaultPerPage);
+        if (!in_array((int)$perPage, [10, 20, 50, 100])) {
+            $perPage = $defaultPerPage;
+        }
+
+        $receipts = $query->orderBy('created_at', 'desc')
+            ->paginate($perPage)
+            ->withQueryString();
+
+        // Manual Hydration for Vendors (Cross-Module)
+        $vendorIds = collect($receipts->items())->pluck('vendor_id')->unique()->filter()->toArray();
+        $vendors = $this->procurementService->getVendorsByIds($vendorIds)->keyBy('id');
+
+        $receipts->getCollection()->transform(function ($receipt) use ($vendors) {
+            $receipt->vendor = $vendors->get($receipt->vendor_id);
+            return $receipt;
+        });
+
+        // 取得倉庫列表用於篩選
+        $warehouses = $this->inventoryService->getAllWarehouses();
+
+        return Inertia::render('Inventory/GoodsReceipt/Index', [
+            'receipts' => $receipts,
+            'filters' => $request->only(['search', 'status', 'warehouse_id', 'date_start', 'date_end', 'per_page']),
+            'warehouses' => $warehouses,
+        ]);
+    }
+
+    public function show(Request $request, $id)
+    {
+        $receipt = GoodsReceipt::with([
+            'warehouse',
+            'items.product.category',
+            'items.product.baseUnit'
+        ])->findOrFail($id);
+
+        // Manual Hydration for Vendor (Cross-Module)
+        if ($receipt->vendor_id) {
+            $receipt->vendor = $this->procurementService->getVendorsByIds([$receipt->vendor_id])->first();
+        }
+
+        // 手動計算統計資訊 (如果 Model 沒有定義對應的 Attribute)
+        $receipt->items_sum_total_amount = $receipt->items->sum('total_amount');
+
+        return Inertia::render('Inventory/GoodsReceipt/Show', [
+            'receipt' => $receipt,
+            'navigation' => [
+                'from' => $request->query('from'),
+                'from_id' => $request->query('from_id'),
+                'from_label' => $request->query('from_label'),
+            ]
+        ]);
+    }
+
+    public function create()
+    {
+        // 取得待進貨的採購單列表（用於標準採購類型選擇）
+        $pendingPOs = $this->procurementService->getPendingPurchaseOrders();
+        
+        // 提取所有產品 ID 以便跨模組水和資料
+        $productIds = $pendingPOs->flatMap(fn($po) => $po->items->pluck('product_id'))->unique()->filter()->toArray();
+        $products = $this->inventoryService->getProductsByIds($productIds)->keyBy('id');
+
+        // 處理採購單資料，計算剩餘可收貨數量
+        $formattedPOs = $pendingPOs->map(function ($po) use ($products) {
+            return [
+                'id' => $po->id,
+                'code' => $po->code,
+                'status' => $po->status,
+                'supplierId' => $po->vendor_id, // Alias for frontend
+                'vendor_id' => $po->vendor_id,
+                'vendor_name' => $po->vendor?->name ?? '',
+                'warehouse_id' => $po->warehouse_id,
+                'order_date' => $po->order_date,
+                'items' => $po->items->map(function ($item) use ($products) {
+                    $product = $products->get($item->product_id);
+                    $remaining = max(0, $item->quantity - ($item->received_quantity ?? 0));
+                    
+                    // 獲取單位名稱
+                    $baseUnitName = $product?->baseUnit?->name ?? '個';
+                    $largeUnitName = $product?->largeUnit?->name ?? '';
+                    
+                    // 判斷當前採購使用的單位 (這需要從 PurchaseOrderItem 獲取 unit_id 並與產品的 large_unit_id 比較)
+                    $selectedUnit = 'base';
+                    if ($item->unit_id && $product && $item->unit_id == $product->large_unit_id) {
+                        $selectedUnit = 'large';
+                    }
+
+                    return [
+                        'id' => $item->id,
+                        'productId' => $item->product_id, // Alias for frontend
+                        'product_id' => $item->product_id,
+                        'productName' => $product?->name ?? '', // Alias for frontend
+                        'product_name' => $product?->name ?? '',
+                        'product_code' => $product?->code ?? '',
+                        'unit' => $product?->baseUnit?->name ?? '個', // 預設顯示文字
+                        'selectedUnit' => $selectedUnit,
+                        'base_unit_id' => $product?->base_unit_id,
+                        'base_unit_name' => $baseUnitName,
+                        'large_unit_id' => $product?->large_unit_id,
+                        'large_unit_name' => $largeUnitName,
+                        'conversion_rate' => $product?->conversion_rate ?? 1,
+                        'quantity' => $item->quantity,
+                        'received_quantity' => $item->received_quantity ?? 0,
+                        'remaining' => $remaining,
+                        'unitPrice' => $item->unit_price, // Alias for frontend
+                        'unit_price' => $item->unit_price,
+                    ];
+                })->filter(fn($item) => $item['remaining'] > 0)->values(),
+            ];
+        })->filter(fn($po) => $po['items']->count() > 0)->values();
+
+        // 取得所有廠商列表（用於雜項入庫/其他類型選擇）
+        $vendors = $this->procurementService->getAllVendors();
+
+        return Inertia::render('Inventory/GoodsReceipt/Create', [
+            'warehouses' => $this->inventoryService->getAllWarehouses(),
+            'pendingPurchaseOrders' => $formattedPOs,
+            'vendors' => $vendors,
+        ]);
+    }
+
+    public function store(Request $request)
+    {
+        $validated = $request->validate($this->getItemValidationRules());
+
+        try {
+            $this->goodsReceiptService->store($request->all());
+            return redirect()->route('goods-receipts.index')->with('success', '進貨草稿已建立');
+        } catch (\Exception $e) {
+            return back()->with('error', $e->getMessage());
+        }
+    }
+
+    /**
+     * 編輯進貨單（僅草稿/退回狀態）
+     */
+    public function edit(GoodsReceipt $goodsReceipt)
+    {
+        if (!in_array($goodsReceipt->status, [GoodsReceipt::STATUS_DRAFT, 'rejected'])) {
+            return redirect()->route('goods-receipts.show', $goodsReceipt->id)
+                ->with('error', '只有草稿或被退回的進貨單可以編輯。');
+        }
+
+        // 載入品項與產品資訊
+        $goodsReceipt->load('items');
+
+        // 取得品項關聯的商品資訊
+        $productIds = $goodsReceipt->items->pluck('product_id')->unique()->toArray();
+        $products = $this->inventoryService->getProductsByIds($productIds)->keyBy('id');
+
+        // 如果是標準採購，取得對應採購單的品項，以帶出預定數量與已收數量
+        $poItems = collect();
+        $po = null;
+        if ($goodsReceipt->type === 'standard' && $goodsReceipt->purchase_order_id) {
+            $po = clone $this->procurementService->getPurchaseOrdersByIds([$goodsReceipt->purchase_order_id], ['items', 'vendor'])->first();
+            if ($po) {
+                $poItems = $po->items->keyBy('id');
+            }
+        }
+
+        // 格式化品項資料
+        $formattedItems = $goodsReceipt->items->map(function ($item) use ($products, $poItems) {
+            $product = $products->get($item->product_id);
+            $poItem = $poItems->get($item->purchase_order_item_id);
+            
+            // 判斷單位
+            $selectedUnit = 'base';
+            if ($poItem && $product && $poItem->unit_id && $poItem->unit_id == $product->large_unit_id) {
+                $selectedUnit = 'large';
+            }
+
+            return [
+                'product_id' => $item->product_id,
+                'purchase_order_item_id' => $item->purchase_order_item_id,
+                'product_name' => $product?->name ?? '',
+                'product_code' => $product?->code ?? '',
+                'unit' => $poItem && $selectedUnit === 'large' ? ($product?->largeUnit?->name ?? '') : ($product?->baseUnit?->name ?? '個'),
+                'selectedUnit' => $selectedUnit,
+                'base_unit_id' => $product?->base_unit_id,
+                'base_unit_name' => $product?->baseUnit?->name ?? '個',
+                'large_unit_id' => $product?->large_unit_id,
+                'large_unit_name' => $product?->largeUnit?->name ?? '',
+                'conversion_rate' => $product?->conversion_rate ?? 1,
+                'quantity_ordered' => $poItem ? $poItem->quantity : null,
+                'quantity_received_so_far' => $poItem ? ($poItem->received_quantity ?? 0) : null,
+                'quantity_received' => (float) $item->quantity_received,
+                'unit_price' => (float) $item->unit_price,
+                'subtotal' => (float) $item->total_amount,
+                'batch_number' => $item->batch_number ?? '',
+                'batchMode' => 'existing',
+                'originCountry' => 'TW',
+                'expiry_date' => $item->expiry_date ?? '',
+            ];
+        })->values();
+
+        // 同 create() 一樣傳入所需的 props
+        $pendingPOs = $this->procurementService->getPendingPurchaseOrders();
+        $productIdsForPOs = $pendingPOs->flatMap(fn($po) => $po->items->pluck('product_id'))->unique()->filter()->toArray();
+        $productsForPOs = $this->inventoryService->getProductsByIds($productIdsForPOs)->keyBy('id');
+
+        $formattedPOs = $pendingPOs->map(function ($po) use ($productsForPOs) {
+            return [
+                'id' => $po->id,
+                'code' => $po->code,
+                'status' => $po->status,
+                'supplierId' => $po->vendor_id,
+                'vendor_id' => $po->vendor_id,
+                'vendor_name' => $po->vendor?->name ?? '',
+                'warehouse_id' => $po->warehouse_id,
+                'order_date' => $po->order_date,
+                'items' => $po->items->map(function ($item) use ($productsForPOs) {
+                    $product = $productsForPOs->get($item->product_id);
+                    $remaining = max(0, $item->quantity - ($item->received_quantity ?? 0));
+                    
+                    $selectedUnit = 'base';
+                    if ($item->unit_id && $product && $item->unit_id == $product->large_unit_id) {
+                        $selectedUnit = 'large';
+                    }
+
+                    return [
+                        'id' => $item->id,
+                        'productId' => $item->product_id,
+                        'product_id' => $item->product_id,
+                        'productName' => $product?->name ?? '',
+                        'product_name' => $product?->name ?? '',
+                        'product_code' => $product?->code ?? '',
+                        'unit' => $item->unit_id && $product && $item->unit_id == $product->large_unit_id ? ($product?->largeUnit?->name ?? '') : ($product?->baseUnit?->name ?? '個'),
+                        'selectedUnit' => $selectedUnit,
+                        'base_unit_id' => $product?->base_unit_id,
+                        'base_unit_name' => $product?->baseUnit?->name ?? '個',
+                        'large_unit_id' => $product?->large_unit_id,
+                        'large_unit_name' => $product?->largeUnit?->name ?? '',
+                        'conversion_rate' => $product?->conversion_rate ?? 1,
+                        'quantity' => $item->quantity,
+                        'received_quantity' => $item->received_quantity ?? 0,
+                        'remaining' => $remaining,
+                        'unitPrice' => $item->unit_price,
+                        'unit_price' => $item->unit_price,
+                    ];
+                })->filter(fn($item) => $item['remaining'] > 0)->values(),
+            ];
+        })->filter(fn($po) => $po['items']->count() > 0)->values();
+
+        $vendors = $this->procurementService->getAllVendors();
+
+        // Manual Hydration for Vendor
+        $vendor = null;
+        if ($goodsReceipt->vendor_id) {
+            $vendor = $this->procurementService->getVendorsByIds([$goodsReceipt->vendor_id])->first();
+        }
+
+        // 格式化 Purchase Order 給前端顯示
+        $formattedPO = null;
+        if ($po) {
+            $formattedPO = [
+                'id' => $po->id,
+                'code' => $po->code,
+                'status' => $po->status,
+                'vendor_id' => $po->vendor_id,
+                'vendor_name' => $po->vendor?->name ?? '',
+                'warehouse_id' => $po->warehouse_id,
+                'order_date' => $po->order_date,
+                'items' => $po->items->toArray(), // simplified since we just need items.length for display
+            ];
+        }
+
+        return Inertia::render('Inventory/GoodsReceipt/Create', [
+            'warehouses' => $this->inventoryService->getAllWarehouses(),
+            'pendingPurchaseOrders' => $formattedPOs,
+            'vendors' => $vendors,
+            'receipt' => [
+                'id' => $goodsReceipt->id,
+                'code' => $goodsReceipt->code,
+                'type' => $goodsReceipt->type,
+                'warehouse_id' => $goodsReceipt->warehouse_id,
+                'vendor_id' => $goodsReceipt->vendor_id,
+                'vendor' => $vendor,
+                'purchase_order_id' => $goodsReceipt->purchase_order_id,
+                'purchase_order' => $formattedPO,
+                'received_date' => \Carbon\Carbon::parse($goodsReceipt->received_date)->format('Y-m-d'),
+                'remarks' => $goodsReceipt->remarks,
+                'items' => $formattedItems,
+            ],
+        ]);
+    }
+
+    /**
+     * 更新進貨單
+     */
+    public function update(Request $request, GoodsReceipt $goodsReceipt)
+    {
+        $validated = $request->validate($this->getItemValidationRules());
+
+        try {
+            $this->goodsReceiptService->update($goodsReceipt, $request->all());
+            return redirect()->route('goods-receipts.show', $goodsReceipt->id)->with('success', '進貨單已更新');
+        } catch (\Exception $e) {
+            return back()->with('error', $e->getMessage());
+        }
+    }
+
+    /**
+     * 取得品項驗證規則
+     */
+    private function getItemValidationRules(): array
+    {
+        return [
+            'warehouse_id' => 'required|exists:warehouses,id',
+            'type' => 'required|in:standard,miscellaneous,other',
+            'purchase_order_id' => 'nullable|required_if:type,standard|exists:purchase_orders,id',
+            'vendor_id' => 'nullable|integer',
+            'received_date' => 'required|date',
+            'remarks' => 'nullable|string',
+            'items' => 'required|array|min:1',
+            'items.*.product_id' => 'required|integer|exists:products,id',
+            'items.*.purchase_order_item_id' => 'nullable|required_if:type,standard|integer',
+            'items.*.quantity_received' => 'required|numeric|min:0',
+            'items.*.unit_price' => 'nullable|numeric|min:0',
+            'items.*.subtotal' => 'nullable|numeric|min:0',
+            'items.*.batch_number' => 'nullable|string',
+            'items.*.expiry_date' => 'nullable|date',
+            'force' => 'nullable|boolean',
+        ];
+    }
+
+    /**
+     * 預檢重複進貨 API
+     */
+    public function checkDuplicate(Request $request)
+    {
+        $result = $this->duplicateCheckService->checkDuplicateReceipt($request->all());
+        return response()->json($result);
+    }
+
+    public function submit(GoodsReceipt $goodsReceipt)
+    {
+        if (!auth()->user()->can('goods_receipts.edit')) {
+            return back()->with('error', '您沒有權限確認點收');
+        }
+
+        try {
+            $this->goodsReceiptService->submit($goodsReceipt);
+            return back()->with('success', '進貨單已點收完成，庫存已增加並拋轉應付帳款');
+        } catch (\Exception $e) {
+            return back()->with('error', $e->getMessage());
+        }
+    }
+
+    // API to search POs
+    public function searchPOs(Request $request)
+    {
+        $search = $request->input('query');
+        if (!$search) {
+            return response()->json([]);
+        }
+
+        $pos = $this->procurementService->searchPendingPurchaseOrders($search);
+        
+        return response()->json($pos);
+    }
+
+    // API to search Products for Manual Entry
+    // 支援 query='*' 回傳所有商品（用於 SearchableSelect 下拉選單）
+    public function searchProducts(Request $request)
+    {
+        $search = $request->input('query');
+        if (!$search) {
+            return response()->json([]);
+        }
+
+        // 萬用字元：回傳所有商品
+        if ($search === '*') {
+            $products = $this->inventoryService->getProductsByName('');
+        } else {
+            $products = $this->inventoryService->getProductsByName($search);
+        }
+        
+        // Format for frontend
+        $mapped = $products->map(function($product) {
+            return [
+                'id' => $product->id,
+                'name' => $product->name,
+                'code' => $product->code,
+                'unit' => $product->baseUnit?->name ?? '個',
+                'price' => $product->purchase_price ?? 0,
+            ];
+        });
+
+        return response()->json($mapped);
+    }
+
+    // API to search Vendors
+    public function searchVendors(Request $request)
+    {
+        $search = $request->input('query');
+        if (!$search) {
+            return response()->json([]);
+        }
+
+        $vendors = $this->procurementService->searchVendors($search);
+        
+        return response()->json($vendors);
+    }
+
+    /**
+     * 刪除進貨單
+     */
+    public function destroy(GoodsReceipt $goodsReceipt)
+    {
+        // 只有有權限的人可以刪除
+        if (!auth()->user()->can('goods_receipts.delete')) {
+            return redirect()->back()->with('error', '您沒有權限刪除進貨單');
+        }
+
+        // 簡單刪除邏輯：刪除進貨單（品項由資料庫級聯刪除或手動處理）
+        // 注意：實務上可能需要處理已入庫的庫存回滾，但在這個簡易 ERP 中通常是行政刪除
+        $goodsReceipt->delete();
+
+        return redirect()->route('goods-receipts.index')->with('success', '進貨單已刪除');
+    }
+}

app/Modules/Inventory/Controllers/InventoryAnalysisController.php

@@ -0,0 +1,43 @@
+<?php
+
+namespace App\Modules\Inventory\Controllers;
+
+use App\Http\Controllers\Controller;
+use App\Modules\Inventory\Models\Category;
+use App\Modules\Inventory\Models\Warehouse;
+use App\Modules\Inventory\Services\TurnoverService;
+use Illuminate\Http\Request;
+use Inertia\Inertia;
+
+class InventoryAnalysisController extends Controller
+{
+    protected $turnoverService;
+
+    public function __construct(TurnoverService $turnoverService)
+    {
+        $this->turnoverService = $turnoverService;
+    }
+
+    public function index(Request $request)
+    {
+        $filters = $request->only([
+            'warehouse_id', 'category_id', 'search', 'per_page', 'sort_by', 'sort_order', 'status'
+        ]);
+
+        $defaultPerPage = \App\Modules\Core\Models\SystemSetting::getVal('display.per_page', 10);
+        $perPage = (int) $request->input('per_page', $defaultPerPage);
+        if (!in_array($perPage, [10, 20, 50, 100])) {
+            $perPage = $defaultPerPage;
+        }
+        $analysisData = $this->turnoverService->getAnalysisData($filters, $perPage);
+        $kpis = $this->turnoverService->getKPIs($filters);
+
+        return Inertia::render('Inventory/Analysis/Index', [
+            'analysisData' => $analysisData,
+            'kpis' => $kpis,
+            'warehouses' => Warehouse::select('id', 'name')->get(),
+            'categories' => Category::select('id', 'name')->get(),
+            'filters' => $filters,
+        ]);
+    }
+}

app/Modules/Inventory/Controllers/InventoryController.php

@@ -10,17 +10,26 @@ use Inertia\Inertia;
 use App\Modules\Inventory\Models\Warehouse;
 use App\Modules\Inventory\Models\Product;
 use App\Modules\Inventory\Models\Inventory;
+use App\Modules\Inventory\Models\InventoryTransaction;
 use App\Modules\Inventory\Models\WarehouseProductSafetyStock;
+use App\Modules\Inventory\Imports\InventoryImport;
+use App\Modules\Inventory\Exports\InventoryTemplateExport;
+use Maatwebsite\Excel\Facades\Excel;
+use Symfony\Component\HttpFoundation\BinaryFileResponse;
 
 use App\Modules\Core\Contracts\CoreServiceInterface;
 
 class InventoryController extends Controller
 {
     protected $coreService;
+    protected $inventoryService;
 
-    public function __construct(CoreServiceInterface $coreService)
-    {
+    public function __construct(
+        CoreServiceInterface $coreService,
+        \App\Modules\Inventory\Contracts\InventoryServiceInterface $inventoryService
+    ) {
         $this->coreService = $coreService;
+        $this->inventoryService = $inventoryService;
     }
 
     public function index(Request $request, Warehouse $warehouse)
@@ -32,7 +41,7 @@ class InventoryController extends Controller
             'inventories.lastIncomingTransaction',
             'inventories.lastOutgoingTransaction'
         ]);
-        $allProducts = Product::with('category')->get();
+        $allProducts = Product::select('id', 'name', 'code', 'category_id')->with('category:id,name')->get();
 
         // 1. 準備 availableProducts
         $availableProducts = $allProducts->map(function ($product) {
@@ -48,12 +57,40 @@ class InventoryController extends Controller
             ->pluck('safety_stock', 'product_id')
             ->mapWithKeys(fn($val, $key) => [(string)$key => (float)$val]);
 
-        // 3. 準備 inventories (批號分組)
-        $items = $warehouse->inventories()
-            ->with(['product.baseUnit', 'lastIncomingTransaction', 'lastOutgoingTransaction'])
-            ->get();
+        $query = $warehouse->inventories()
+            ->with(['product.baseUnit', 'lastIncomingTransaction', 'lastOutgoingTransaction']);
 
-        $inventories = $items->groupBy('product_id')->map(function ($batchItems) use ($safetyStockMap) {
+        // 加入搜尋過濾
+        if ($request->filled('search')) {
+            $search = $request->input('search');
+            $query->where(function ($q) use ($search) {
+                $q->where('batch_number', 'like', "%{$search}%")
+                    ->orWhere(\Illuminate\Support\Facades\DB::raw("CONCAT('BATCH-', inventories.id)"), 'like', "%{$search}%")
+                    ->orWhereHas('product', function ($pq) use ($search) {
+                        $pq->where('name', 'like', "%{$search}%")
+                            ->orWhere('code', 'like', "%{$search}%");
+                    });
+            });
+        }
+
+        // 加入類型過濾
+        if ($request->filled('type') && $request->input('type') !== 'all') {
+            $type = $request->input('type');
+            $query->whereHas('product.category', function ($cq) use ($type) {
+                $cq->where('name', $type);
+            });
+        }
+
+        $items = $query->get();
+
+        // 判斷是否為販賣機並調整分組
+        $isVending = $warehouse->type === 'vending';
+        
+        $inventories = $items->groupBy(function ($item) use ($isVending) {
+            return $isVending 
+                ? $item->product_id . '-' . ($item->location ?? 'NO-SLOT') 
+                : $item->product_id;
+        })->map(function ($batchItems) use ($safetyStockMap, $isVending) {
             $firstItem = $batchItems->first();
             $product = $firstItem->product;
             $totalQuantity = $batchItems->sum('quantity');
@@ -93,9 +130,10 @@ class InventoryController extends Controller
                         'safetyStock' => null, // 批號層級不再有安全庫存
                         'status' => '正常',
                         'batchNumber' => $inv->batch_number ?? 'BATCH-' . $inv->id,
+                        'location' => $inv->location,
                         'expiryDate' => $inv->expiry_date ? $inv->expiry_date->format('Y-m-d') : null,
-                        'lastInboundDate' => $inv->lastIncomingTransaction ? ($inv->lastIncomingTransaction->actual_time ? $inv->lastIncomingTransaction->actual_time->format('Y-m-d') : $inv->lastIncomingTransaction->created_at->format('Y-m-d')) : null,
-                        'lastOutboundDate' => $inv->lastOutgoingTransaction ? ($inv->lastOutgoingTransaction->actual_time ? $inv->lastOutgoingTransaction->actual_time->format('Y-m-d') : $inv->lastOutgoingTransaction->created_at->format('Y-m-d')) : null,
+                        'lastInboundDate' => $inv->lastIncomingTransaction ? ($inv->lastIncomingTransaction->actual_time ? substr($inv->lastIncomingTransaction->actual_time, 0, 10) : $inv->lastIncomingTransaction->created_at->format('Y-m-d')) : null,
+                        'lastOutboundDate' => $inv->lastOutgoingTransaction ? ($inv->lastOutgoingTransaction->actual_time ? substr($inv->lastOutgoingTransaction->actual_time, 0, 10) : $inv->lastOutgoingTransaction->created_at->format('Y-m-d')) : null,
                     ];
                 })->values(),
             ];
@@ -129,17 +167,19 @@ class InventoryController extends Controller
     public function create(Warehouse $warehouse)
     {
        // ... (unchanged) ...
-        $products = Product::with(['baseUnit', 'largeUnit'])
-            ->select('id', 'name', 'code', 'base_unit_id', 'large_unit_id', 'conversion_rate')
+        $products = Product::select('id', 'name', 'code', 'barcode', 'base_unit_id', 'large_unit_id', 'conversion_rate', 'cost_price')
+            ->with(['baseUnit:id,name', 'largeUnit:id,name'])
             ->get()
             ->map(function ($product) {
             return [
                 'id' => (string) $product->id,
                 'name' => $product->name,
                 'code' => $product->code,
+                'barcode' => $product->barcode,
                 'baseUnit' => $product->baseUnit?->name ?? '個',
                 'largeUnit' => $product->largeUnit?->name, // 可能為 null
                 'conversionRate' => (float) $product->conversion_rate,
+                'costPrice' => (float) $product->cost_price,
             ];
         });
 
@@ -160,83 +200,28 @@ class InventoryController extends Controller
             'items.*.productId' => 'required|exists:products,id',
             'items.*.quantity' => 'required|numeric|min:0.01',
             'items.*.unit_cost' => 'nullable|numeric|min:0', // 新增成本驗證
-            'items.*.batchMode' => 'required|in:existing,new',
+            'items.*.batchMode' => 'required|in:existing,new,none',
             'items.*.inventoryId' => 'required_if:items.*.batchMode,existing|nullable|exists:inventories,id',
             'items.*.originCountry' => 'required_if:items.*.batchMode,new|nullable|string|max:2',
             'items.*.expiryDate' => 'nullable|date',
+            'items.*.location' => 'nullable|string|max:50',
         ]);
 
         return DB::transaction(function () use ($validated, $warehouse) {
-            foreach ($validated['items'] as $item) {
-                // ... (略，傳遞 unit_cost 交給 Service 處理) ...
-                // 這裡需要修改呼叫 Service 的地方或直接更新邏輯
-                // 為求快速，我將在此更新邏輯
-                
-                $inventory = null;
-
-                if ($item['batchMode'] === 'existing') {
-                    // 模式 A：選擇現有批號 (包含已刪除的也要能找回來累加)
-                    $inventory = Inventory::withTrashed()->findOrFail($item['inventoryId']);
-                    if ($inventory->trashed()) {
-                        $inventory->restore();
-                    }
-                    
-                    // 更新成本 (若有傳入)
-                    if (isset($item['unit_cost'])) {
-                        $inventory->unit_cost = $item['unit_cost'];
-                    }
-                } else {
-                    // 模式 B：建立新批號
-                    $originCountry = $item['originCountry'] ?? 'TW';
-                    $product = Product::find($item['productId']);
-                    
-                    $batchNumber = Inventory::generateBatchNumber(
-                        $product->code ?? 'UNK',
-                        $originCountry,
-                        $validated['inboundDate']
-                    );
-
-                    // 檢查是否存在
-                    $inventory = $warehouse->inventories()->withTrashed()->firstOrNew(
-                        [
-                            'product_id' => $item['productId'],
-                            'batch_number' => $batchNumber
-                        ],
-                        [
-                            'quantity' => 0,
-                            'unit_cost' => $item['unit_cost'] ?? 0, // 新增
-                            'total_value' => 0, // 稍後計算
-                            'arrival_date' => $validated['inboundDate'],
-                            'expiry_date' => $item['expiryDate'] ?? null,
-                            'origin_country' => $originCountry,
-                        ]
-                    );
-
-                    if ($inventory->trashed()) {
-                        $inventory->restore();
-                    }
-                }
-
-                $currentQty = $inventory->quantity;
-                $newQty = $currentQty + $item['quantity'];
-
-                $inventory->quantity = $newQty;
-                // 更新總價值
-                $inventory->total_value = $inventory->quantity * $inventory->unit_cost;
-                $inventory->save();
-
-                // 寫入異動紀錄
-                $inventory->transactions()->create([
-                    'type' => '手動入庫',
-                    'quantity' => $item['quantity'],
-                    'unit_cost' => $inventory->unit_cost, // 記錄成本
-                    'balance_before' => $currentQty,
-                    'balance_after' => $newQty,
-                    'reason' => $validated['reason'] . ($validated['notes'] ? ' - ' . $validated['notes'] : ''),
-                    'actual_time' => $validated['inboundDate'],
-                    'user_id' => auth()->id(),
-                ]);
+            // 修正時間精度：使用 Carbon 解析，若含時間則保留並補上秒數，若只有日期則補上當前時間
+            $dt = \Illuminate\Support\Carbon::parse($validated['inboundDate']);
+            if ($dt->hour === 0 && $dt->minute === 0 && $dt->second === 0) {
+                $dt->setTimeFrom(now());
+            } else {
+                $dt->setSecond(now()->second);
             }
+            $inboundDateTime = $dt->toDateTimeString();
+
+            $this->inventoryService->processIncomingInventory($warehouse, $validated['items'], [
+                'inboundDate' => $inboundDateTime,
+                'reason' => $validated['reason'],
+                'notes' => $validated['notes'] ?? '',
+            ]);
 
             return redirect()->route('warehouses.inventory.index', $warehouse->id)
                 ->with('success', '庫存記錄已儲存成功');
@@ -259,7 +244,8 @@ class InventoryController extends Controller
                     'originCountry' => $inventory->origin_country,
                     'expiryDate' => $inventory->expiry_date ? $inventory->expiry_date->format('Y-m-d') : null,
                     'quantity' => (float) $inventory->quantity,
-                    'unitCost' => (float) $inventory->unit_cost, // 新增
+                    'unitCost' => (float) $inventory->unit_cost,
+                    'location' => $inventory->location,
                 ];
             });
 
@@ -323,7 +309,7 @@ class InventoryController extends Controller
                 'balanceAfter' => (float) $tx->balance_after,
                 'reason' => $tx->reason,
                 'userName' => $user ? $user->name : '系統', // 手動對應
-                'actualTime' => $tx->actual_time ? $tx->actual_time->format('Y-m-d H:i') : $tx->created_at->format('Y-m-d H:i'),
+                'actualTime' => $tx->actual_time ? substr($tx->actual_time, 0, 16) : $tx->created_at->format('Y-m-d H:i'),
             ];
         });
 
@@ -364,81 +350,7 @@ class InventoryController extends Controller
         ]);
 
         return DB::transaction(function () use ($validated, $inventory) {
-            $currentQty = (float) $inventory->quantity;
-            $newQty = (float) $validated['quantity'];
-            
-            // 判斷是否來自調整彈窗 (包含 operation 參數)
-            $isAdjustment = isset($validated['operation']);
-            $changeQty = 0;
-
-            if ($isAdjustment) {
-                switch ($validated['operation']) {
-                    case 'add':
-                        $changeQty = (float) $validated['quantity'];
-                        $newQty = $currentQty + $changeQty;
-                        break;
-                    case 'subtract':
-                        $changeQty = -(float) $validated['quantity'];
-                        $newQty = $currentQty + $changeQty;
-                        break;
-                    case 'set':
-                        $changeQty = $newQty - $currentQty;
-                        break;
-                }
-            } else {
-                // 來自編輯頁面，直接 Set
-                $changeQty = $newQty - $currentQty;
-            }
-
-            // 更新成本 (若有傳)
-            if (isset($validated['unit_cost'])) {
-                $inventory->unit_cost = $validated['unit_cost'];
-            }
-
-            // 更新庫存
-            $inventory->quantity = $newQty;
-            // 更新總值
-            $inventory->total_value = $inventory->quantity * $inventory->unit_cost;
-            $inventory->save();
-
-            // 異動類型映射
-            $type = $validated['type'] ?? ($isAdjustment ? 'manual_adjustment' : 'adjustment');
-            $typeMapping = [
-                'manual_adjustment' => '手動調整庫存',
-                'adjustment' => '盤點調整',
-                'purchase_in' => '採購進貨',
-                'sales_out' => '銷售出庫',
-                'return_in' => '退貨入庫',
-                'return_out' => '退貨出庫',
-                'transfer_in' => '撥補入庫',
-                'transfer_out' => '撥補出庫',
-            ];
-            $chineseType = $typeMapping[$type] ?? $type;
-            
-            // 如果是編輯頁面來的，且沒傳 type，設為手動編輯
-            if (!$isAdjustment && !isset($validated['type'])) {
-                $chineseType = '手動編輯';
-            }
-
-            // 整理原因
-            $reason = $validated['reason'] ?? ($isAdjustment ? '手動庫存調整' : '編輯頁面更新');
-            if (isset($validated['notes'])) {
-                $reason .= ' - ' . $validated['notes'];
-            }
-
-            // 寫入異動紀錄
-            if (abs($changeQty) > 0.0001) {
-                $inventory->transactions()->create([
-                    'type' => $chineseType,
-                    'quantity' => $changeQty,
-                    'unit_cost' => $inventory->unit_cost, // 記錄
-                    'balance_before' => $currentQty,
-                    'balance_after' => $newQty,
-                    'reason' => $reason,
-                    'actual_time' => now(), 
-                    'user_id' => auth()->id(),
-                ]);
-            }
+            $this->inventoryService->adjustInventory($inventory, $validated);
 
             return redirect()->route('warehouses.inventory.index', $inventory->warehouse_id)
                 ->with('success', '庫存資料已更新');
@@ -482,7 +394,61 @@ class InventoryController extends Controller
         $productId = $request->query('productId');
 
         if ($productId) {
-            // ... (略) ...
+            $product = Product::findOrFail($productId);
+            // 取得該倉庫中該商品的所有批號 ID
+            $inventoryIds = Inventory::where('warehouse_id', $warehouse->id)
+                ->where('product_id', $productId)
+                ->pluck('id')
+                ->toArray();
+
+            $transactionsRaw = InventoryTransaction::whereIn('inventory_id', $inventoryIds)
+                ->with('inventory') // 需要批號資訊
+                ->orderBy('actual_time', 'desc')
+                ->orderBy('id', 'desc')
+                ->get();
+
+            // 手動 Hydrate 使用者資料
+            $userIds = $transactionsRaw->pluck('user_id')->filter()->unique()->toArray();
+            $users = $this->coreService->getUsersByIds($userIds)->keyBy('id');
+
+            // 計算商品在該倉庫的總量（不分批號）
+            $currentRunningTotal = (float) Inventory::whereIn('id', $inventoryIds)->sum('quantity');
+
+            $transactions = $transactionsRaw->map(function ($tx) use ($users, &$currentRunningTotal) {
+                $user = $tx->user_id ? ($users[$tx->user_id] ?? null) : null;
+                $balanceAfter = $currentRunningTotal;
+                
+                // 為下一筆（較舊的）紀錄更新 Running Total
+                $currentRunningTotal -= (float) $tx->quantity;
+
+                return [
+                    'id' => (string) $tx->id,
+                    'type' => $tx->type,
+                    'quantity' => (float) $tx->quantity,
+                    'unit_cost' => (float) $tx->unit_cost, 
+                    'balanceAfter' => (float) $balanceAfter, // 顯示該商品在倉庫的累計結餘
+                    'reason' => $tx->reason,
+                    'userName' => $user ? $user->name : '系統',
+                    'actualTime' => $tx->actual_time ? substr($tx->actual_time, 0, 16) : $tx->created_at->format('Y-m-d H:i'),
+                    'batchNumber' => $tx->inventory?->batch_number ?? '-', // 補上批號資訊
+                    'slot' => $tx->inventory?->location, // 加入貨道資訊
+                ];
+            });
+
+            // 重新計算目前的總量（用於 Header 顯示，確保一致性）
+            $totalQuantity = Inventory::whereIn('id', $inventoryIds)->sum('quantity');
+
+            return Inertia::render('Warehouse/InventoryHistory', [
+                'warehouse' => $warehouse,
+                'inventory' => [
+                    'id' => null, // 跨批號查詢沒有單一 ID
+                    'productName' => $product->name,
+                    'productCode' => $product->code,
+                    'batchNumber' => '所有批號',
+                    'quantity' => (float) $totalQuantity,
+                ],
+                'transactions' => $transactions
+            ]);
         }
 
         if ($inventoryId) {
@@ -496,7 +462,7 @@ class InventoryController extends Controller
             $userIds = $inventory->transactions->pluck('user_id')->filter()->unique()->toArray();
             $users = $this->coreService->getUsersByIds($userIds)->keyBy('id');
 
-            $transactions = $inventory->transactions->map(function ($tx) use ($users) {
+            $transactions = $inventory->transactions->map(function ($tx) use ($users, $inventory) {
                 $user = $tx->user_id ? ($users[$tx->user_id] ?? null) : null;
                 return [
                     'id' => (string) $tx->id,
@@ -506,7 +472,8 @@ class InventoryController extends Controller
                     'balanceAfter' => (float) $tx->balance_after,
                     'reason' => $tx->reason,
                     'userName' => $user ? $user->name : '系統', // 手動對應
-                    'actualTime' => $tx->actual_time ? $tx->actual_time->format('Y-m-d H:i') : $tx->created_at->format('Y-m-d H:i'),
+                    'actualTime' => $tx->actual_time ? substr($tx->actual_time, 0, 16) : $tx->created_at->format('Y-m-d H:i'),
+                    'slot' => $inventory->location, // 加入貨道資訊
                 ];
             });
 
@@ -527,4 +494,35 @@ class InventoryController extends Controller
 
         return redirect()->back()->with('error', '未提供查詢參數');
     }
+
+    /**
+     * 匯入入庫
+     */
+    public function import(Request $request, Warehouse $warehouse)
+    {
+        $request->validate([
+            'file' => 'required|mimes:xlsx,xls,csv',
+            'inboundDate' => 'required|date',
+            'notes' => 'nullable|string',
+        ]);
+
+        try {
+            Excel::import(
+                new InventoryImport($warehouse, $request->inboundDate, $request->notes),
+                $request->file('file')
+            );
+
+            return back()->with('success', '庫存資料匯入成功');
+        } catch (\Exception $e) {
+            return back()->withErrors(['file' => '匯入過程中發生錯誤: ' . $e->getMessage()]);
+        }
+    }
+
+    /**
+     * 下載匯入範本 (.xlsx)
+     */
+    public function template()
+    {
+        return Excel::download(new InventoryTemplateExport, '庫存匯入範本.xlsx');
+    }
 }

app/Modules/Inventory/Controllers/InventoryReportController.php

@@ -0,0 +1,99 @@
+<?php
+
+namespace App\Modules\Inventory\Controllers;
+
+use App\Http\Controllers\Controller;
+use App\Modules\Inventory\Models\Category;
+use App\Modules\Inventory\Models\Warehouse;
+use App\Modules\Inventory\Services\InventoryReportService;
+use App\Modules\Inventory\Exports\InventoryReportExport;
+use Illuminate\Http\Request;
+use Inertia\Inertia;
+use Maatwebsite\Excel\Facades\Excel;
+
+
+class InventoryReportController extends Controller
+{
+    protected $reportService;
+
+    public function __construct(InventoryReportService $reportService)
+    {
+        $this->reportService = $reportService;
+    }
+
+    public function index(Request $request)
+    {
+        $filters = $request->only([
+            'date_from', 'date_to', 'warehouse_id', 'category_id', 'search', 'per_page',
+            'sort_by', 'sort_order'
+        ]);
+
+        if (!isset($filters['date_from'])) {
+            $filters['date_from'] = date('Y-m-d');
+        }
+        if (!isset($filters['date_to'])) {
+            $filters['date_to'] = date('Y-m-d');
+        }
+
+        $defaultPerPage = \App\Modules\Core\Models\SystemSetting::getVal('display.per_page', 10);
+        $perPage = (int) $request->input('per_page', $defaultPerPage);
+        if (!in_array($perPage, [10, 20, 50, 100])) {
+            $perPage = $defaultPerPage;
+        }
+        $reportData = $this->reportService->getReportData($filters, $perPage);
+        $summary = $this->reportService->getSummary($filters);
+
+        return Inertia::render('Inventory/Report/Index', [
+            'reportData' => $reportData,
+            'summary' => $summary,
+            'warehouses' => Warehouse::select('id', 'name')->get(),
+            'categories' => Category::select('id', 'name')->get(),
+            'filters' => $filters,
+        ]);
+    }
+
+    public function export(Request $request)
+    {
+        $filters = $request->only([
+            'period', 'date_from', 'date_to', 'warehouse_id', 'category_id', 'search'
+        ]);
+
+        return Excel::download(new InventoryReportExport($this->reportService, $filters), 'inventory_report_' . date('YmdHis') . '.xlsx');
+    }
+
+    public function show(Request $request, $productId)
+    {
+        // 明細頁面自身使用的篩選條件
+        $filters = $request->only([
+            'date_from', 'date_to', 'warehouse_id'
+        ]);
+
+        // 報表頁面的完整篩選狀態（用於返回時恢復）
+        $reportFilters = $request->only([
+            'date_from', 'date_to', 'warehouse_id',
+            'category_id', 'search', 'per_page'
+        ]);
+        // 將傳入的 report_page 轉回 page 以便 Link 元件正確生成回報表頁的連結
+        if ($request->has('report_page')) {
+            $reportFilters['page'] = $request->input('report_page');
+        }
+
+        // 取得商品資訊 (用於顯示標題，含基本單位)
+        $product = \App\Modules\Inventory\Models\Product::with('baseUnit')->findOrFail($productId);
+        
+        $transactions = $this->reportService->getProductDetails($productId, $filters, 20);
+
+        return Inertia::render('Inventory/Report/Show', [
+            'product' => [
+                'id' => $product->id,
+                'code' => $product->code,
+                'name' => $product->name,
+                'unit_name' => $product->baseUnit?->name ?? '-',
+            ],
+            'transactions' => $transactions,
+            'filters' => $filters,
+            'reportFilters' => $reportFilters,
+            'warehouses' => Warehouse::select('id', 'name')->get(),
+        ]);
+    }
+}

app/Modules/Inventory/Controllers/ProductController.php

@@ -10,9 +10,18 @@ use App\Modules\Inventory\Models\Category;
 use Illuminate\Http\Request;
 use Inertia\Inertia;
 use Inertia\Response;
+use Maatwebsite\Excel\Facades\Excel;
+use App\Modules\Inventory\Exports\ProductTemplateExport;
+use App\Modules\Inventory\Imports\ProductImport;
 
 class ProductController extends Controller
 {
+    protected $productService;
+
+    public function __construct(\App\Modules\Inventory\Contracts\ProductServiceInterface $productService)
+    {
+        $this->productService = $productService;
+    }
     /**
      * 顯示資源列表。
      */
@@ -25,6 +34,7 @@ class ProductController extends Controller
             $query->where(function ($q) use ($search) {
                 $q->where('name', 'like', "%{$search}%")
                   ->orWhere('code', 'like', "%{$search}%")
+                  ->orWhere('barcode', 'like', "%{$search}%")
                   ->orWhere('brand', 'like', "%{$search}%");
             });
         }
@@ -33,9 +43,11 @@ class ProductController extends Controller
             $query->where('category_id', $request->category_id);
         }
 
-        $perPage = $request->input('per_page', 10);
-        if (!in_array($perPage, [10, 20, 50, 100])) {
-            $perPage = 10;
+        $defaultPerPage = \App\Modules\Core\Models\SystemSetting::getVal('display.per_page', 10);
+        $perPage = $request->input('per_page', $defaultPerPage);
+        
+        if (!in_array((int)$perPage, [10, 20, 50, 100])) {
+            $perPage = $defaultPerPage;
         }
 
         $sortField = $request->input('sort_field', 'id');
@@ -66,6 +78,7 @@ class ProductController extends Controller
             return (object) [
                 'id' => (string) $product->id,
                 'code' => $product->code,
+                'barcode' => $product->barcode,
                 'name' => $product->name,
                 'categoryId' => $product->category_id,
                 'category' => $product->category ? (object) [
@@ -90,52 +103,137 @@ class ProductController extends Controller
                     'name' => $product->purchaseUnit->name,
                 ] : null,
                 'conversionRate' => (float) $product->conversion_rate,
+                'location' => $product->location,
+                'cost_price' => (float) $product->cost_price,
+                'price' => (float) $product->price,
+                'member_price' => (float) $product->member_price,
+                'wholesale_price' => (float) $product->wholesale_price,
+                'is_active' => (bool) $product->is_active,
             ];
         });
 
-        $categories = Category::where('is_active', true)->get();
+        $categories = Category::select('id', 'name')->where('is_active', true)->get();
 
         return Inertia::render('Product/Index', [
             'products' => $products,
-            'categories' => Category::where('is_active', true)->get()->map(fn($c) => (object)['id' => $c->id, 'name' => $c->name]),
-            'units' => Unit::all()->map(fn($u) => (object)['id' => (string) $u->id, 'name' => $u->name, 'code' => $u->code]),
+            'categories' => $categories->map(fn($c) => (object)['id' => $c->id, 'name' => $c->name]),
+            'units' => Unit::select('id', 'name', 'code')->get()->map(fn($u) => (object)['id' => (string) $u->id, 'name' => $u->name, 'code' => $u->code]),
             'filters' => $request->only(['search', 'category_id', 'per_page', 'sort_field', 'sort_direction']),
         ]);
     }
 
+    /**
+     * 顯示指定的資源。
+     */
+    public function show(Product $product): Response
+    {
+        return Inertia::render('Product/Show', [
+            'product' => (object) [
+                'id' => (string) $product->id,
+                'code' => $product->code,
+                'barcode' => $product->barcode,
+                'name' => $product->name,
+                'categoryId' => $product->category_id,
+                'category' => $product->category ? (object) [
+                    'id' => $product->category->id,
+                    'name' => $product->category->name,
+                ] : null,
+                'brand' => $product->brand,
+                'specification' => $product->specification,
+                'baseUnitId' => $product->base_unit_id,
+                'baseUnit' => $product->baseUnit ? (object) [
+                    'id' => $product->baseUnit->id,
+                    'name' => $product->baseUnit->name,
+                ] : null,
+                'largeUnitId' => $product->large_unit_id,
+                'largeUnit' => $product->largeUnit ? (object) [
+                    'id' => $product->largeUnit->id,
+                    'name' => $product->largeUnit->name,
+                ] : null,
+                'purchaseUnitId' => $product->purchase_unit_id,
+                'purchaseUnit' => $product->purchaseUnit ? (object) [
+                    'id' => $product->purchaseUnit->id,
+                    'name' => $product->purchaseUnit->name,
+                ] : null,
+                'conversionRate' => (float) $product->conversion_rate,
+                'location' => $product->location,
+                'cost_price' => (float) $product->cost_price,
+                'price' => (float) $product->price,
+                'member_price' => (float) $product->member_price,
+                'wholesale_price' => (float) $product->wholesale_price,
+                'is_active' => (bool) $product->is_active,
+            ]
+        ]);
+    }
+
+    /**
+     * 顯示建立表單。
+     */
+    public function create(): Response
+    {
+        return Inertia::render('Product/Create', [
+            'categories' => Category::select('id', 'name')->where('is_active', true)->get()->map(fn($c) => (object)['id' => $c->id, 'name' => $c->name]),
+            'units' => Unit::select('id', 'name', 'code')->get()->map(fn($u) => (object)['id' => (string) $u->id, 'name' => $u->name, 'code' => $u->code]),
+        ]);
+    }
+
     /**
      * 將新建立的資源儲存到儲存體中。
      */
     public function store(Request $request)
     {
         $validated = $request->validate([
-            'code' => 'required|string|max:2|unique:products,code',
+            'code' => 'nullable|unique:products,code',
+            'barcode' => 'nullable|unique:products,barcode',
             'name' => 'required|string|max:255',
             'category_id' => 'required|exists:categories,id',
             'brand' => 'nullable|string|max:255',
             'specification' => 'nullable|string',
-
             'base_unit_id' => 'required|exists:units,id',
             'large_unit_id' => 'nullable|exists:units,id',
-            'conversion_rate' => 'required_with:large_unit_id|nullable|numeric|min:0.0001',
             'purchase_unit_id' => 'nullable|exists:units,id',
-        ], [
-            'code.required' => '商品代號為必填',
-            'code.max' => '商品代號最多 2 碼',
-            'code.unique' => '商品代號已存在',
-            'name.required' => '商品名稱為必填',
-            'category_id.required' => '請選擇分類',
-            'category_id.exists' => '所選分類不存在',
-            'base_unit_id.required' => '基本庫存單位為必填',
-            'base_unit_id.exists' => '所選基本單位不存在',
-            'conversion_rate.required_with' => '填寫大單位時，換算率為必填',
-            'conversion_rate.numeric' => '換算率必須為數字',
-            'conversion_rate.min' => '換算率最小為 0.0001',
+            'conversion_rate' => 'nullable|numeric|min:0',
+            'location' => 'nullable|string|max:255',
+            'cost_price' => 'nullable|numeric|min:0',
+            'price' => 'nullable|numeric|min:0',
+            'member_price' => 'nullable|numeric|min:0',
+            'wholesale_price' => 'nullable|numeric|min:0',
+            'is_active' => 'boolean',
         ]);
 
-        $product = Product::create($validated);
+        $product = $this->productService->createProduct($validated);
 
-        return redirect()->back()->with('success', '商品已建立');
+        return redirect()->route('products.index')->with('success', '商品已建立');
+    }
+
+    /**
+     * 顯示編輯表單。
+     */
+    public function edit(Product $product): Response
+    {
+        return Inertia::render('Product/Edit', [
+            'product' => (object) [
+                'id' => (string) $product->id,
+                'code' => $product->code,
+                'barcode' => $product->barcode,
+                'name' => $product->name,
+                'categoryId' => $product->category_id,
+                'brand' => $product->brand,
+                'specification' => $product->specification,
+                'baseUnitId' => $product->base_unit_id,
+                'largeUnitId' => $product->large_unit_id,
+                'conversionRate' => (float) $product->conversion_rate,
+                'purchaseUnitId' => $product->purchase_unit_id,
+                'location' => $product->location,
+                'cost_price' => (float) $product->cost_price,
+                'price' => (float) $product->price,
+                'member_price' => (float) $product->member_price,
+                'wholesale_price' => (float) $product->wholesale_price,
+                'is_active' => (bool) $product->is_active,
+            ],
+            'categories' => Category::select('id', 'name')->where('is_active', true)->get()->map(fn($c) => (object)['id' => $c->id, 'name' => $c->name]),
+            'units' => Unit::select('id', 'name', 'code')->get()->map(fn($u) => (object)['id' => (string) $u->id, 'name' => $u->name, 'code' => $u->code]),
+        ]);
     }
 
     /**
@@ -144,32 +242,31 @@ class ProductController extends Controller
     public function update(Request $request, Product $product)
     {
         $validated = $request->validate([
-            'code' => 'required|string|max:2|unique:products,code,' . $product->id,
+            'code' => 'nullable|unique:products,code,' . $product->id,
+            'barcode' => 'nullable|unique:products,barcode,' . $product->id,
             'name' => 'required|string|max:255',
             'category_id' => 'required|exists:categories,id',
             'brand' => 'nullable|string|max:255',
             'specification' => 'nullable|string',
             'base_unit_id' => 'required|exists:units,id',
             'large_unit_id' => 'nullable|exists:units,id',
-            'conversion_rate' => 'required_with:large_unit_id|nullable|numeric|min:0.0001',
             'purchase_unit_id' => 'nullable|exists:units,id',
-        ], [
-            'code.required' => '商品代號為必填',
-            'code.max' => '商品代號最多 2 碼',
-            'code.unique' => '商品代號已存在',
-            'name.required' => '商品名稱為必填',
-            'category_id.required' => '請選擇分類',
-            'category_id.exists' => '所選分類不存在',
-            'base_unit_id.required' => '基本庫存單位為必填',
-            'base_unit_id.exists' => '所選基本單位不存在',
-            'conversion_rate.required_with' => '填寫大單位時，換算率為必填',
-            'conversion_rate.numeric' => '換算率必須為數字',
-            'conversion_rate.min' => '換算率最小為 0.0001',
+            'conversion_rate' => 'nullable|numeric|min:0',
+            'location' => 'nullable|string|max:255',
+            'cost_price' => 'nullable|numeric|min:0',
+            'price' => 'nullable|numeric|min:0',
+            'member_price' => 'nullable|numeric|min:0',
+            'wholesale_price' => 'nullable|numeric|min:0',
+            'is_active' => 'boolean',
         ]);
 
-        $product->update($validated);
+        $this->productService->updateProduct($product, $validated);
 
-        return redirect()->back()->with('success', '商品已更新');
+        if ($request->input('from') === 'show') {
+            return redirect()->route('products.show', $product->id)->with('success', '商品已更新');
+        }
+
+        return redirect()->route('products.index')->with('success', '商品已更新');
     }
 
     /**
@@ -181,4 +278,36 @@ class ProductController extends Controller
 
         return redirect()->back()->with('success', '商品已刪除');
     }
+
+    /**
+     * 下載匯入範本
+     */
+    public function template()
+    {
+        return Excel::download(new ProductTemplateExport, '商品匯入範本.xlsx');
+    }
+
+    /**
+     * 匯入商品
+     */
+    public function import(Request $request)
+    {
+        $request->validate([
+            'file' => 'required|file|mimes:xlsx,xls',
+        ]);
+
+        try {
+            Excel::import(new ProductImport, $request->file('file'));
+            return redirect()->back()->with('success', '商品匯入成功');
+        } catch (\Maatwebsite\Excel\Validators\ValidationException $e) {
+            $failures = $e->failures();
+            $messages = [];
+            foreach ($failures as $failure) {
+                $messages[] = '第 ' . $failure->row() . ' 行: ' . implode(', ', $failure->errors());
+            }
+            return redirect()->back()->withErrors(['file' => implode("\n", $messages)]);
+        } catch (\Exception $e) {
+            return redirect()->back()->withErrors(['file' => '匯入失敗: ' . $e->getMessage()]);
+        }
+    }
 }

app/Modules/Inventory/Controllers/SafetyStockController.php

@@ -19,7 +19,7 @@ class SafetyStockController extends Controller
      */
     public function index(Warehouse $warehouse)
     {
-        $allProducts = Product::with(['category', 'baseUnit'])->get();
+        $allProducts = Product::select('id', 'name', 'category_id', 'base_unit_id')->with(['category:id,name', 'baseUnit:id,name'])->get();
 
         // 準備可選商品列表
         $availableProducts = $allProducts->map(function ($product) {
@@ -31,7 +31,51 @@ class SafetyStockController extends Controller
             ];
         });
 
-        // 準備現有庫存列表 (用於庫存量對比)
+        // 獲取現有庫存 (用於抓取「已在倉庫中」的商品)
+        $inventoryProductIds = Inventory::where('warehouse_id', $warehouse->id)->pluck('product_id')->unique();
+
+        // 準備安全庫存設定列表 (從資料庫讀取)
+        $existingSettings = WarehouseProductSafetyStock::where('warehouse_id', $warehouse->id)
+            ->with(['product.category', 'product.baseUnit'])
+            ->get();
+
+        $existingProductIds = $existingSettings->pluck('product_id')->toArray();
+
+        // 找出：有庫存但是「還沒設定過安全庫存」的商品
+        $missingProductIds = $inventoryProductIds->diff($existingProductIds);
+        
+        $missingProducts = Product::whereIn('id', $missingProductIds)
+            ->with(['category', 'baseUnit'])
+            ->get();
+
+        // 合併：已設定的 + 有庫存未設定的 (預設值 0)
+        $safetyStockSettings = $existingSettings->map(function ($setting) {
+            return [
+                'id' => (string) $setting->id,
+                'warehouseId' => (string) $setting->warehouse_id,
+                'productId' => (string) $setting->product_id,
+                'productName' => $setting->product->name,
+                'productType' => $setting->product->category ? $setting->product->category->name : '其他',
+                'safetyStock' => (float) $setting->safety_stock,
+                'unit' => $setting->product->baseUnit?->name ?? '個',
+                'updatedAt' => $setting->updated_at->toIso8601String(),
+                'isNew' => false, // 標記為舊有設定
+            ];
+        })->concat($missingProducts->map(function ($product) use ($warehouse) {
+            return [
+                'id' => 'temp_' . $product->id, // 暫時 ID
+                'warehouseId' => (string) $warehouse->id,
+                'productId' => (string) $product->id,
+                'productName' => $product->name,
+                'productType' => $product->category ? $product->category->name : '其他',
+                'safetyStock' => 0, // 預設 0
+                'unit' => $product->baseUnit?->name ?? '個',
+                'updatedAt' => now()->toIso8601String(),
+                'isNew' => true, // 標記為建議新增
+            ];
+        }))->values();
+
+        // 原本的 inventories 映射 (供顯示對比)
         $inventories = Inventory::where('warehouse_id', $warehouse->id)
             ->select('product_id', DB::raw('SUM(quantity) as total_quantity'))
             ->groupBy('product_id')
@@ -43,23 +87,6 @@ class SafetyStockController extends Controller
                 ];
             });
 
-        // 準備安全庫存設定列表 (從新表格讀取)
-        $safetyStockSettings = WarehouseProductSafetyStock::where('warehouse_id', $warehouse->id)
-            ->with(['product.category', 'product.baseUnit'])
-            ->get()
-            ->map(function ($setting) {
-                return [
-                    'id' => (string) $setting->id,
-                    'warehouseId' => (string) $setting->warehouse_id,
-                    'productId' => (string) $setting->product_id,
-                    'productName' => $setting->product->name,
-                    'productType' => $setting->product->category ? $setting->product->category->name : '其他',
-                    'safetyStock' => (float) $setting->safety_stock,
-                    'unit' => $setting->product->baseUnit?->name ?? '個',
-                    'updatedAt' => $setting->updated_at->toIso8601String(),
-                ];
-            });
-
         return Inertia::render('Warehouse/SafetyStockSettings', [
             'warehouse' => $warehouse,
             'safetyStockSettings' => $safetyStockSettings,

app/Modules/Inventory/Controllers/StockQueryController.php

@@ -0,0 +1,64 @@
+<?php
+
+namespace App\Modules\Inventory\Controllers;
+
+use App\Http\Controllers\Controller;
+use App\Modules\Inventory\Contracts\InventoryServiceInterface;
+use App\Modules\Inventory\Models\Category;
+use App\Modules\Inventory\Models\Warehouse;
+use Illuminate\Http\Request;
+use Inertia\Inertia;
+
+class StockQueryController extends Controller
+{
+    protected InventoryServiceInterface $inventoryService;
+
+    public function __construct(InventoryServiceInterface $inventoryService)
+    {
+        $this->inventoryService = $inventoryService;
+    }
+
+    /**
+     * 即時庫存查詢頁面
+     */
+    public function index(Request $request)
+    {
+        $filters = $request->only(['warehouse_id', 'category_id', 'search', 'status', 'sort_by', 'sort_order', 'per_page']);
+        $defaultPerPage = \App\Modules\Core\Models\SystemSetting::getVal('display.per_page', 10);
+        $perPage = (int) ($filters['per_page'] ?? $defaultPerPage);
+        
+        if (!in_array($perPage, [10, 20, 50, 100])) {
+            $perPage = $defaultPerPage;
+        }
+
+        $result = $this->inventoryService->getStockQueryData($filters, $perPage);
+
+        return Inertia::render('Inventory/StockQuery/Index', [
+            'filters' => $filters,
+            'summary' => $result['summary'],
+            'inventories' => [
+                'data' => $result['data'],
+                'total' => $result['pagination']['total'],
+                'per_page' => $result['pagination']['per_page'],
+                'current_page' => $result['pagination']['current_page'],
+                'last_page' => $result['pagination']['last_page'],
+                'links' => $result['pagination']['links'],
+            ],
+            'warehouses' => Warehouse::select('id', 'name')->orderBy('name')->get(),
+            'categories' => Category::select('id', 'name')->orderBy('name')->get(),
+        ]);
+    }
+
+    /**
+     * Excel 匯出
+     */
+    public function export(Request $request)
+    {
+        $filters = $request->only(['warehouse_id', 'category_id', 'search', 'status']);
+
+        return \Maatwebsite\Excel\Facades\Excel::download(
+            new \App\Modules\Inventory\Exports\StockQueryExport($filters),
+            '即時庫存查詢_' . now()->format('Ymd_His') . '.xlsx'
+        );
+    }
+}

app/Modules/Inventory/Controllers/StoreRequisitionController.php

@@ -0,0 +1,448 @@
+<?php
+
+namespace App\Modules\Inventory\Controllers;
+
+use App\Http\Controllers\Controller;
+use App\Modules\Inventory\Models\StoreRequisition;
+use App\Modules\Inventory\Models\Warehouse;
+use App\Modules\Inventory\Models\Product;
+use App\Modules\Inventory\Models\Inventory;
+use App\Modules\Inventory\Services\StoreRequisitionService;
+use App\Modules\Core\Contracts\CoreServiceInterface;
+use Illuminate\Http\Request;
+use Inertia\Inertia;
+
+class StoreRequisitionController extends Controller
+{
+    protected StoreRequisitionService $service;
+    protected CoreServiceInterface $coreService;
+
+    public function __construct(
+        StoreRequisitionService $service,
+        CoreServiceInterface $coreService
+    ) {
+        $this->service = $service;
+        $this->coreService = $coreService;
+    }
+
+    /**
+     * 叫貨單列表
+     */
+    public function index(Request $request)
+    {
+        $query = StoreRequisition::query();
+
+        // 搜尋（單號）
+        if ($request->search) {
+            $query->where('doc_no', 'like', "%{$request->search}%");
+        }
+
+        // 狀態篩選
+        if ($request->status && $request->status !== 'all') {
+            $query->where('status', $request->status);
+        }
+
+        // 倉庫篩選
+        if ($request->warehouse_id) {
+            $query->where('store_warehouse_id', $request->warehouse_id);
+        }
+
+        // 日期範圍
+        if ($request->date_start) {
+            $query->whereDate('created_at', '>=', $request->date_start);
+        }
+        if ($request->date_end) {
+            $query->whereDate('created_at', '<=', $request->date_end);
+        }
+
+        // 排序
+        $sortField = $request->input('sort_by', 'id');
+        $sortOrder = $request->input('sort_order', 'desc');
+        $allowedSorts = ['id', 'doc_no', 'status', 'created_at', 'submitted_at'];
+        if (in_array($sortField, $allowedSorts)) {
+            $query->orderBy($sortField, $sortOrder);
+        } else {
+            $query->orderBy('id', 'desc');
+        }
+
+        $defaultPerPage = \App\Modules\Core\Models\SystemSetting::getVal('display.per_page', 10);
+        $perPage = $request->input('per_page', $defaultPerPage);
+        if (!in_array((int)$perPage, [10, 20, 50, 100])) {
+            $perPage = $defaultPerPage;
+        }
+        $requisitions = $query->paginate($perPage)->withQueryString();
+
+        // 水和倉庫名稱與使用者名稱
+        $warehouses = Warehouse::select('id', 'name', 'type')->get();
+        $warehouseMap = $warehouses->keyBy('id');
+
+        $userIds = $requisitions->getCollection()
+            ->pluck('created_by')
+            ->merge($requisitions->getCollection()->pluck('approved_by'))
+            ->filter()
+            ->unique()
+            ->toArray();
+        $users = $this->coreService->getUsersByIds($userIds)->keyBy('id');
+
+        $requisitions->getCollection()->transform(function ($req) use ($warehouseMap, $users) {
+            $req->store_warehouse_name = $warehouseMap->get($req->store_warehouse_id)?->name ?? '-';
+            $req->supply_warehouse_name = $warehouseMap->get($req->supply_warehouse_id)?->name ?? '-';
+            $req->creator_name = $users->get($req->created_by)?->name ?? '-';
+            $req->approver_name = $users->get($req->approved_by)?->name ?? '-';
+            return $req;
+        });
+
+        return Inertia::render('StoreRequisition/Index', [
+            'requisitions' => $requisitions,
+            'filters' => $request->only(['search', 'status', 'warehouse_id', 'date_start', 'date_end', 'sort_by', 'sort_order', 'per_page']),
+            'warehouses' => $warehouses->map(fn($w) => ['id' => $w->id, 'name' => $w->name]),
+        ]);
+    }
+
+    /**
+     * 新增頁面
+     */
+    public function create()
+    {
+        $warehouses = Warehouse::select('id', 'name', 'type')->get();
+        $products = Product::select('id', 'name', 'code', 'base_unit_id')
+            ->with('baseUnit:id,name')
+            ->where('is_active', true)
+            ->get();
+
+        return Inertia::render('StoreRequisition/Create', [
+            'warehouses' => $warehouses->map(fn($w) => [
+                'id' => $w->id,
+                'name' => $w->name,
+                'type' => $w->type?->value,
+            ]),
+            'products' => $products->map(fn($p) => [
+                'id' => $p->id,
+                'name' => $p->name,
+                'code' => $p->code,
+                'unit_name' => $p->baseUnit?->name,
+            ]),
+        ]);
+    }
+
+    /**
+     * 儲存叫貨單
+     */
+    public function store(Request $request)
+    {
+        $request->validate([
+            'store_warehouse_id' => 'required|exists:warehouses,id',
+            'remark' => 'nullable|string|max:500',
+            'items' => 'required|array|min:1',
+            'items.*.product_id' => 'required|exists:products,id',
+            'items.*.requested_qty' => 'required|numeric|min:0.01',
+            'items.*.remark' => 'nullable|string|max:200',
+        ], [
+            'items.required' => '至少需要一項商品',
+            'items.min' => '至少需要一項商品',
+            'items.*.requested_qty.min' => '需求數量必須大於 0',
+        ]);
+
+        $submitImmediately = $request->boolean('submit_immediately');
+
+        $requisition = $this->service->create(
+            $request->only(['store_warehouse_id', 'remark']),
+            $request->items,
+            auth()->id(),
+            $submitImmediately
+        );
+
+        if ($submitImmediately) {
+            return redirect()->route('store-requisitions.index')
+                ->with('success', '叫貨單已提交審核');
+        }
+
+        return redirect()->route('store-requisitions.show', $requisition->id)
+            ->with('success', '叫貨單已儲存為草稿');
+    }
+
+    /**
+     * 叫貨單詳情
+     */
+    public function show($id)
+    {
+        $requisition = StoreRequisition::with([
+            'items.product.baseUnit',
+            'transferOrder.items' // 載入產生的調撥單明細與批號
+        ])->findOrFail($id);
+
+        // 水和倉庫
+        $warehouses = Warehouse::select('id', 'name', 'type')->get();
+        $warehouseMap = $warehouses->keyBy('id');
+
+        $requisition->store_warehouse_name = $warehouseMap->get($requisition->store_warehouse_id)?->name ?? '-';
+        $requisition->supply_warehouse_name = $warehouseMap->get($requisition->supply_warehouse_id)?->name ?? '-';
+
+        // 水和使用者
+        $userIds = collect([$requisition->created_by, $requisition->approved_by])->filter()->unique()->toArray();
+        $users = $this->coreService->getUsersByIds($userIds)->keyBy('id');
+        $requisition->creator_name = $users->get($requisition->created_by)?->name ?? '-';
+        $requisition->approver_name = $users->get($requisition->approved_by)?->name ?? '-';
+
+        // 水和明細商品資訊
+        $requisition->items->transform(function ($item) {
+            $item->product_name = $item->product?->name ?? '-';
+            $item->product_code = $item->product?->code ?? '-';
+            $item->unit_name = $item->product?->baseUnit?->name ?? '-';
+            return $item;
+        });
+
+        // 取得庫存資訊（顯示該商品在申請倉庫的現有庫存量）
+        $productIds = $requisition->items->pluck('product_id')->toArray();
+        $inventories = Inventory::where('warehouse_id', $requisition->store_warehouse_id)
+            ->whereIn('product_id', $productIds)
+            ->select('product_id')
+            ->selectRaw('SUM(quantity) as total_qty')
+            ->groupBy('product_id')
+            ->get()
+            ->keyBy('product_id');
+
+        // 取得供貨倉庫的可用庫存
+        $supplyInventories = collect();
+        $supplyBatchesMap = collect();
+        if ($requisition->supply_warehouse_id) {
+            $supplyInventories = Inventory::where('warehouse_id', $requisition->supply_warehouse_id)
+                ->whereIn('product_id', $productIds)
+                ->select('product_id')
+                ->selectRaw('SUM(quantity) as total_qty')
+                ->selectRaw('SUM(reserved_quantity) as total_reserved')
+                ->groupBy('product_id')
+                ->get()
+                ->keyBy('product_id');
+
+            // 取得各商品的批號庫存
+            $batches = Inventory::where('warehouse_id', $requisition->supply_warehouse_id)
+                ->whereIn('product_id', $productIds)
+                ->whereRaw('(quantity - reserved_quantity) > 0') // 僅撈出還有可用庫存的批號
+                ->select('id', 'product_id', 'batch_number', 'expiry_date', 'location as position')
+                ->selectRaw('quantity - reserved_quantity as available_qty')
+                ->get();
+            
+            $supplyBatchesMap = $batches->groupBy('product_id');
+        }
+
+        // 把調撥單明細 (核准的批號與數量) 整理成 map, key 為 product_id
+        $approvedBatchesMap = collect();
+        if ($requisition->transferOrder) {
+            $approvedBatchesMap = $requisition->transferOrder->items->groupBy('product_id');
+        }
+
+        $requisition->items->transform(function ($item) use ($inventories, $supplyInventories, $supplyBatchesMap, $approvedBatchesMap) {
+            $item->current_stock = $inventories->get($item->product_id)?->total_qty ?? 0;
+            
+            if ($supplyInventories->has($item->product_id)) {
+                $stock = $supplyInventories->get($item->product_id);
+                $item->supply_stock = max(0, $stock->total_qty - $stock->total_reserved);
+                
+                // 附加該商品的批號可用庫存
+                $batches = $supplyBatchesMap->get($item->product_id) ?? collect();
+                $item->supply_batches = $batches->map(function ($batch) {
+                    return [
+                        'inventory_id' => $batch->id,
+                        'batch_number' => $batch->batch_number,
+                        'position' => $batch->position,
+                        'available_qty' => $batch->available_qty,
+                        'expiry_date' => $batch->expiry_date ? $batch->expiry_date->format('Y-m-d') : null,
+                    ];
+                })->values()->toArray();
+            } else {
+                $item->supply_stock = null;
+                $item->supply_batches = [];
+            }
+            
+            // 附加已核准的批號資訊
+            $approvedBatches = $approvedBatchesMap->get($item->product_id) ?? collect();
+            $item->approved_batches = $approvedBatches->map(function ($transferItem) {
+                // 如果是沒有批號管控的商品，batch_number 可能為 null
+                return [
+                    'batch_number' => $transferItem->batch_number,
+                    'qty' => $transferItem->quantity,
+                ];
+            })->values()->toArray();
+
+            return $item;
+        });
+
+        // 操作紀錄
+        $activities = \Spatie\Activitylog\Models\Activity::where('subject_type', StoreRequisition::class)
+            ->where('subject_id', $requisition->id)
+            ->orderBy('created_at', 'desc')
+            ->get();
+
+        return Inertia::render('StoreRequisition/Show', [
+            'requisition' => $requisition,
+            'warehouses' => $warehouses->map(fn($w) => ['id' => $w->id, 'name' => $w->name]),
+            'activities' => $activities,
+        ]);
+    }
+
+    /**
+     * 編輯頁面
+     */
+    public function edit($id)
+    {
+        $requisition = StoreRequisition::with(['items.product.baseUnit'])->findOrFail($id);
+
+        if (!in_array($requisition->status, ['draft', 'rejected'])) {
+            return redirect()->route('store-requisitions.show', $id)
+                ->with('error', '僅能編輯草稿或被駁回的叫貨單');
+        }
+
+        $warehouses = Warehouse::select('id', 'name', 'type')->get();
+        $products = Product::select('id', 'name', 'code', 'base_unit_id')
+            ->with('baseUnit:id,name')
+            ->where('is_active', true)
+            ->get();
+
+        return Inertia::render('StoreRequisition/Create', [
+            'requisition' => $requisition,
+            'warehouses' => $warehouses->map(fn($w) => [
+                'id' => $w->id,
+                'name' => $w->name,
+                'type' => $w->type?->value,
+            ]),
+            'products' => $products->map(fn($p) => [
+                'id' => $p->id,
+                'name' => $p->name,
+                'code' => $p->code,
+                'unit_name' => $p->baseUnit?->name,
+            ]),
+        ]);
+    }
+
+    /**
+     * 更新叫貨單
+     */
+    public function update(Request $request, $id)
+    {
+        $requisition = StoreRequisition::findOrFail($id);
+
+        $request->validate([
+            'store_warehouse_id' => 'required|exists:warehouses,id',
+            'remark' => 'nullable|string|max:500',
+            'items' => 'required|array|min:1',
+            'items.*.product_id' => 'required|exists:products,id',
+            'items.*.requested_qty' => 'required|numeric|min:0.01',
+            'items.*.remark' => 'nullable|string|max:200',
+        ]);
+
+        $requisition = $this->service->update(
+            $requisition,
+            $request->only(['store_warehouse_id', 'remark']),
+            $request->items
+        );
+
+        // 如果需要直接提交
+        if ($request->boolean('submit_immediately')) {
+            $this->service->submit($requisition, auth()->id());
+            return redirect()->route('store-requisitions.index')
+                ->with('success', '叫貨單已重新提交審核');
+        }
+
+        return redirect()->route('store-requisitions.show', $requisition->id)
+            ->with('success', '叫貨單已更新');
+    }
+
+    /**
+     * 提交審核
+     */
+    public function submit($id)
+    {
+        $requisition = StoreRequisition::findOrFail($id);
+        $this->service->submit($requisition, auth()->id());
+
+        return redirect()->route('store-requisitions.show', $id)
+            ->with('success', '叫貨單已提交審核');
+    }
+
+    /**
+     * 核准叫貨單
+     */
+    public function approve(Request $request, $id)
+    {
+        $requisition = StoreRequisition::findOrFail($id);
+
+        $request->validate([
+            'items' => 'required|array',
+            'items.*.id' => 'required|exists:store_requisition_items,id',
+            'items.*.approved_qty' => 'required|numeric|min:0',
+            'items.*.batches' => 'nullable|array',
+            'items.*.batches.*.inventory_id' => 'nullable|integer',
+            'items.*.batches.*.batch_number' => 'nullable|string',
+            'items.*.batches.*.qty' => 'required_with:items.*.batches|numeric|min:0.01',
+        ]);
+
+        if (empty($requisition->supply_warehouse_id)) {
+            return back()->withErrors(['supply_warehouse_id' => '請先選擇供貨倉庫']);
+        }
+
+        $this->service->approve($requisition, $request->only(['items']), auth()->id());
+
+        return redirect()->route('store-requisitions.show', $id)
+            ->with('success', '叫貨單已核准，調撥單已自動產生');
+    }
+
+    /**
+     * 駁回叫貨單
+     */
+    public function reject(Request $request, $id)
+    {
+        $requisition = StoreRequisition::findOrFail($id);
+
+        $request->validate([
+            'reject_reason' => 'required|string|max:500',
+        ], [
+            'reject_reason.required' => '請填寫駁回原因',
+        ]);
+
+        $this->service->reject($requisition, $request->reject_reason, auth()->id());
+
+        return redirect()->route('store-requisitions.show', $id)
+            ->with('success', '叫貨單已駁回');
+    }
+
+    /**
+     * 更新供貨倉庫
+     */
+    public function updateSupplyWarehouse(Request $request, $id)
+    {
+        $requisition = StoreRequisition::findOrFail($id);
+
+        if ($requisition->status !== 'pending') {
+            return back()->withErrors(['error' => '僅能在待審核狀態修改供貨倉庫']);
+        }
+
+        $request->validate([
+            'supply_warehouse_id' => 'required|exists:warehouses,id',
+        ]);
+
+        $requisition->update([
+            'supply_warehouse_id' => $request->supply_warehouse_id,
+        ]);
+
+        return redirect()->back()->with('success', '供貨倉庫已更新');
+    }
+
+    /**
+     * 刪除叫貨單（僅限草稿）
+     */
+    public function destroy($id)
+    {
+        $requisition = StoreRequisition::findOrFail($id);
+
+        if ($requisition->status !== 'draft') {
+            return back()->withErrors(['error' => '僅能刪除草稿狀態的叫貨單']);
+        }
+
+        $requisition->items()->delete();
+        $requisition->delete();
+
+        return redirect()->route('store-requisitions.index')
+            ->with('success', '叫貨單已刪除');
+    }
+}

app/Modules/Inventory/Controllers/TraceabilityController.php

@@ -0,0 +1,42 @@
+<?php
+
+namespace App\Modules\Inventory\Controllers;
+
+use App\Http\Controllers\Controller;
+use Illuminate\Http\Request;
+use Inertia\Inertia;
+use App\Modules\Inventory\Services\TraceabilityService;
+
+class TraceabilityController extends Controller
+{
+    public function __construct(
+        protected TraceabilityService $traceabilityService
+    ) {}
+
+    /**
+     * 顯示批號溯源查詢的主頁面
+     */
+    public function index(Request $request)
+    {
+        $batchNumber = $request->input('batch_number');
+        $direction = $request->input('direction', 'backward'); // backward 或 forward
+
+        $result = null;
+
+        if ($batchNumber) {
+            if ($direction === 'backward') {
+                $result = $this->traceabilityService->traceBackward($batchNumber);
+            } else {
+                $result = $this->traceabilityService->traceForward($batchNumber);
+            }
+        }
+
+        return Inertia::render('Inventory/Traceability/Index', [
+            'search' => [
+                'batch_number' => $batchNumber,
+                'direction' => $direction,
+            ],
+            'result' => $result
+        ]);
+    }
+}

app/Modules/Inventory/Controllers/TransferOrderController.php

@@ -3,135 +3,323 @@
 namespace App\Modules\Inventory\Controllers;
 
 use App\Http\Controllers\Controller;
-
-use App\Modules\Inventory\Models\Inventory;
+use App\Enums\WarehouseType;
+use App\Modules\Inventory\Models\InventoryTransferOrder;
 use App\Modules\Inventory\Models\Warehouse;
+use App\Modules\Inventory\Models\Inventory;
+use App\Modules\Inventory\Services\TransferService;
 use Illuminate\Http\Request;
-use Illuminate\Support\Facades\DB;
 use Illuminate\Validation\ValidationException;
+use Inertia\Inertia;
 
 class TransferOrderController extends Controller
 {
-    /**
-     * 儲存撥補單（建立調撥單並執行庫存轉移）
-     */
+    protected $transferService;
+
+    public function __construct(TransferService $transferService)
+    {
+        $this->transferService = $transferService;
+    }
+
+    public function index(Request $request)
+    {
+        $query = InventoryTransferOrder::query()
+             ->with(['fromWarehouse', 'toWarehouse', 'createdBy', 'postedBy']);
+
+        // 搜尋：單號或備註
+        if ($request->filled('search')) {
+            $query->where(function ($q) use ($request) {
+                $q->where('doc_no', 'like', "%{$request->search}%")
+                  ->orWhere('remarks', 'like', "%{$request->search}%");
+            });
+        }
+
+        // 篩選：若有選定倉庫，則顯示該倉庫作為來源或目的地的調撥單
+        if ($request->filled('warehouse_id')) {
+             $query->where(function ($q) use ($request) {
+                $q->where('from_warehouse_id', $request->warehouse_id)
+                  ->orWhere('to_warehouse_id', $request->warehouse_id);
+            });
+        }
+
+        $defaultPerPage = \App\Modules\Core\Models\SystemSetting::getVal('display.per_page', 10);
+        $perPage = $request->input('per_page', $defaultPerPage);
+        if (!in_array((int)$perPage, [10, 20, 50, 100])) {
+            $perPage = $defaultPerPage;
+        }
+        $orders = $query->orderByDesc('created_at')
+            ->paginate($perPage)
+            ->withQueryString()
+            ->through(function ($order) {
+                return [
+                    'id' => (string) $order->id,
+                    'doc_no' => $order->doc_no,
+                    'from_warehouse_name' => $order->fromWarehouse->name,
+                    'to_warehouse_name' => $order->toWarehouse->name,
+                    'status' => $order->status,
+                    'created_at' => $order->created_at->format('Y-m-d H:i'),
+                    'posted_at' => $order->posted_at ? $order->posted_at->format('Y-m-d H:i') : '-',
+                    'created_by' => $order->createdBy?->name,
+                ];
+            });
+
+        return Inertia::render('Inventory/Transfer/Index', [
+            'orders' => $orders,
+            'warehouses' => Warehouse::select('id', 'name')->get()->map(fn($w) => ['id' => (string)$w->id, 'name' => $w->name]),
+            'filters' => $request->only(['search', 'warehouse_id', 'per_page']),
+        ]);
+    }
+
     public function store(Request $request)
     {
+        // 兼容前端不同的參數命名 (from/source, to/target)
+        $fromId = $request->input('from_warehouse_id') ?? $request->input('sourceWarehouseId');
+        $toId = $request->input('to_warehouse_id') ?? $request->input('targetWarehouseId');
+        
         $validated = $request->validate([
-            'sourceWarehouseId' => 'required|exists:warehouses,id',
-            'targetWarehouseId' => 'required|exists:warehouses,id|different:sourceWarehouseId',
-            'productId' => 'required|exists:products,id',
-            'quantity' => 'required|numeric|min:0.01',
-            'transferDate' => 'required|date',
-            'status' => 'required|in:待處理,處理中,已完成,已取消', // 目前僅支援立即完成或單純記錄
+            'from_warehouse_id' => 'required_without:sourceWarehouseId|exists:warehouses,id',
+            'to_warehouse_id' => 'required_without:targetWarehouseId|exists:warehouses,id|different:from_warehouse_id',
+            'transit_warehouse_id' => 'nullable|exists:warehouses,id',
+            'remarks' => 'nullable|string',
             'notes' => 'nullable|string',
-            'batchNumber' => 'nullable|string', // 暫時接收，雖然 DB 可能沒存
+            'instant_post' => 'boolean',
+            // 支援單筆商品直接建立 (撥補單模式)
+            'product_id' => 'nullable|exists:products,id',
+            'quantity' => 'nullable|numeric|min:0.01',
+            'batch_number' => 'nullable|string',
         ]);
 
-        return DB::transaction(function () use ($validated) {
-            // 1. 檢查來源倉庫庫存 (精確匹配產品與批號)
-            $sourceInventory = Inventory::where('warehouse_id', $validated['sourceWarehouseId'])
-                ->where('product_id', $validated['productId'])
-                ->where('batch_number', $validated['batchNumber'])
-                ->first();
+        $remarks = $validated['remarks'] ?? $validated['notes'] ?? null;
+        $transitWarehouseId = $validated['transit_warehouse_id'] ?? null;
 
-            if (!$sourceInventory || $sourceInventory->quantity < $validated['quantity']) {
-                throw ValidationException::withMessages([
-                    'quantity' => ['來源倉庫指定批號庫存不足'],
-                ]);
-            }
+        $order = $this->transferService->createOrder(
+            $fromId,
+            $toId,
+            $remarks,
+            auth()->id(),
+            $transitWarehouseId
+        );
 
-            // 2. 獲取或建立目標倉庫庫存 (精確匹配產品與批號，並繼承效期與品質狀態)
-            $targetInventory = Inventory::firstOrCreate(
-                [
-                    'warehouse_id' => $validated['targetWarehouseId'],
-                    'product_id' => $validated['productId'],
-                    'batch_number' => $validated['batchNumber'],
-                ],
-                [
-                    'quantity' => 0,
-                    'unit_cost' => $sourceInventory->unit_cost, // 繼承成本
-                    'total_value' => 0,
-                    'expiry_date' => $sourceInventory->expiry_date,
-                    'quality_status' => $sourceInventory->quality_status,
-                    'origin_country' => $sourceInventory->origin_country,
+        // 手動發送「已建立」日誌，因為服務層使用了 saveQuietly 抑制自動日誌
+        activity()
+            ->performedOn($order)
+            ->causedBy(auth()->id())
+            ->event('created')
+            ->withProperties([
+                'attributes' => [
+                    'doc_no' => $order->doc_no,
+                    'from_warehouse_id' => $order->from_warehouse_id,
+                    'to_warehouse_id' => $order->to_warehouse_id,
+                    'transit_warehouse_id' => $order->transit_warehouse_id,
+                    'remarks' => $order->remarks,
+                    'status' => $order->status,
+                    'created_by' => $order->created_by,
                 ]
-            );
+            ])
+            ->log('created');
         
-            $sourceWarehouse = Warehouse::find($validated['sourceWarehouseId']);
-            $targetWarehouse = Warehouse::find($validated['targetWarehouseId']);
+        if ($request->input('instant_post') === true) {
+            try {
+                $this->transferService->dispatch($order, auth()->id());
                     
-            // 3. 執行庫存轉移 (扣除來源)
-            $oldSourceQty = $sourceInventory->quantity;
-            $newSourceQty = $oldSourceQty - $validated['quantity'];
-            
-            // 設定活動紀錄原因
-            $sourceInventory->activityLogReason = "撥補出庫 至 {$targetWarehouse->name}";
-            $sourceInventory->quantity = $newSourceQty;
-            $sourceInventory->total_value = $sourceInventory->quantity * $sourceInventory->unit_cost; // 更新總值
-            $sourceInventory->save();
-
-            // 記錄來源異動
-            $sourceInventory->transactions()->create([
-                'type' => '撥補出庫',
-                'quantity' => -$validated['quantity'],
-                'unit_cost' => $sourceInventory->unit_cost, // 記錄
-                'balance_before' => $oldSourceQty,
-                'balance_after' => $newSourceQty,
-                'reason' => "撥補至 {$targetWarehouse->name}" . ($validated['notes'] ? " ({$validated['notes']})" : ""),
-                'actual_time' => $validated['transferDate'],
-                'user_id' => auth()->id(),
-            ]);
-
-            // 4. 執行庫存轉移 (增加目標)
-            $oldTargetQty = $targetInventory->quantity;
-            $newTargetQty = $oldTargetQty + $validated['quantity'];
-
-            // 設定活動紀錄原因
-            $targetInventory->activityLogReason = "撥補入庫 來自 {$sourceWarehouse->name}";
-            // 確保目標庫存也有成本 (如果是繼承來的)
-            if ($targetInventory->unit_cost == 0 && $sourceInventory->unit_cost > 0) {
-                 $targetInventory->unit_cost = $sourceInventory->unit_cost;
+                return redirect()->back()->with('success', '撥補成功，庫存已更新');
+            } catch (\Exception $e) {
+                return redirect()->back()->withErrors(['items' => $e->getMessage()]);
             }
-            $targetInventory->quantity = $newTargetQty;
-            $targetInventory->total_value = $targetInventory->quantity * $targetInventory->unit_cost; // 更新總值
-            $targetInventory->save();
+        }
 
-            // 記錄目標異動
-            $targetInventory->transactions()->create([
-                'type' => '撥補入庫',
-                'quantity' => $validated['quantity'],
-                'unit_cost' => $targetInventory->unit_cost, // 記錄
-                'balance_before' => $oldTargetQty,
-                'balance_after' => $newTargetQty,
-                'reason' => "來自 {$sourceWarehouse->name} 的撥補" . ($validated['notes'] ? " ({$validated['notes']})" : ""),
-                'actual_time' => $validated['transferDate'],
-                'user_id' => auth()->id(),
+        return redirect()->route('inventory.transfer.show', [$order->id])
+            ->with('success', '已建立調撥單');
+    }
+
+    public function show(InventoryTransferOrder $order)
+    {
+        $order->load(['items.product.baseUnit', 'fromWarehouse', 'toWarehouse', 'transitWarehouse', 'createdBy', 'postedBy', 'dispatchedBy', 'receivedBy', 'storeRequisition']);
+
+        $orderData = [
+            'id' => (string) $order->id,
+            'doc_no' => $order->doc_no,
+            'from_warehouse_id' => (string) $order->from_warehouse_id,
+            'from_warehouse_name' => $order->fromWarehouse->name,
+            'from_warehouse_default_transit' => $order->fromWarehouse->default_transit_warehouse_id ? (string)$order->fromWarehouse->default_transit_warehouse_id : null,
+            'to_warehouse_id' => (string) $order->to_warehouse_id,
+            'to_warehouse_name' => $order->toWarehouse->name,
+            'to_warehouse_type' => $order->toWarehouse->type->value,
+            // 在途倉資訊
+            'transit_warehouse_id' => $order->transit_warehouse_id ? (string) $order->transit_warehouse_id : null,
+            'transit_warehouse_name' => $order->transitWarehouse?->name,
+            'transit_warehouse_plate' => $order->transitWarehouse?->license_plate,
+            'transit_warehouse_driver' => $order->transitWarehouse?->driver_name,
+            'status' => $order->status,
+            'remarks' => $order->remarks,
+            'created_at' => $order->created_at->format('Y-m-d H:i'),
+            'created_by' => $order->createdBy?->name,
+            'posted_at' => $order->posted_at?->format('Y-m-d H:i'),
+            'posted_by' => $order->postedBy?->name,
+            'dispatched_at' => $order->dispatched_at?->format('Y-m-d H:i'),
+            'dispatched_by' => $order->dispatchedBy?->name,
+            'received_at' => $order->received_at?->format('Y-m-d H:i'),
+            'received_by' => $order->receivedBy?->name,
+            'requisition' => $order->storeRequisition ? [
+                'id' => (string) $order->storeRequisition->id,
+                'doc_no' => $order->storeRequisition->doc_no,
+            ] : null,
+            'items' => $order->items->map(function ($item) use ($order) {
+                $stock = Inventory::where('warehouse_id', $order->from_warehouse_id)
+                    ->where('product_id', $item->product_id)
+                    ->where('batch_number', $item->batch_number)
+                    ->first();
+
+                return [
+                    'id' => (string) $item->id,
+                    'product_id' => (string) $item->product_id,
+                    'product_name' => $item->product->name,
+                    'product_code' => $item->product->code,
+                    'batch_number' => $item->batch_number,
+                    'expiry_date' => $stock && $stock->expiry_date ? $stock->expiry_date->format('Y-m-d') : null,
+                    'unit' => $item->product->baseUnit?->name,
+                    'quantity' => (float) $item->quantity,
+                    'position' => $item->position,
+                    'max_quantity' => $item->snapshot_quantity ? (float) $item->snapshot_quantity : ($stock ? (float) $stock->quantity : 0.0),
+                    'notes' => $item->notes,
+                ];
+            }),
+        ];
+
+        // 取得在途倉庫列表供前端選擇
+        $transitWarehouses = Warehouse::where('type', WarehouseType::TRANSIT)
+            ->get()
+            ->map(fn($w) => [
+                'id' => (string) $w->id,
+                'name' => $w->name,
+                'license_plate' => $w->license_plate,
+                'driver_name' => $w->driver_name,
             ]);
 
-            // TODO: 未來若有獨立的 TransferOrder 模型，可在此建立紀錄
+        return Inertia::render('Inventory/Transfer/Show', [
+            'order' => $orderData,
+            'transitWarehouses' => $transitWarehouses,
+        ]);
+    }
 
-            return redirect()->back()->with('success', '撥補單已建立且庫存已轉移');
-        });
+    public function update(Request $request, InventoryTransferOrder $order)
+    {
+        // 收貨動作：僅限 dispatched 狀態
+        if ($request->input('action') === 'receive') {
+            if ($order->status !== 'dispatched') {
+                return redirect()->back()->with('error', '僅能對已出貨的調撥單進行收貨確認');
+            }
+            try {
+                $this->transferService->receive($order, auth()->id());
+                return redirect()->route('inventory.transfer.index')
+                    ->with('success', '調撥單已收貨完成');
+            } catch (ValidationException $e) {
+                return redirect()->back()->withErrors($e->errors());
+            } catch (\Exception $e) {
+                return redirect()->back()->withErrors(['items' => $e->getMessage()]);
+            }
+        }
+
+        // 以下操作僅限草稿
+        if ($order->status !== 'draft') {
+            return redirect()->back()->with('error', '只能修改草稿狀態的單據');
+        }
+
+        // 1. 更新在途倉庫（如果前端有傳）
+        if ($request->has('transit_warehouse_id')) {
+            $order->transit_warehouse_id = $request->input('transit_warehouse_id') ?: null;
+        }
+
+        // 2. 先更新資料 (如果請求中包含 items，則先執行儲存)
+        $itemsChanged = false;
+        if ($request->has('items')) {
+            if ($order->storeRequisition()->exists()) {
+                return redirect()->back()->with('error', '由叫貨單自動產生的調撥單無法修改明細');
+            }
+            $validated = $request->validate([
+                'items' => 'array',
+                'items.*.product_id' => 'required|exists:products,id',
+                'items.*.quantity' => 'required|numeric|min:0.01',
+                'items.*.batch_number' => 'nullable|string',
+                'items.*.position' => 'nullable|string',
+                'items.*.notes' => 'nullable|string',
+            ]);
+            $itemsChanged = $this->transferService->updateItems($order, $validated['items']);
+        }
+
+        $remarksChanged = false;
+        if ($request->has('remarks')) {
+            $remarksChanged = $order->remarks !== $request->input('remarks');
+            $order->remarks = $request->input('remarks');
+        }
+
+        if ($itemsChanged || $remarksChanged || $order->isDirty()) {
+            $order->touch(); 
+            $message = '儲存成功';
+        } else {
+            $message = '資料未變更';
+        }
+
+        // 3. 判斷是否需要出貨/過帳
+        if ($request->input('action') === 'post') {
+            try {
+                $this->transferService->dispatch($order, auth()->id());
+                $hasTransit = !empty($order->transit_warehouse_id);
+                $successMsg = $hasTransit ? '調撥單已出貨，庫存已轉入在途倉' : '調撥單已過帳完成';
+                return redirect()->route('inventory.transfer.index')
+                    ->with('success', $successMsg);
+            } catch (ValidationException $e) {
+                return redirect()->back()->withErrors($e->errors());
+            } catch (\Exception $e) {
+                return redirect()->back()->withErrors(['items' => $e->getMessage()]);
+            }
+        }
+
+        return redirect()->back()->with('success', $message);
+    }
+
+    public function destroy(InventoryTransferOrder $order)
+    {
+        if ($order->status !== 'draft') {
+            return redirect()->back()->with('error', '只能刪除草稿狀態的單據');
+        }
+
+        // 刪除前必須先釋放預留庫存
+        foreach ($order->items as $item) {
+            $inv = Inventory::where('warehouse_id', $order->from_warehouse_id)
+                ->where('product_id', $item->product_id)
+                ->where('batch_number', $item->batch_number)
+                ->first();
+            if ($inv) {
+                $inv->releaseReservedQuantity($item->quantity);
+            }
+        }
+
+        $order->items()->delete();
+        $order->delete();
+
+        return redirect()->route('inventory.transfer.index')
+            ->with('success', '調撥單已刪除');
     }
 
     /**
-     * 獲取特定倉庫的庫存列表 (API)
+     * 獲取特定倉庫的庫存列表 (API) - 保留給前端選擇商品用
      */
     public function getWarehouseInventories(Warehouse $warehouse)
     {
         $inventories = $warehouse->inventories()
             ->with(['product.baseUnit', 'product.category'])
-            ->where('quantity', '>', 0) // 只回傳有庫存的
+            ->where('quantity', '>', 0) 
             ->get()
             ->map(function ($inv) {
                 return [
                     'product_id' => (string) $inv->product_id,
                     'product_name' => $inv->product->name,
+                    'product_code' => $inv->product->code,
+                    'product_barcode' => $inv->product->barcode,
                     'batch_number' => $inv->batch_number,
                     'quantity' => (float) $inv->quantity,
-                    'unit_cost' => (float) $inv->unit_cost, // 新增
-                    'total_value' => (float) $inv->total_value, // 新增
+                    'unit_cost' => (float) $inv->unit_cost,
                     'unit_name' => $inv->product->baseUnit?->name ?? '個',
                     'expiry_date' => $inv->expiry_date ? $inv->expiry_date->format('Y-m-d') : null,
                 ];
@@ -139,4 +327,30 @@ class TransferOrderController extends Controller
 
         return response()->json($inventories);
     }
+    public function importItems(Request $request, InventoryTransferOrder $order)
+    {
+        if ($order->status !== 'draft') {
+            return redirect()->back()->with('error', '只能在草稿狀態下匯入明細');
+        }
+
+        $request->validate([
+            'file' => 'required|file|mimes:xlsx,xls,csv',
+        ]);
+
+        try {
+            \Maatwebsite\Excel\Facades\Excel::import(new \App\Modules\Inventory\Imports\InventoryTransferItemImport($order), $request->file('file'));
+            return redirect()->back()->with('success', '匯入成功');
+        } catch (\Exception $e) {
+            return redirect()->back()->with('error', '匯入失敗：' . $e->getMessage());
+        }
+    }
+
+    public function template()
+    {
+        return \Maatwebsite\Excel\Facades\Excel::download(
+            new \App\Modules\Inventory\Exports\InventoryTransferTemplateExport(),
+            '調撥單明細匯入範本.xlsx'
+        );
+    }
 }
+

app/Modules/Inventory/Controllers/WarehouseController.php

@@ -24,69 +24,130 @@ class WarehouseController extends Controller
             });
         }
 
+        $defaultPerPage = \App\Modules\Core\Models\SystemSetting::getVal('display.per_page', 10);
+        $perPage = $request->input('per_page', $defaultPerPage);
+        
+        if (!in_array((int)$perPage, [10, 20, 50, 100])) {
+            $perPage = $defaultPerPage;
+        }
+
         $warehouses = $query->withSum('inventories as book_stock', 'quantity') // 帳面庫存 = 所有庫存總和
+            ->withSum('inventories as book_amount', 'total_value') // 帳面金額
             ->withSum(['inventories as available_stock' => function ($query) {
-                // 可用庫存 = 庫存 > 0 且 品質正常 且 (未過期 或 無效期)
+                // 可用庫存條件
                 $query->where('quantity', '>', 0)
                       ->where('quality_status', 'normal')
+                      ->whereHas('warehouse', function ($q) {
+                          $q->where('type', '!=', \App\Enums\WarehouseType::QUARANTINE);
+                      })
                       ->where(function ($q) {
                           $q->whereNull('expiry_date')
                             ->orWhere('expiry_date', '>=', now());
                       });
             }], 'quantity')
+            ->withSum(['inventories as available_amount' => function ($query) {
+                // 可用金額條件 (與可用庫存一致)
+                $query->where('quantity', '>', 0)
+                      ->where('quality_status', 'normal')
+                      ->whereHas('warehouse', function ($q) {
+                          $q->where('type', '!=', \App\Enums\WarehouseType::QUARANTINE);
+                      })
+                      ->where(function ($q) {
+                          $q->whereNull('expiry_date')
+                            ->orWhere('expiry_date', '>=', now());
+                      });
+            }], 'total_value')
+            ->withSum(['inventories as abnormal_amount' => function ($query) {
+                $query->where('quantity', '>', 0)
+                      ->where(function ($q) {
+                          $q->where('quality_status', '!=', 'normal')
+                            ->orWhere(function ($sq) {
+                                $sq->whereNotNull('expiry_date')
+                                   ->where('expiry_date', '<', now());
+                            })
+                            ->orWhereHas('warehouse', function ($wq) {
+                                $wq->where('type', \App\Enums\WarehouseType::QUARANTINE);
+                            });
+                      });
+            }], 'total_value')
+            ->addSelect(['low_stock_count' => function ($query) {
+                $query->selectRaw('count(*)')
+                    ->from('warehouse_product_safety_stocks as ss')
+                    ->whereColumn('ss.warehouse_id', 'warehouses.id')
+                    ->whereRaw('(SELECT COALESCE(SUM(quantity), 0) FROM inventories WHERE warehouse_id = ss.warehouse_id AND product_id = ss.product_id) < ss.safety_stock');
+            }])
             ->orderBy('created_at', 'desc')
-            ->paginate(10)
+            ->paginate($perPage)
             ->withQueryString();
 
-        // 修正各倉庫列表中的可用庫存計算：若倉庫不可銷售，則可用庫存為 0
-        $warehouses->getCollection()->transform(function ($w) {
-            if (!$w->is_sellable) {
-                $w->available_stock = 0;
-            }
-            return $w;
-        });
-
         // 計算全域總計 (不分頁)
         $totals = [
             'available_stock' => \App\Modules\Inventory\Models\Inventory::where('quantity', '>', 0)
                 ->where('quality_status', 'normal')
                 ->whereHas('warehouse', function ($q) {
-                    $q->where('is_sellable', true);
+                    $q->where('type', '!=', \App\Enums\WarehouseType::QUARANTINE);
                 })
                 ->where(function ($q) {
                     $q->whereNull('expiry_date')
                       ->orWhere('expiry_date', '>=', now());
                 })->sum('quantity'),
+            'available_amount' => \App\Modules\Inventory\Models\Inventory::where('quantity', '>', 0)
+                ->where('quality_status', 'normal')
+                ->whereHas('warehouse', function ($q) {
+                    $q->where('type', '!=', \App\Enums\WarehouseType::QUARANTINE);
+                })
+                ->where(function ($q) {
+                    $q->whereNull('expiry_date')
+                      ->orWhere('expiry_date', '>=', now());
+                })->sum('total_value'),
+            'abnormal_amount' => \App\Modules\Inventory\Models\Inventory::where('quantity', '>', 0)
+                ->where(function ($q) {
+                    $q->where('quality_status', '!=', 'normal')
+                      ->orWhere(function ($sq) {
+                          $sq->whereNotNull('expiry_date')
+                             ->where('expiry_date', '<', now());
+                      })
+                      ->orWhereHas('warehouse', function ($wq) {
+                          $wq->where('type', \App\Enums\WarehouseType::QUARANTINE);
+                      });
+                })->sum('total_value'),
             'book_stock' => \App\Modules\Inventory\Models\Inventory::sum('quantity'),
+            'book_amount' => \App\Modules\Inventory\Models\Inventory::sum('total_value'),
         ];
 
+        // 取得在途倉列表供前端選擇「預設在途倉」
+        $transitWarehouses = Warehouse::where('type', \App\Enums\WarehouseType::TRANSIT)
+            ->select('id', 'name', 'license_plate', 'driver_name')
+            ->orderBy('name')
+            ->get()
+            ->map(fn ($w) => [
+                'id' => (string) $w->id,
+                'name' => $w->name,
+                'license_plate' => $w->license_plate,
+                'driver_name' => $w->driver_name,
+            ]);
+
         return Inertia::render('Warehouse/Index', [
             'warehouses' => $warehouses,
             'totals' => $totals,
-            'filters' => $request->only(['search']),
+            'transitWarehouses' => $transitWarehouses,
+            'filters' => $request->only(['search', 'per_page']),
         ]);
     }
 
     public function store(Request $request)
     {
         $validated = $request->validate([
+            'code' => 'required|string|max:20|unique:warehouses,code',
             'name' => 'required|string|max:50',
             'address' => 'nullable|string|max:255',
             'description' => 'nullable|string',
-            'is_sellable' => 'nullable|boolean',
             'type' => 'required|string',
             'license_plate' => 'nullable|string|max:20',
             'driver_name' => 'nullable|string|max:50',
+            'default_transit_warehouse_id' => 'nullable|exists:warehouses,id',
         ]);
 
-        // 自動產生代碼
-        $prefix = 'WH';
-        $lastWarehouse = Warehouse::latest('id')->first();
-        $nextId = $lastWarehouse ? $lastWarehouse->id + 1 : 1;
-        $code = $prefix . str_pad($nextId, 3, '0', STR_PAD_LEFT);
-
-        $validated['code'] = $code;
-
         Warehouse::create($validated);
 
         return redirect()->back()->with('success', '倉庫已建立');
@@ -95,13 +156,14 @@ class WarehouseController extends Controller
     public function update(Request $request, Warehouse $warehouse)
     {
         $validated = $request->validate([
+            'code' => 'required|string|max:20|unique:warehouses,code,' . $warehouse->id,
             'name' => 'required|string|max:50',
             'address' => 'nullable|string|max:255',
             'description' => 'nullable|string',
-            'is_sellable' => 'nullable|boolean',
             'type' => 'required|string',
             'license_plate' => 'nullable|string|max:20',
             'driver_name' => 'nullable|string|max:50',
+            'default_transit_warehouse_id' => 'nullable|exists:warehouses,id',
         ]);
 
         $warehouse->update($validated);
@@ -111,8 +173,9 @@ class WarehouseController extends Controller
 
     public function destroy(Warehouse $warehouse)
     {
-        // 檢查是否有相關聯的採購單
-        if ($warehouse->purchaseOrders()->exists()) {
+        // 檢查是否有相關聯的採購單 (跨模組檢查，不使用模型關聯以符合解耦規範)
+        $hasPurchaseOrders = \App\Modules\Procurement\Models\PurchaseOrder::where('warehouse_id', $warehouse->id)->exists();
+        if ($hasPurchaseOrders) {
             return redirect()->back()->with('error', '無法刪除：該倉庫有相關聯的採購單，請先處理採購單。');
         }
 

app/Modules/Inventory/Events/GoodsReceiptApprovedEvent.php

@@ -0,0 +1,22 @@
+<?php
+
+namespace App\Modules\Inventory\Events;
+
+use Illuminate\Broadcasting\InteractsWithSockets;
+use Illuminate\Foundation\Events\Dispatchable;
+use Illuminate\Queue\SerializesModels;
+
+class GoodsReceiptApprovedEvent
+{
+    use Dispatchable, InteractsWithSockets, SerializesModels;
+
+    public $goodsReceiptId;
+
+    /**
+     * Create a new event instance.
+     */
+    public function __construct(int $goodsReceiptId)
+    {
+        $this->goodsReceiptId = $goodsReceiptId;
+    }
+}

app/Modules/Inventory/Exports/InstructionSheet.php

@@ -0,0 +1,54 @@
+<?php
+
+namespace App\Modules\Inventory\Exports;
+
+use Maatwebsite\Excel\Concerns\FromCollection;
+use Maatwebsite\Excel\Concerns\WithHeadings;
+use Maatwebsite\Excel\Concerns\WithTitle;
+use Maatwebsite\Excel\Concerns\WithStyles;
+use PhpOffice\PhpSpreadsheet\Worksheet\Worksheet;
+
+class InstructionSheet implements FromCollection, WithHeadings, WithTitle, WithStyles
+{
+    public function title(): string
+    {
+        return '填寫說明';
+    }
+
+    public function headings(): array
+    {
+        return [
+            '欄位名稱',
+            '是否必填',
+            '填寫說明',
+        ];
+    }
+
+    public function collection()
+    {
+        return collect([
+            ['商品代號', '選填', '2-8 碼，若未填寫系統將自動生成。若代號已存在，將更新該商品資料。'],
+            ['條碼', '選填', '13 碼數字，若未填寫系統將自動生成。若條碼已存在（優先比對），將更新該商品資料。'],
+            ['商品名稱', '必填', '請填寫完整商品名稱。'],
+            ['類別名稱', '必填', '必須為系統中已存在的類別名稱（如：飲品）。'],
+            ['品牌', '選填', '商品品牌名稱。'],
+            ['規格', '選填', '商品規格描述（如：25kg/袋）。'],
+            ['基本單位', '必填', '必須為系統中已存在的單位名稱（如：瓶、個）。'],
+            ['大單位', '選填', '若有大單位換算請填寫（如：箱）。'],
+            ['換算率', '若有大單位則必填', '1 個大單位等於多少個基本單位。'],
+            ['成本價', '選填', '數字，預設為 0。'],
+            ['售價', '選填', '數字，預設為 0。'],
+            ['會員價', '選填', '數字，預設為 0。'],
+            ['批發價', '選填', '數字，預設為 0。'],
+        ]);
+    }
+
+    public function styles(Worksheet $sheet)
+    {
+        return [
+            // 第一行標題粗體
+            1 => ['font' => ['bold' => true]],
+            // 欄位寬度自動
+        ];
+    }
+}

app/Modules/Inventory/Exports/InventoryReportExport.php

@@ -0,0 +1,65 @@
+<?php
+
+namespace App\Modules\Inventory\Exports;
+
+use App\Modules\Inventory\Services\InventoryReportService;
+use Maatwebsite\Excel\Concerns\FromCollection;
+use Maatwebsite\Excel\Concerns\WithHeadings;
+use Maatwebsite\Excel\Concerns\WithMapping;
+use Maatwebsite\Excel\Concerns\ShouldAutoSize;
+use Maatwebsite\Excel\Concerns\WithStyles;
+use PhpOffice\PhpSpreadsheet\Worksheet\Worksheet;
+
+class InventoryReportExport implements FromCollection, WithHeadings, WithMapping, ShouldAutoSize, WithStyles
+{
+    protected $service;
+    protected $filters;
+
+    public function __construct(InventoryReportService $service, array $filters)
+    {
+        $this->service = $service;
+        $this->filters = $filters;
+    }
+
+    public function collection()
+    {
+        return $this->service->getReportData($this->filters, null); // perPage = null to get all
+    }
+
+    public function headings(): array
+    {
+        return [
+            '商品代碼',
+            '商品名稱',
+            '分類',
+            '進貨量',
+            '出貨量',
+            '調撥入',
+            '調撥出',
+            '調整量',
+            '淨變動',
+        ];
+    }
+
+    public function map($row): array
+    {
+        return [
+            $row->product_code,
+            $row->product_name,
+            $row->category_name ?? '-',
+            $row->inbound_qty,
+            $row->outbound_qty,
+            $row->transfer_in_qty,
+            $row->transfer_out_qty,
+            $row->adjust_qty,
+            $row->net_change,
+        ];
+    }
+
+    public function styles(Worksheet $sheet)
+    {
+        return [
+            1 => ['font' => ['bold' => true]],
+        ];
+    }
+}

app/Modules/Inventory/Exports/InventoryTemplateExport.php

@@ -0,0 +1,87 @@
+<?php
+
+namespace App\Modules\Inventory\Exports;
+
+use Maatwebsite\Excel\Concerns\WithMultipleSheets;
+use Maatwebsite\Excel\Concerns\FromArray;
+use Maatwebsite\Excel\Concerns\WithHeadings;
+use Maatwebsite\Excel\Concerns\WithTitle;
+use Maatwebsite\Excel\Concerns\ShouldAutoSize;
+
+class InventoryTemplateExport implements WithMultipleSheets
+{
+    public function sheets(): array
+    {
+        return [
+            new InventoryDataSheet(),
+            new InventoryInstructionSheet(),
+        ];
+    }
+}
+
+class InventoryDataSheet implements FromArray, WithHeadings, WithTitle, ShouldAutoSize
+{
+    public function array(): array
+    {
+        // 資料分頁保持完全空白
+        return [];
+    }
+
+    public function headings(): array
+    {
+        return [
+            '商品條碼',
+            '商品代號',
+            '商品名稱',
+            '數量',
+            '入庫單價',
+            '儲位/貨道',
+            '批號',
+            '產地',
+            '效期',
+        ];
+    }
+
+    public function title(): string
+    {
+        return '資料填寫';
+    }
+}
+
+class InventoryInstructionSheet implements FromArray, WithHeadings, WithTitle, ShouldAutoSize
+{
+    public function array(): array
+    {
+        return [
+            ['商品條碼', '擇一輸入', '系統會「優先」依據條碼匹配商品。若有填寫，條碼必須存在於系統中'],
+            ['商品代號', '擇一輸入', '若條碼未填寫，系統會依據代號匹配商品'],
+            ['商品名稱', '選填', '僅供對照參考，匯入時系統會自動忽略此欄位內容'],
+            ['數量', '必填', '入庫的商品數量，須為大於 0 的數字'],
+            ['入庫單價', '選填', '未填寫時將預設使用商品的「採購成本價」'],
+            ['儲位/貨道', '選填', '一般倉庫請填寫「儲位(位址)」，販賣機倉庫請填寫「貨道編號」(如: A1)'],
+            ['批號', '選填', '如需批次控管請填寫，若留空系統會自動標記為 "NO-BATCH"'],
+            ['產地', '選填', '商品的生產地資訊 (如：TW)'],
+            ['效期', '選填', '格式請務必使用 YYYY-MM-DD (例如: 2026-12-31)'],
+            ['', '', ''],
+            ['倉庫類型參考', '', '系統支援以下倉庫性質：'],
+            ['標準倉', '', '一般總倉、儲備倉'],
+            ['生產倉', '', '加工廠、中央廚房、原材料存放處'],
+            ['門市倉', '', '前台通路、店舖銷售現場'],
+            ['販賣機', '', 'IoT 自動販賣機設備，建議搭配「貨道」填寫'],
+            ['', '', ''],
+            ['匹配與匯入規則', '', '1. 系統會優先比對「商品條碼」，其次為「商品代號」。'],
+            ['', '', '2. 庫存將匯入至您在匯入前於系統介面所選擇的目標倉庫。'],
+            ['', '', '3. 若需區分不同貨道或批次，請分行填寫。'],
+        ];
+    }
+
+    public function headings(): array
+    {
+        return ['欄位名稱', '必要性', '填寫說明'];
+    }
+
+    public function title(): string
+    {
+        return '填寫規則';
+    }
+}

app/Modules/Inventory/Exports/InventoryTransferTemplateExport.php

@@ -0,0 +1,81 @@
+<?php
+
+namespace App\Modules\Inventory\Exports;
+
+use Maatwebsite\Excel\Concerns\Exportable;
+use Maatwebsite\Excel\Concerns\WithMultipleSheets;
+use Maatwebsite\Excel\Concerns\WithTitle;
+use Maatwebsite\Excel\Concerns\FromCollection;
+use Maatwebsite\Excel\Concerns\WithHeadings;
+use Maatwebsite\Excel\Concerns\WithStyles;
+use PhpOffice\PhpSpreadsheet\Worksheet\Worksheet;
+
+class InventoryTransferTemplateExport implements WithMultipleSheets
+{
+    use Exportable;
+
+    public function sheets(): array
+    {
+        return [
+            new class implements FromCollection, WithHeadings, WithTitle, WithStyles {
+                public function collection()
+                {
+                    return collect([
+                        ['P001', 'BATCH-2024001', '10', 'A1', '範例：請刪除此列後填寫'],
+                    ]);
+                }
+
+                public function headings(): array
+                {
+                    return ['商品代碼', '批號', '數量', '貨道/儲位', '備註'];
+                }
+
+                public function title(): string
+                {
+                    return '明細匯入';
+                }
+
+                public function styles(Worksheet $sheet)
+                {
+                    return [
+                        1 => ['font' => ['bold' => true]],
+                    ];
+                }
+            },
+            new class implements FromCollection, WithHeadings, WithTitle, WithStyles {
+                public function collection()
+                {
+                    return collect([
+                        ['商品代碼', '必填', '請填寫系統中已存在的商品代號'],
+                        ['數量', '必填', '必須為大於 0 的數字'],
+                        ['批號', '選填', '若不填寫將自動對應「NO-BATCH」庫存'],
+                        ['貨道/儲位', '選填', '主要用於目的倉庫為「販賣機」時指定貨道'],
+                        ['備註', '選填', '可填寫該筆明細的備註說明'],
+                        ['', '', ''],
+                        ['提示', '附加模式', '匯入的明細將附加至現有單據，不會覆蓋原有資料'],
+                    ]);
+                }
+
+                public function headings(): array
+                {
+                    return ['欄位名稱', '必要性', '說明'];
+                }
+
+                public function title(): string
+                {
+                    return '匯入規則說明';
+                }
+
+                public function styles(Worksheet $sheet)
+                {
+                    $sheet->getColumnDimension('A')->setWidth(15);
+                    $sheet->getColumnDimension('B')->setWidth(15);
+                    $sheet->getColumnDimension('C')->setWidth(50);
+                    return [
+                        1 => ['font' => ['bold' => true]],
+                    ];
+                }
+            },
+        ];
+    }
+}

app/Modules/Inventory/Exports/ProductImportSheet.php

@@ -0,0 +1,43 @@
+<?php
+
+namespace App\Modules\Inventory\Exports;
+
+use Maatwebsite\Excel\Concerns\WithHeadings;
+use Maatwebsite\Excel\Concerns\WithColumnFormatting;
+use Maatwebsite\Excel\Concerns\WithTitle;
+use PhpOffice\PhpSpreadsheet\Style\NumberFormat;
+
+class ProductImportSheet implements WithHeadings, WithColumnFormatting, WithTitle
+{
+    public function title(): string
+    {
+        return '商品匯入';
+    }
+
+    public function headings(): array
+    {
+        return [
+            '商品代號(選填)',
+            '條碼(選填)',
+            '商品名稱',
+            '類別名稱',
+            '品牌',
+            '規格',
+            '基本單位',
+            '大單位',
+            '換算率',
+            '成本價',
+            '售價',
+            '會員價',
+            '批發價',
+        ];
+    }
+
+    public function columnFormats(): array
+    {
+        return [
+            'A' => NumberFormat::FORMAT_TEXT, // 商品代號
+            'B' => NumberFormat::FORMAT_TEXT, // 條碼
+        ];
+    }
+}

app/Modules/Inventory/Exports/ProductTemplateExport.php

@@ -0,0 +1,16 @@
+<?php
+
+namespace App\Modules\Inventory\Exports;
+
+use Maatwebsite\Excel\Concerns\WithMultipleSheets;
+
+class ProductTemplateExport implements WithMultipleSheets
+{
+    public function sheets(): array
+    {
+        return [
+            new ProductImportSheet(),
+            new InstructionSheet(),
+        ];
+    }
+}

app/Modules/Inventory/Exports/StockQueryExport.php

@@ -0,0 +1,169 @@
+<?php
+
+namespace App\Modules\Inventory\Exports;
+
+use App\Modules\Inventory\Models\Inventory;
+use Illuminate\Support\Facades\DB;
+use Maatwebsite\Excel\Concerns\FromCollection;
+use Maatwebsite\Excel\Concerns\WithHeadings;
+use Maatwebsite\Excel\Concerns\WithMapping;
+use Maatwebsite\Excel\Concerns\ShouldAutoSize;
+use Maatwebsite\Excel\Concerns\WithStyles;
+use PhpOffice\PhpSpreadsheet\Worksheet\Worksheet;
+
+class StockQueryExport implements FromCollection, WithHeadings, WithMapping, ShouldAutoSize, WithStyles
+{
+    protected array $filters;
+
+    public function __construct(array $filters = [])
+    {
+        $this->filters = $filters;
+    }
+
+    public function collection()
+    {
+        $today = now()->toDateString();
+        $expiryThreshold = now()->addDays(30)->toDateString();
+
+        $query = Inventory::query()
+            ->join('products', 'inventories.product_id', '=', 'products.id')
+            ->join('warehouses', 'inventories.warehouse_id', '=', 'warehouses.id')
+            ->leftJoin('categories', 'products.category_id', '=', 'categories.id')
+            ->leftJoin('warehouse_product_safety_stocks as ss', function ($join) {
+                $join->on('inventories.warehouse_id', '=', 'ss.warehouse_id')
+                     ->on('inventories.product_id', '=', 'ss.product_id');
+            })
+            ->whereNull('inventories.deleted_at')
+            ->select([
+                'inventories.id',
+                'inventories.quantity',
+                'inventories.batch_number',
+                'inventories.expiry_date',
+                'inventories.quality_status',
+                'products.code as product_code',
+                'products.name as product_name',
+                'categories.name as category_name',
+                'warehouses.name as warehouse_name',
+                'ss.safety_stock',
+            ]);
+
+        // 篩選
+        if (!empty($this->filters['warehouse_id'])) {
+            $query->where('inventories.warehouse_id', $this->filters['warehouse_id']);
+        }
+        if (!empty($this->filters['category_id'])) {
+            $query->where('products.category_id', $this->filters['category_id']);
+        }
+        if (!empty($this->filters['search'])) {
+            $search = $this->filters['search'];
+            $query->where(function ($q) use ($search) {
+                $q->where('products.code', 'like', "%{$search}%")
+                  ->orWhere('products.name', 'like', "%{$search}%")
+                  ->orWhere('inventories.batch_number', 'like', "%{$search}%")
+                  ->orWhere(\Illuminate\Support\Facades\DB::raw("CONCAT('BATCH-', inventories.id)"), 'like', "%{$search}%");
+            });
+        }
+        if (!empty($this->filters['status'])) {
+            switch ($this->filters['status']) {
+                case 'low_stock':
+                    $query->whereNotNull('ss.safety_stock')
+                          ->whereRaw('inventories.quantity <= ss.safety_stock')
+                          ->where('inventories.quantity', '>=', 0);
+                    break;
+                case 'negative':
+                    $query->where('inventories.quantity', '<', 0);
+                    break;
+                case 'expiring':
+                    $query->whereNotNull('inventories.expiry_date')
+                          ->where('inventories.expiry_date', '>', $today)
+                          ->where('inventories.expiry_date', '<=', $expiryThreshold);
+                    break;
+                case 'expired':
+                    $query->whereNotNull('inventories.expiry_date')
+                          ->where('inventories.expiry_date', '<=', $today);
+                    break;
+                case 'abnormal':
+                    $query->where(function ($q) use ($today, $expiryThreshold) {
+                        $q->where('inventories.quantity', '<', 0)
+                          ->orWhere(function ($q2) {
+                              $q2->whereNotNull('ss.safety_stock')
+                                 ->whereRaw('inventories.quantity <= ss.safety_stock');
+                          })
+                          ->orWhere(function ($q2) use ($expiryThreshold) {
+                              $q2->whereNotNull('inventories.expiry_date')
+                                 ->where('inventories.expiry_date', '<=', $expiryThreshold);
+                          });
+                    });
+                    break;
+            }
+        }
+
+        return $query->orderBy('products.code', 'asc')->get();
+    }
+
+    public function headings(): array
+    {
+        return [
+            '商品代碼',
+            '商品名稱',
+            '分類',
+            '倉庫',
+            '批號',
+            '數量',
+            '安全庫存',
+            '到期日',
+            '品質狀態',
+            '狀態',
+        ];
+    }
+
+    public function map($row): array
+    {
+        $today = now()->toDateString();
+        $expiryThreshold = now()->addDays(30)->toDateString();
+
+        $statuses = [];
+        if ($row->quantity < 0) {
+            $statuses[] = '負庫存';
+        }
+        if ($row->safety_stock !== null && $row->quantity <= $row->safety_stock && $row->quantity >= 0) {
+            $statuses[] = '低庫存';
+        }
+        if ($row->expiry_date) {
+            if ($row->expiry_date <= $today) {
+                $statuses[] = '已過期';
+            } elseif ($row->expiry_date <= $expiryThreshold) {
+                $statuses[] = '即將過期';
+            }
+        }
+        if (empty($statuses)) {
+            $statuses[] = '正常';
+        }
+
+        $qualityLabels = [
+            'normal' => '正常',
+            'inspecting' => '檢驗中',
+            'rejected' => '不合格',
+        ];
+
+        return [
+            $row->product_code,
+            $row->product_name,
+            $row->category_name ?? '-',
+            $row->warehouse_name,
+            $row->batch_number ?? '-',
+            $row->quantity,
+            $row->safety_stock ?? '-',
+            $row->expiry_date ?? '-',
+            $qualityLabels[$row->quality_status] ?? $row->quality_status ?? '-',
+            implode('、', $statuses),
+        ];
+    }
+
+    public function styles(Worksheet $sheet): array
+    {
+        return [
+            1 => ['font' => ['bold' => true]],
+        ];
+    }
+}

app/Modules/Inventory/Imports/InventoryImport.php

@@ -0,0 +1,141 @@
+<?php
+
+namespace App\Modules\Inventory\Imports;
+
+use App\Modules\Inventory\Models\Product;
+use App\Modules\Inventory\Models\Inventory;
+use App\Modules\Inventory\Models\Warehouse;
+use Maatwebsite\Excel\Concerns\ToModel;
+use Maatwebsite\Excel\Concerns\WithHeadingRow;
+use Maatwebsite\Excel\Concerns\WithValidation;
+use Maatwebsite\Excel\Concerns\WithMapping;
+use Maatwebsite\Excel\Concerns\SkipsEmptyRows;
+use Maatwebsite\Excel\Imports\HeadingRowFormatter;
+use Illuminate\Support\Facades\DB;
+
+class InventoryImport implements ToModel, WithHeadingRow, WithValidation, WithMapping, SkipsEmptyRows
+{
+    private $warehouse;
+    private $inboundDate;
+    private $notes;
+
+    public function __construct(Warehouse $warehouse, string $inboundDate, ?string $notes = null)
+    {
+        HeadingRowFormatter::default('none');
+        $this->warehouse = $warehouse;
+        
+        // 修正時間精度：將選定的日期與「現在的時分秒」結合
+        // 這樣既能保留使用者選的日期，又能提供精確的紀錄時點排順序
+        $this->inboundDate = \Illuminate\Support\Carbon::parse($inboundDate)->setTimeFrom(now())->toDateTimeString();
+        
+        $this->notes = $notes;
+    }
+
+    public function map($row): array
+    {
+        // 處理條碼或代號為字串
+        if (isset($row['商品條碼'])) {
+            $row['商品條碼'] = (string) $row['商品條碼'];
+        }
+        if (isset($row['商品代號'])) {
+            $row['商品代號'] = (string) $row['商品代號'];
+        }
+        if (isset($row['儲位/貨道'])) {
+            $row['儲位/貨道'] = (string) $row['儲位/貨道'];
+        }
+        return $row;
+    }
+
+    public function model(array $row)
+    {
+        // 查找商品
+        $product = null;
+        if (!empty($row['商品條碼'])) {
+            $product = Product::where('barcode', $row['商品條碼'])->first();
+        }
+        if (!$product && !empty($row['商品代號'])) {
+            $product = Product::where('code', $row['商品代號'])->first();
+        }
+
+        if (!$product) {
+            return null; // 透過 Validation 攔截
+        }
+
+        $quantity = (float) $row['數量'];
+        $unitCost = isset($row['入庫單價']) ? (float) $row['入庫單價'] : ($product->cost_price ?? 0);
+        $location = $row['儲位/貨道'] ?? null;
+        
+        // 批號邏輯：若 Excel 留空則使用 NO-BATCH
+        $batchNumber = !empty($row['批號']) ? $row['批號'] : 'NO-BATCH';
+        $originCountry = $row['產地'] ?? 'TW';
+        $expiryDate = !empty($row['效期']) ? $row['效期'] : null;
+
+        return DB::transaction(function () use ($product, $quantity, $unitCost, $location, $batchNumber, $originCountry, $expiryDate) {
+            // 使用與 InventoryController 相同的 firstOrNew 邏輯
+            $inventory = $this->warehouse->inventories()->withTrashed()->firstOrNew(
+                [
+                    'product_id' => $product->id,
+                    'batch_number' => $batchNumber,
+                    'location' => $location, // 加入儲位/貨道作為區分關鍵字
+                ],
+                [
+                    'quantity' => 0,
+                    'unit_cost' => $unitCost,
+                    'total_value' => 0,
+                    'arrival_date' => $this->inboundDate,
+                    'expiry_date' => $expiryDate,
+                    'origin_country' => $originCountry,
+                ]
+            );
+
+            if ($inventory->trashed()) {
+                $inventory->restore();
+            }
+
+            // 更新數量
+            $oldQty = $inventory->quantity;
+            $inventory->quantity += $quantity;
+            
+            // 更新單價與總價值
+            $inventory->unit_cost = $unitCost;
+            $inventory->total_value = $inventory->quantity * $unitCost;
+            $inventory->saveQuietly();
+
+            // 記錄交易歷史
+            $inventory->transactions()->create([
+                'warehouse_id' => $this->warehouse->id,
+                'product_id' => $product->id,
+                'batch_number' => $inventory->batch_number,
+                'quantity' => $quantity,
+                'unit_cost' => $unitCost,
+                'type' => '手動入庫',
+                'reason' => 'Excel 匯入入庫',
+                'balance_before' => $oldQty,
+                'balance_after' => $inventory->quantity,
+                'actual_time' => $this->inboundDate,
+                'notes' => $this->notes,
+                'expiry_date' => $inventory->expiry_date,
+            ]);
+
+            return $inventory;
+        });
+    }
+
+    public function rules(): array
+    {
+        return [
+            '商品條碼' => ['nullable', 'string'],
+            '商品代號' => ['nullable', 'string'],
+            '數量' => [
+                'required_with:商品條碼,商品代號', // 只有在有商品資訊時，數量才是必填
+                'numeric',
+                'min:0' // 允許數量為 0
+            ],
+            '入庫單價' => ['nullable', 'numeric', 'min:0'],
+            '儲位/貨道' => ['nullable', 'string', 'max:50'],
+            '批號' => ['nullable', 'string'],
+            '效期' => ['nullable', 'date'],
+            '產地' => ['nullable', 'string', 'max:2'],
+        ];
+    }
+}

app/Modules/Inventory/Imports/InventoryTransferItemImport.php

@@ -0,0 +1,131 @@
+<?php
+
+namespace App\Modules\Inventory\Imports;
+
+use App\Modules\Inventory\Models\InventoryTransferItem;
+use App\Modules\Inventory\Models\InventoryTransferOrder;
+use App\Modules\Inventory\Models\Product;
+use Illuminate\Support\Collection;
+use Maatwebsite\Excel\Concerns\ToCollection;
+use Maatwebsite\Excel\Concerns\WithHeadingRow;
+use Maatwebsite\Excel\Concerns\WithMultipleSheets;
+use Exception;
+
+class InventoryTransferItemImport implements ToCollection, WithMultipleSheets
+{
+    protected $transferOrder;
+
+    public function __construct(InventoryTransferOrder $transferOrder)
+    {
+        $this->transferOrder = $transferOrder;
+    }
+
+    public function collection(Collection $rows)
+    {
+        if ($rows->isEmpty()) {
+            throw new Exception("檔案中沒有資料。");
+        }
+
+        // 移除標題列並解析索引
+        $headerRow = $rows->shift();
+        $headers = $headerRow->toArray();
+        
+        // 建立標題對應索引 (支援中文與英文)
+        $colMap = [
+            'product_code' => -1,
+            'batch_number' => -1,
+            'quantity' => -1,
+            'position' => -1,
+            'notes' => -1,
+        ];
+
+        foreach ($headers as $index => $label) {
+            $label = trim((string)$label);
+            if (in_array($label, ['商品代碼', 'product_code', 'shang_pin_dai_ma'])) $colMap['product_code'] = $index;
+            if (in_array($label, ['批號', 'batch_number', 'pi_hao'])) $colMap['batch_number'] = $index;
+            if (in_array($label, ['數量', 'quantity', 'shu_liang'])) $colMap['quantity'] = $index;
+            if (in_array($label, ['貨道/儲位', '貨道', 'position', 'slot', 'huo_dao'])) $colMap['position'] = $index;
+            if (in_array($label, ['備註', 'notes', 'bei_zhu'])) $colMap['notes'] = $index;
+        }
+
+        // 檢查必要欄位是否有找到
+        if ($colMap['product_code'] === -1 || $colMap['quantity'] === -1) {
+            $foundHeaders = implode(', ', array_filter($headers));
+            throw new Exception("找不到必要的欄位「商品代碼」或「數量」。讀取到的標題為：{$foundHeaders}。請確認使用的是正確的範本。");
+        }
+
+        // 預先載入商品 (優化效能)
+        $productCodes = $rows->map(fn($row) => trim((string)($row[$colMap['product_code']] ?? '')))->filter()->unique()->toArray();
+        $products = Product::whereIn('code', $productCodes)->get()->keyBy('code');
+
+        $newItems = [];
+        $errors = [];
+
+        foreach ($rows as $index => $row) {
+            $productCode = trim((string)($row[$colMap['product_code']] ?? ''));
+            $quantity = $row[$colMap['quantity']] ?? null;
+            $batchNumber = $colMap['batch_number'] !== -1 ? trim((string)($row[$colMap['batch_number']] ?? '')) : '';
+            $position = $colMap['position'] !== -1 ? trim((string)($row[$colMap['position']] ?? '')) : null;
+            $notes = $colMap['notes'] !== -1 ? ($row[$colMap['notes']] ?? null) : null;
+
+            // 跳過全空行
+            if (empty($productCode) && ($quantity === null || $quantity === '')) {
+                continue;
+            }
+
+            $lineNum = $index + 2; // 因為 shift 過，且 Excel 從 1 開始
+
+            if (empty($productCode)) {
+                $errors[] = "第 {$lineNum} 行：商品代碼不能為空";
+                continue;
+            }
+
+            $product = $products->get($productCode);
+            if (!$product) {
+                $errors[] = "第 {$lineNum} 行：找不到商品代碼 '{$productCode}'";
+                continue;
+            }
+
+            if (!is_numeric($quantity) || (float)$quantity <= 0) {
+                $errors[] = "第 {$lineNum} 行：數量必須為大於 0 的數字 (目前值: " . ($quantity ?? '空') . ")";
+                continue;
+            }
+
+            if (empty($batchNumber)) {
+                $batchNumber = 'NO-BATCH';
+            }
+
+            $newItems[] = [
+                'transfer_order_id' => $this->transferOrder->id,
+                'product_id' => $product->id,
+                'batch_number' => $batchNumber,
+                'quantity' => (float)$quantity,
+                'position' => $position,
+                'notes' => $notes,
+                'created_at' => now(),
+                'updated_at' => now(),
+            ];
+        }
+
+        if (count($errors) > 0) {
+            throw new Exception(implode("\n", $errors));
+        }
+
+        if (count($newItems) === 0) {
+            throw new Exception("檔案中沒有可匯入的有效資料。");
+        }
+
+        InventoryTransferItem::insert($newItems);
+        $this->transferOrder->touch();
+    }
+
+    /**
+     * 指定只匯入第一個分頁 (明細匯入)
+     */
+    public function sheets(): array
+    {
+        return [
+            0 => $this,
+        ];
+    }
+}

app/Modules/Inventory/Imports/ProductImport.php

@@ -0,0 +1,185 @@
+<?php
+
+namespace App\Modules\Inventory\Imports;
+
+use App\Modules\Inventory\Models\Category;
+use App\Modules\Inventory\Models\Product;
+use App\Modules\Inventory\Models\Unit;
+use Illuminate\Validation\Rule;
+use Maatwebsite\Excel\Concerns\ToModel;
+use Maatwebsite\Excel\Concerns\WithHeadingRow;
+use Maatwebsite\Excel\Concerns\WithMapping;
+use Maatwebsite\Excel\Concerns\WithMultipleSheets;
+use Maatwebsite\Excel\Concerns\WithValidation;
+use Maatwebsite\Excel\Concerns\SkipsEmptyRows;
+use Maatwebsite\Excel\Imports\HeadingRowFormatter;
+
+/**
+ * 商品匯入主類別
+ *
+ * 實作 WithMultipleSheets 以限定只讀取第一個工作表（資料頁），
+ * 跳過第二個工作表（填寫說明頁），避免說明頁的資料被誤匯入並觸發驗證錯誤。
+ */
+class ProductImport implements WithMultipleSheets
+{
+    public function __construct()
+    {
+        // 禁用標題格式化，保留中文標題
+        HeadingRowFormatter::default('none');
+    }
+
+    /**
+     * 指定只處理第一個工作表 (index 0)
+     */
+    public function sheets(): array
+    {
+        return [
+            0 => new ProductDataSheetImport(),
+        ];
+    }
+}
+
+/**
+ * 商品匯入 - 資料工作表處理類別
+ *
+ * 負責實際的資料解析、驗證與儲存邏輯。
+ * 只會被套用到 Excel 的第一個工作表（資料頁）。
+ */
+class ProductDataSheetImport implements ToModel, WithHeadingRow, WithValidation, WithMapping, SkipsEmptyRows
+{
+    private $categories;
+    private $units;
+    private $productService;
+
+    public function __construct()
+    {
+        // 快取所有類別與單位，避免 N+1 查詢
+        $this->categories = Category::pluck('id', 'name');
+        $this->units = Unit::pluck('id', 'name');
+        $this->productService = app(\App\Modules\Inventory\Contracts\ProductServiceInterface::class);
+    }
+
+    /**
+     * 資料映射：將 Excel 原始標題（含「(選填)」）對應到乾淨的鍵名
+     *
+     * 注意：WithValidation 驗證的是 map() 之前的原始資料，
+     * 因此 rules() 中的鍵名必須匹配 Excel 的原始標題。
+     * map() 的返回值只影響 model() 接收到的資料。
+     */
+    public function map($row): array
+    {
+        $code = $row['商品代號(選填)'] ?? $row['商品代號'] ?? null;
+        $barcode = $row['條碼(選填)'] ?? $row['條碼'] ?? null;
+
+        return [
+            '商品代號' => $code !== null ? (string)$code : null,
+            '條碼' => $barcode !== null ? (string)$barcode : null,
+            '商品名稱' => $row['商品名稱'] ?? null,
+            '類別名稱' => $row['類別名稱'] ?? null,
+            '品牌' => $row['品牌'] ?? null,
+            '規格' => $row['規格'] ?? null,
+            '基本單位' => $row['基本單位'] ?? null,
+            '大單位' => $row['大單位'] ?? null,
+            '換算率' => isset($row['換算率']) ? (float)$row['換算率'] : null,
+            '成本價' => isset($row['成本價']) ? (float)$row['成本價'] : null,
+            '售價' => isset($row['售價']) ? (float)$row['售價'] : null,
+            '會員價' => isset($row['會員價']) ? (float)$row['會員價'] : null,
+            '批發價' => isset($row['批發價']) ? (float)$row['批發價'] : null,
+        ];
+    }
+
+    /**
+     * @param array $row (map() 回傳的乾淨鍵名陣列)
+     */
+    public function model(array $row)
+    {
+        // 查找關聯 ID
+        $categoryId = $this->categories[$row['類別名稱']] ?? null;
+        $baseUnitId = $this->units[$row['基本單位']] ?? null;
+        $largeUnitId = isset($row['大單位']) ? ($this->units[$row['大單位']] ?? null) : null;
+
+        // 若必要關聯找不到，理論上 Validation 會攔截，但此處做防禦性編程
+        if (!$categoryId || !$baseUnitId) {
+            return null;
+        }
+
+        $code = $row['商品代號'] ?? null;
+        $barcode = $row['條碼'] ?? null;
+
+        // Upsert 邏輯：透過 Service 統一查找與處理
+        $product = $this->productService->findByBarcodeOrCode($barcode, $code);
+
+        $data = [
+            'name' => $row['商品名稱'],
+            'category_id' => $categoryId,
+            'brand' => $row['品牌'] ?? null,
+            'specification' => $row['規格'] ?? null,
+            'base_unit_id' => $baseUnitId,
+            'large_unit_id' => $largeUnitId,
+            'conversion_rate' => $row['換算率'] ?? null,
+            'purchase_unit_id' => null,
+            'cost_price' => $row['成本價'] ?? null,
+            'price' => $row['售價'] ?? null,
+            'member_price' => $row['會員價'] ?? null,
+            'wholesale_price' => $row['批發價'] ?? null,
+        ];
+
+        if ($product) {
+            $this->productService->updateProduct($product, $data);
+        } else {
+            if (!empty($code)) $data['code'] = $code;
+            if (!empty($barcode)) $data['barcode'] = $barcode;
+            $this->productService->createProduct($data);
+        }
+
+        return null; // 返回 null，因為 Service 已經處理完儲存
+    }
+
+    /**
+     * 驗證規則
+     *
+     * 鍵名必須匹配 Excel 原始標題（含「(選填)」後綴），
+     * 因為 WithValidation 驗證的是 map() 之前的原始資料。
+     */
+    public function rules(): array
+    {
+        return [
+            '商品代號(選填)' => ['nullable', 'string', 'min:2', 'max:8'],
+            '條碼(選填)' => ['nullable', 'string'],
+            '商品名稱' => ['required', 'string'],
+            '類別名稱' => ['required', function($attribute, $value, $fail) {
+                if (!isset($this->categories[$value])) {
+                    $fail("找不到類別: " . $value);
+                }
+            }],
+            '基本單位' => ['required', function($attribute, $value, $fail) {
+                if (!isset($this->units[$value])) {
+                    $fail("找不到單位: " . $value);
+                }
+            }],
+            '大單位' => ['nullable', function($attribute, $value, $fail) {
+                if ($value && !isset($this->units[$value])) {
+                    $fail("找不到單位: " . $value);
+                }
+            }],
+
+            '換算率' => ['nullable', 'numeric', 'min:0.0001', 'required_with:大單位'],
+            '成本價' => ['nullable', 'numeric', 'min:0'],
+            '售價' => ['nullable', 'numeric', 'min:0'],
+            '會員價' => ['nullable', 'numeric', 'min:0'],
+            '批發價' => ['nullable', 'numeric', 'min:0'],
+        ];
+    }
+
+    /**
+     * 自訂驗證錯誤訊息的欄位名稱
+     * 把含 "(選填)" 後綴的欄位顯示為友善名稱
+     */
+    public function customValidationAttributes(): array
+    {
+        return [
+            '商品代號(選填)' => '商品代號',
+            '條碼(選填)' => '條碼',
+        ];
+    }
+}

app/Modules/Inventory/InventoryServiceProvider.php

@@ -4,13 +4,20 @@ namespace App\Modules\Inventory;
 
 use Illuminate\Support\ServiceProvider;
 use App\Modules\Inventory\Contracts\InventoryServiceInterface;
+use App\Modules\Inventory\Contracts\ProductServiceInterface;
 use App\Modules\Inventory\Services\InventoryService;
+use App\Modules\Inventory\Services\ProductService;
 
 class InventoryServiceProvider extends ServiceProvider
 {
     public function register(): void
     {
         $this->app->bind(InventoryServiceInterface::class, InventoryService::class);
+        $this->app->bind(ProductServiceInterface::class, ProductService::class);
+        $this->app->bind(
+            \App\Modules\Inventory\Contracts\GoodsReceiptServiceInterface::class,
+            \App\Modules\Inventory\Services\GoodsReceiptService::class
+        );
     }
 
     public function boot(): void

app/Modules/Inventory/Models/Category.php

@@ -29,12 +29,27 @@ class Category extends Model
 
     public function tapActivity(\Spatie\Activitylog\Contracts\Activity $activity, string $eventName)
     {
-        $properties = $activity->properties;
+        $properties = $activity->properties instanceof \Illuminate\Support\Collection 
+            ? $activity->properties->toArray() 
+            : $activity->properties;
         
         $snapshot = $properties['snapshot'] ?? [];
         $snapshot['name'] = $this->name;
         $properties['snapshot'] = $snapshot;
 
+        $resolver = function (&$data) {
+            if (empty($data) || !is_array($data)) return;
+            
+            foreach (['created_by', 'updated_by'] as $f) {
+                if (isset($data[$f]) && is_numeric($data[$f])) {
+                    $data[$f] = \App\Modules\Core\Models\User::find($data[$f])?->name;
+                }
+            }
+        };
+
+        if (isset($properties['attributes'])) $resolver($properties['attributes']);
+        if (isset($properties['old'])) $resolver($properties['old']);
+
         $activity->properties = $properties;
     }
 }

app/Modules/Inventory/Models/GoodsReceipt.php

@@ -0,0 +1,97 @@
+<?php
+
+namespace App\Modules\Inventory\Models;
+
+use Illuminate\Database\Eloquent\Factories\HasFactory;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\SoftDeletes;
+
+class GoodsReceipt extends Model
+{
+    use HasFactory, SoftDeletes;
+    use \Spatie\Activitylog\Traits\LogsActivity;
+
+    public const STATUS_DRAFT = 'draft';
+    public const STATUS_PENDING_AUDIT = 'pending_audit';
+    public const STATUS_COMPLETED = 'completed';
+    public const STATUS_REJECTED = 'rejected';
+
+    protected $fillable = [
+        'code',
+        'type',
+        'warehouse_id',
+        'purchase_order_id',
+        'vendor_id',
+        'received_date',
+        'status',
+        'remarks',
+        'user_id',
+    ];
+
+    protected $casts = [
+        'received_date' => 'date:Y-m-d',
+    ];
+
+    public function getActivitylogOptions(): \Spatie\Activitylog\LogOptions
+    {
+        return \Spatie\Activitylog\LogOptions::defaults()
+            ->logAll()
+            ->logOnlyDirty()
+            ->dontSubmitEmptyLogs();
+    }
+
+    public function tapActivity(\Spatie\Activitylog\Contracts\Activity $activity, string $eventName)
+    {
+        $properties = $activity->properties instanceof \Illuminate\Support\Collection 
+            ? $activity->properties->toArray() 
+            : $activity->properties;
+
+        $snapshot = $properties['snapshot'] ?? [];
+        $snapshot['doc_no'] = $this->code;
+        $snapshot['warehouse_name'] = $this->warehouse?->name;
+        
+        if (!isset($snapshot['vendor_name']) && $this->vendor_id) {
+            $vendor = app(\App\Modules\Procurement\Contracts\ProcurementServiceInterface::class)
+                ->getVendorsByIds([$this->vendor_id])->first();
+            $snapshot['vendor_name'] = $vendor?->name;
+        }
+        $properties['snapshot'] = $snapshot;
+
+        $resolver = function (&$data) {
+            if (empty($data) || !is_array($data)) return;
+            
+            foreach (['user_id', 'created_by', 'updated_by'] as $f) {
+                if (isset($data[$f]) && is_numeric($data[$f])) {
+                    $data[$f] = app(\App\Modules\Core\Contracts\CoreServiceInterface::class)->getUser($data[$f])?->name;
+                }
+            }
+            if (isset($data['warehouse_id']) && is_numeric($data['warehouse_id'])) {
+                $data['warehouse_id'] = \App\Modules\Inventory\Models\Warehouse::find($data['warehouse_id'])?->name;
+            }
+            if (isset($data['vendor_id']) && is_numeric($data['vendor_id'])) {
+                $vendor = app(\App\Modules\Procurement\Contracts\ProcurementServiceInterface::class)
+                    ->getVendorsByIds([$data['vendor_id']])->first();
+                $data['vendor_id'] = $vendor?->name;
+            }
+        };
+
+        if (isset($properties['attributes'])) $resolver($properties['attributes']);
+        if (isset($properties['old'])) $resolver($properties['old']);
+
+        $activity->properties = $properties;
+    }
+
+    public function items()
+    {
+        return $this->hasMany(GoodsReceiptItem::class);
+    }
+    
+    // Strict Mode: relationships to Warehouse is allowed (same module).
+    public function warehouse()
+    {
+        return $this->belongsTo(Warehouse::class);
+    }
+    
+    // Strict Mode: cross-module relationship to Vendor/User/PurchaseOrder is restricted.
+    // They are accessed via IDs or Services.
+}

app/Modules/Inventory/Models/GoodsReceiptItem.php

@@ -0,0 +1,39 @@
+<?php
+
+namespace App\Modules\Inventory\Models;
+
+use Illuminate\Database\Eloquent\Factories\HasFactory;
+use Illuminate\Database\Eloquent\Model;
+
+class GoodsReceiptItem extends Model
+{
+    use HasFactory;
+
+    protected $fillable = [
+        'goods_receipt_id',
+        'product_id',
+        'purchase_order_item_id',
+        'quantity_received',
+        'unit_price',
+        'total_amount',
+        'batch_number',
+        'expiry_date',
+    ];
+
+    protected $casts = [
+        'quantity_received' => 'decimal:2',
+        'unit_price' => 'decimal:2', // 暫定價格
+        'total_amount' => 'decimal:2',
+        'expiry_date' => 'date:Y-m-d',
+    ];
+
+    public function goodsReceipt()
+    {
+        return $this->belongsTo(GoodsReceipt::class);
+    }
+
+    public function product()
+    {
+        return $this->belongsTo(Product::class);
+    }
+}

app/Modules/Inventory/Models/Inventory.php

@@ -17,6 +17,7 @@ class Inventory extends Model
         'warehouse_id',
         'product_id',
         'quantity',
+        'reserved_quantity',
         'location',
         'unit_cost',
         'total_value',
@@ -34,6 +35,8 @@ class Inventory extends Model
     protected $casts = [
         'arrival_date' => 'date:Y-m-d',
         'expiry_date' => 'date:Y-m-d',
+        'quantity' => 'decimal:4',
+        'reserved_quantity' => 'decimal:4',
         'unit_cost' => 'decimal:4',
         'total_value' => 'decimal:4',
     ];
@@ -55,8 +58,11 @@ class Inventory extends Model
 
     public function tapActivity(\Spatie\Activitylog\Contracts\Activity $activity, string $eventName)
     {
-        $properties = $activity->properties;
-        $attributes = $properties['attributes'] ?? [];
+        // 核心：轉換為陣列以避免 Indirect modification error
+        $properties = $activity->properties instanceof \Illuminate\Support\Collection 
+            ? $activity->properties->toArray() 
+            : $activity->properties;
+
         $snapshot = $properties['snapshot'] ?? [];
 
         // 始終對名稱進行快照以便於上下文顯示，即使 ID 未更改
@@ -66,11 +72,28 @@ class Inventory extends Model
 
         // 如果已設定原因，則進行捕捉
         if ($this->activityLogReason) {
-            $attributes['_reason'] = $this->activityLogReason;
+            $properties['attributes']['_reason'] = $this->activityLogReason;
         }
         
-        $properties['attributes'] = $attributes;
         $properties['snapshot'] = $snapshot;
+
+        // 全域 ID 轉名稱邏輯
+        $resolver = function (&$data) {
+            if (empty($data) || !is_array($data)) return;
+            
+            // 倉庫 ID 轉換
+            if (isset($data['warehouse_id']) && is_numeric($data['warehouse_id'])) {
+                $data['warehouse_id'] = \App\Modules\Inventory\Models\Warehouse::find($data['warehouse_id'])?->name;
+            }
+            // 商品 ID 轉換
+            if (isset($data['product_id']) && is_numeric($data['product_id'])) {
+                $data['product_id'] = \App\Modules\Inventory\Models\Product::find($data['product_id'])?->name;
+            }
+        };
+
+        if (isset($properties['attributes'])) $resolver($properties['attributes']);
+        if (isset($properties['old'])) $resolver($properties['old']);
+
         $activity->properties = $properties;
     }
 
@@ -109,7 +132,33 @@ class Inventory extends Model
         });
     }
 
+    /**
+     * 可用庫存（實體庫存 - 預留庫存）
+     */
+    public function getAvailableQuantityAttribute()
+    {
+        return max(0, $this->quantity - $this->reserved_quantity);
+    }
 
+    /**
+     * 增加預留庫存（鎖定）
+     */
+    public function reserveQuantity(float|int $amount)
+    {
+        if ($amount <= 0) return;
+        $this->reserved_quantity += $amount;
+        $this->saveQuietly();
+    }
+
+    /**
+     * 釋放預留庫存（解鎖）
+     */
+    public function releaseReservedQuantity(float|int $amount)
+    {
+        if ($amount <= 0) return;
+        $this->reserved_quantity = max(0, $this->reserved_quantity - $amount);
+        $this->saveQuietly();
+    }
 
     /**
      * 產生批號

app/Modules/Inventory/Models/InventoryAdjustDoc.php

@@ -0,0 +1,144 @@
+<?php
+
+namespace App\Modules\Inventory\Models;
+
+use Illuminate\Database\Eloquent\Factories\HasFactory;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\BelongsTo;
+use Illuminate\Database\Eloquent\Relations\HasMany;
+use App\Modules\Core\Models\User;
+
+use Spatie\Activitylog\Traits\LogsActivity;
+use Spatie\Activitylog\LogOptions;
+
+class InventoryAdjustDoc extends Model
+{
+    use HasFactory, LogsActivity;
+
+    protected $fillable = [
+        'doc_no',
+        'count_doc_id',
+        'warehouse_id',
+        'status',
+        'reason',
+        'remarks',
+        'posted_at',
+        'created_by',
+        'updated_by',
+        'posted_by',
+    ];
+
+    protected $casts = [
+        'posted_at' => 'datetime',
+    ];
+
+    protected static function boot()
+    {
+        parent::boot();
+
+        static::creating(function ($model) {
+            if (empty($model->doc_no)) {
+                $today = date('Ymd');
+                $prefix = 'ADJ-' . $today . '-';
+                
+                $lastDoc = static::where('doc_no', 'like', $prefix . '%')
+                    ->orderBy('doc_no', 'desc')
+                    ->first();
+
+                if ($lastDoc) {
+                    $lastNumber = substr($lastDoc->doc_no, -2);
+                    $nextNumber = str_pad((int)$lastNumber + 1, 2, '0', STR_PAD_LEFT);
+                } else {
+                    $nextNumber = '01';
+                }
+
+                $model->doc_no = $prefix . $nextNumber;
+            }
+        });
+    }
+
+    public function warehouse(): BelongsTo
+    {
+        return $this->belongsTo(Warehouse::class);
+    }
+
+    public function countDoc(): BelongsTo
+    {
+        return $this->belongsTo(InventoryCountDoc::class, 'count_doc_id');
+    }
+
+    public function items(): HasMany
+    {
+        return $this->hasMany(InventoryAdjustItem::class, 'adjust_doc_id');
+    }
+
+    public function createdBy(): BelongsTo
+    {
+        return $this->belongsTo(User::class, 'created_by');
+    }
+
+    public function postedBy(): BelongsTo
+    {
+        return $this->belongsTo(User::class, 'posted_by');
+    }
+
+    public function getActivitylogOptions(): LogOptions
+    {
+        return LogOptions::defaults()
+            ->logFillable()
+            ->dontSubmitEmptyLogs();
+    }
+
+    public function tapActivity(\Spatie\Activitylog\Contracts\Activity $activity, string $eventName)
+    {
+        // 確保為陣列以進行修改
+        $properties = $activity->properties instanceof \Illuminate\Support\Collection 
+            ? $activity->properties->toArray() 
+            : $activity->properties;
+
+        $snapshot = $properties['snapshot'] ?? [];
+
+        // Snapshot key information
+        $snapshot['doc_no'] = $this->doc_no;
+        $snapshot['warehouse_name'] = $this->warehouse ? $this->warehouse->name : null;
+        $snapshot['posted_at'] = $this->posted_at ? $this->posted_at->format('Y-m-d H:i:s') : null;
+        $snapshot['status'] = $this->status;
+        $snapshot['created_by_name'] = $this->createdBy ? $this->createdBy->name : null;
+        $snapshot['posted_by_name'] = $this->postedBy ? $this->postedBy->name : null;
+
+        $properties['snapshot'] = $snapshot;
+
+        // 全域 ID 轉名稱邏輯 (用於 attributes 與 old)
+        $convertIdsToNames = function (&$data) {
+            if (empty($data) || !is_array($data)) return;
+
+            // 倉庫 ID 轉換
+            if (isset($data['warehouse_id']) && is_numeric($data['warehouse_id'])) {
+                $warehouse = \App\Modules\Inventory\Models\Warehouse::find($data['warehouse_id']);
+                if ($warehouse) {
+                    $data['warehouse_id'] = $warehouse->name;
+                }
+            }
+
+            // 使用者 ID 轉換
+            $userFields = ['created_by', 'updated_by', 'posted_by'];
+            foreach ($userFields as $field) {
+                if (isset($data[$field]) && is_numeric($data[$field])) {
+                    $user = \App\Modules\Core\Models\User::find($data[$field]);
+                    if ($user) {
+                        $data[$field] = $user->name;
+                    }
+                }
+            }
+        };
+
+        if (isset($properties['attributes'])) {
+            $convertIdsToNames($properties['attributes']);
+        }
+        if (isset($properties['old'])) {
+            $convertIdsToNames($properties['old']);
+        }
+
+        $activity->properties = $properties;
+    }
+}

app/Modules/Inventory/Models/InventoryAdjustItem.php

@@ -0,0 +1,36 @@
+<?php
+
+namespace App\Modules\Inventory\Models;
+
+use Illuminate\Database\Eloquent\Factories\HasFactory;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\BelongsTo;
+
+class InventoryAdjustItem extends Model
+{
+    use HasFactory;
+
+    protected $fillable = [
+        'adjust_doc_id',
+        'product_id',
+        'batch_number',
+        'qty_before',
+        'adjust_qty', // 增減數量
+        'notes',
+    ];
+
+    protected $casts = [
+        'qty_before' => 'decimal:2',
+        'adjust_qty' => 'decimal:2',
+    ];
+
+    public function doc(): BelongsTo
+    {
+        return $this->belongsTo(InventoryAdjustDoc::class, 'adjust_doc_id');
+    }
+
+    public function product(): BelongsTo
+    {
+        return $this->belongsTo(Product::class);
+    }
+}

app/Modules/Inventory/Models/InventoryCountDoc.php

@@ -0,0 +1,141 @@
+<?php
+
+namespace App\Modules\Inventory\Models;
+
+use Illuminate\Database\Eloquent\Factories\HasFactory;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\BelongsTo;
+use Illuminate\Database\Eloquent\Relations\HasMany;
+use App\Modules\Core\Models\User;
+use Spatie\Activitylog\Traits\LogsActivity;
+use Spatie\Activitylog\LogOptions;
+
+class InventoryCountDoc extends Model
+{
+    use HasFactory;
+    use LogsActivity;
+
+    protected $fillable = [
+        'doc_no',
+        'warehouse_id',
+        'status',
+        'snapshot_date',
+        'completed_at',
+        'remarks',
+        'created_by',
+        'updated_by',
+        'completed_by',
+    ];
+
+    protected $casts = [
+        'snapshot_date' => 'datetime',
+        'completed_at' => 'datetime',
+    ];
+
+    protected static function boot()
+    {
+        parent::boot();
+
+        static::creating(function ($model) {
+            if (empty($model->doc_no)) {
+                $today = date('Ymd');
+                $prefix = 'CNT-' . $today . '-';
+                
+                // 查詢當天編號最大的單據
+                $lastDoc = static::where('doc_no', 'like', $prefix . '%')
+                    ->orderBy('doc_no', 'desc')
+                    ->first();
+
+                if ($lastDoc) {
+                    // 取得最後兩位序號並遞增
+                    $lastNumber = substr($lastDoc->doc_no, -2);
+                    $nextNumber = str_pad((int)$lastNumber + 1, 2, '0', STR_PAD_LEFT);
+                } else {
+                    $nextNumber = '01';
+                }
+
+                $model->doc_no = $prefix . $nextNumber;
+            }
+        });
+    }
+
+    public function warehouse(): BelongsTo
+    {
+        return $this->belongsTo(Warehouse::class);
+    }
+
+    public function items(): HasMany
+    {
+        return $this->hasMany(InventoryCountItem::class, 'count_doc_id');
+    }
+
+    public function createdBy(): BelongsTo
+    {
+        return $this->belongsTo(User::class, 'created_by');
+    }
+    
+    public function completedBy(): BelongsTo
+    {
+        return $this->belongsTo(User::class, 'completed_by');
+    }
+
+    public function getActivitylogOptions(): \Spatie\Activitylog\LogOptions
+    {
+        return \Spatie\Activitylog\LogOptions::defaults()
+            ->logFillable()
+            ->dontSubmitEmptyLogs();
+    }
+
+    public function tapActivity(\Spatie\Activitylog\Contracts\Activity $activity, string $eventName)
+    {
+        // 確保為陣列以進行修改
+        $properties = $activity->properties instanceof \Illuminate\Support\Collection 
+            ? $activity->properties->toArray() 
+            : $activity->properties;
+
+        $snapshot = $properties['snapshot'] ?? [];
+
+        // Snapshot key information
+        $snapshot['doc_no'] = $this->doc_no;
+        $snapshot['warehouse_name'] = $this->warehouse ? $this->warehouse->name : null;
+        $snapshot['completed_at'] = $this->completed_at ? $this->completed_at->format('Y-m-d H:i:s') : null;
+        $snapshot['status'] = $this->status;
+        $snapshot['created_by_name'] = $this->createdBy ? $this->createdBy->name : null;
+        $snapshot['completed_by_name'] = $this->completedBy ? $this->completedBy->name : null;
+
+        $properties['snapshot'] = $snapshot;
+
+        // 全域 ID 轉名稱邏輯 (用於 attributes 與 old)
+        $convertIdsToNames = function (&$data) {
+            if (empty($data) || !is_array($data)) return;
+
+            // 倉庫 ID 轉換
+            if (isset($data['warehouse_id']) && is_numeric($data['warehouse_id'])) {
+                $warehouse = \App\Modules\Inventory\Models\Warehouse::find($data['warehouse_id']);
+                if ($warehouse) {
+                    $data['warehouse_id'] = $warehouse->name;
+                }
+            }
+
+            // 使用者 ID 轉換
+            $userFields = ['created_by', 'updated_by', 'completed_by'];
+            foreach ($userFields as $field) {
+                if (isset($data[$field]) && is_numeric($data[$field])) {
+                    $user = \App\Modules\Core\Models\User::find($data[$field]);
+                    if ($user) {
+                        $data[$field] = $user->name;
+                    }
+                }
+            }
+        };
+
+        if (isset($properties['attributes'])) {
+            $convertIdsToNames($properties['attributes']);
+        }
+        if (isset($properties['old'])) {
+            $convertIdsToNames($properties['old']);
+        }
+
+        $activity->properties = $properties;
+    }
+}

app/Modules/Inventory/Models/InventoryCountItem.php

@@ -0,0 +1,38 @@
+<?php
+
+namespace App\Modules\Inventory\Models;
+
+use Illuminate\Database\Eloquent\Factories\HasFactory;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\BelongsTo;
+
+class InventoryCountItem extends Model
+{
+    use HasFactory;
+
+    protected $fillable = [
+        'count_doc_id',
+        'product_id',
+        'batch_number',
+        'system_qty',
+        'counted_qty',
+        'diff_qty',
+        'notes',
+    ];
+
+    protected $casts = [
+        'system_qty' => 'decimal:2',
+        'counted_qty' => 'decimal:2',
+        'diff_qty' => 'decimal:2',
+    ];
+
+    public function doc(): BelongsTo
+    {
+        return $this->belongsTo(InventoryCountDoc::class, 'count_doc_id');
+    }
+
+    public function product(): BelongsTo
+    {
+        return $this->belongsTo(Product::class);
+    }
+}

app/Modules/Inventory/Models/InventoryTransaction.php

@@ -10,6 +10,7 @@ class InventoryTransaction extends Model
 {
     /** @use HasFactory<\Database\Factories\InventoryTransactionFactory> */
     use HasFactory;
+    use \Spatie\Activitylog\Traits\LogsActivity;
 
     protected $fillable = [
         'inventory_id',
@@ -26,7 +27,9 @@ class InventoryTransaction extends Model
     ];
 
     protected $casts = [
-        'actual_time' => 'datetime',
+        // actual_time 不做時區轉換，保留原始字串格式（台北時間）
+        // 原因：資料庫儲存的是台北時間，但 MySQL 時區為 UTC
+        // 若使用 datetime cast，Laravel 會誤當作 UTC 再轉回台北時間，造成偏移
         'unit_cost' => 'decimal:4',
     ];
 
@@ -39,4 +42,49 @@ class InventoryTransaction extends Model
     {
         return $this->morphTo();
     }
+
+    public function getActivitylogOptions(): \Spatie\Activitylog\LogOptions
+    {
+        return \Spatie\Activitylog\LogOptions::defaults()
+            ->logAll()
+            ->dontLogIfAttributesChangedOnly(['updated_at'])
+            // 取消 logOnlyDirty，代表新增時(created)也要留紀錄
+            ->dontSubmitEmptyLogs();
+    }
+
+    public function tapActivity(\Spatie\Activitylog\Contracts\Activity $activity, string $eventName)
+    {
+        $properties = $activity->properties instanceof \Illuminate\Support\Collection 
+            ? $activity->properties->toArray() 
+            : $activity->properties;
+
+        $snapshot = $properties['snapshot'] ?? [];
+
+        // 試著取得商品與倉庫名稱來作為主要顯示依據
+        $inventory = $this->inventory;
+        if ($inventory) {
+            $snapshot['warehouse_name'] = $inventory->warehouse ? $inventory->warehouse->name : null;
+            $snapshot['product_name'] = $inventory->product ? $inventory->product->name : null;
+            $snapshot['batch_number'] = $inventory->batch_number;
+        }
+
+        // 把異動類型與數量也拉到 snapshot
+        $snapshot['type'] = $this->type;
+        $snapshot['quantity'] = $this->quantity;
+        $snapshot['reason'] = $this->reason;
+        
+        // 替換使用者名稱
+        $resolver = function (&$data) {
+            if (empty($data) || !is_array($data)) return;
+            if (isset($data['user_id']) && is_numeric($data['user_id'])) {
+                $data['user_id'] = \App\Modules\Core\Models\User::find($data['user_id'])?->name;
+            }
+        };
+
+        if (isset($properties['attributes'])) $resolver($properties['attributes']);
+        if (isset($properties['old'])) $resolver($properties['old']);
+
+        $properties['snapshot'] = $snapshot;
+        $activity->properties = $properties;
+    }
 }

app/Modules/Inventory/Models/InventoryTransferItem.php

@@ -0,0 +1,36 @@
+<?php
+
+namespace App\Modules\Inventory\Models;
+
+use Illuminate\Database\Eloquent\Factories\HasFactory;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\BelongsTo;
+
+class InventoryTransferItem extends Model
+{
+    use HasFactory;
+
+    protected $fillable = [
+        'transfer_order_id',
+        'product_id',
+        'batch_number',
+        'quantity',
+        'position',
+        'snapshot_quantity',
+        'notes',
+    ];
+
+    protected $casts = [
+        'quantity' => 'decimal:2',
+    ];
+
+    public function order(): BelongsTo
+    {
+        return $this->belongsTo(InventoryTransferOrder::class, 'transfer_order_id');
+    }
+
+    public function product(): BelongsTo
+    {
+        return $this->belongsTo(Product::class);
+    }
+}

app/Modules/Inventory/Models/InventoryTransferOrder.php

@@ -0,0 +1,203 @@
+<?php
+namespace App\Modules\Inventory\Models;
+
+use Illuminate\Database\Eloquent\Factories\HasFactory;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\BelongsTo;
+use Illuminate\Database\Eloquent\Relations\HasMany;
+use Spatie\Activitylog\Traits\LogsActivity;
+use Spatie\Activitylog\LogOptions;
+use App\Modules\Core\Models\User;
+
+class InventoryTransferOrder extends Model
+{
+    use HasFactory, LogsActivity;
+
+    public function getActivitylogOptions(): LogOptions
+    {
+        return LogOptions::defaults()
+            ->logFillable()
+            ->dontSubmitEmptyLogs();
+    }
+
+    /**
+     * @var array 暫存的活動紀錄屬性 (不會存入資料庫)
+     */
+    public $activityProperties = [];
+
+    /**
+     * 自定義日誌屬性名稱解析
+     */
+    public function tapActivity(\Spatie\Activitylog\Models\Activity $activity, string $eventName)
+    {
+        $properties = $activity->properties->toArray();
+
+        // 處置日誌事件說明
+        if ($eventName === 'created') {
+            $activity->description = 'created';
+        } elseif ($eventName === 'updated') {
+            if (isset($properties['attributes']['status']) && $properties['attributes']['status'] === 'completed') {
+                $activity->description = 'posted';
+                $eventName = 'posted'; 
+            } else {
+                $activity->description = 'updated';
+            }
+        }
+
+        // 處理 ID 轉名稱 (核心：支援 attributes 與 old 的自動轉換)
+        $idToNameFields = [
+            'from_warehouse_id' => 'fromWarehouse',
+            'to_warehouse_id' => 'toWarehouse',
+            'transit_warehouse_id' => 'transitWarehouse',
+            'created_by' => 'createdBy',
+            'posted_by' => 'postedBy',
+            'dispatched_by' => 'dispatchedBy',
+            'received_by' => 'receivedBy',
+        ];
+
+        foreach (['attributes', 'old'] as $part) {
+            if (isset($properties[$part])) {
+                foreach ($idToNameFields as $idField => $relation) {
+                    if (isset($properties[$part][$idField])) {
+                        $id = $properties[$part][$idField];
+                        if (!$id) continue;
+                        
+                        $nameField = str_replace('_id', '_name', $idField);
+                        $name = null;
+                        try {
+                            if ($this->relationLoaded($relation) && $this->$relation && $this->$relation->id == $id) {
+                                $name = $this->$relation->name;
+                            } else {
+                                $relatedModel = $this->$relation()->getRelated();
+                                $model = $relatedModel->find($id);
+                                $name = $model ? ($model->name ?? $model->display_name ?? "ID: $id") : "ID: $id";
+                            }
+                        } catch (\Exception $e) {
+                            $name = "ID: $id";
+                        }
+                        $properties[$part][$nameField] = $name;
+                    }
+                }
+            }
+        }
+
+        // 基本單據資訊快照
+        if (in_array($eventName, ['created', 'updated', 'posted', 'deleted'])) {
+            $properties['snapshot'] = [
+                'doc_no' => $this->doc_no,
+                'from_warehouse_name' => $this->fromWarehouse?->name,
+                'to_warehouse_name' => $this->toWarehouse?->name,
+                'status' => $this->status,
+            ];
+        }
+
+        // 移除輔助欄位與雜訊
+        if (isset($properties['attributes'])) {
+            unset($properties['attributes']['activityProperties']);
+            unset($properties['attributes']['updated_at']);
+        }
+        if (isset($properties['old'])) {
+            unset($properties['old']['updated_at']);
+        }
+
+        // 合併暫存屬性 (重要：例如 items_diff)
+        if (!empty($this->activityProperties)) {
+            $properties = array_merge($properties, $this->activityProperties);
+        }
+
+        $activity->properties = collect($properties);
+    }
+
+    protected $fillable = [
+        'doc_no',
+        'from_warehouse_id',
+        'to_warehouse_id',
+        'transit_warehouse_id',
+        'status',
+        'remarks',
+        'posted_at',
+        'created_by',
+        'updated_by',
+        'posted_by',
+        'dispatched_at',
+        'dispatched_by',
+        'received_at',
+        'received_by',
+    ];
+
+    protected $casts = [
+        'posted_at' => 'datetime',
+        'dispatched_at' => 'datetime',
+        'received_at' => 'datetime',
+    ];
+
+    protected static function boot()
+    {
+        parent::boot();
+
+        static::creating(function ($model) {
+            if (empty($model->doc_no)) {
+                $today = date('Ymd');
+                $prefix = 'TRF-' . $today . '-';
+
+                $lastDoc = static::where('doc_no', 'like', $prefix . '%')
+                    ->orderBy('doc_no', 'desc')
+                    ->first();
+
+                if ($lastDoc) {
+                    $lastNumber = substr($lastDoc->doc_no, -2);
+                    $nextNumber = str_pad((int)$lastNumber + 1, 2, '0', STR_PAD_LEFT);
+                } else {
+                    $nextNumber = '01';
+                }
+
+                $model->doc_no = $prefix . $nextNumber;
+            }
+        });
+    }
+
+    public function fromWarehouse(): BelongsTo
+    {
+        return $this->belongsTo(Warehouse::class, 'from_warehouse_id');
+    }
+
+    public function toWarehouse(): BelongsTo
+    {
+        return $this->belongsTo(Warehouse::class, 'to_warehouse_id');
+    }
+
+    public function items(): HasMany
+    {
+        return $this->hasMany(InventoryTransferItem::class, 'transfer_order_id');
+    }
+
+    public function createdBy(): BelongsTo
+    {
+        return $this->belongsTo(User::class, 'created_by');
+    }
+
+    public function storeRequisition(): \Illuminate\Database\Eloquent\Relations\HasOne
+    {
+        return $this->hasOne(StoreRequisition::class, 'transfer_order_id');
+    }
+
+    public function postedBy(): BelongsTo
+    {
+        return $this->belongsTo(User::class, 'posted_by');
+    }
+
+    public function transitWarehouse(): BelongsTo
+    {
+        return $this->belongsTo(Warehouse::class, 'transit_warehouse_id');
+    }
+
+    public function dispatchedBy(): BelongsTo
+    {
+        return $this->belongsTo(User::class, 'dispatched_by');
+    }
+
+    public function receivedBy(): BelongsTo
+    {
+        return $this->belongsTo(User::class, 'received_by');
+    }
+}

app/Modules/Inventory/Models/Product.php

@@ -17,7 +17,9 @@ class Product extends Model
 
     protected $fillable = [
         'code',
+        'barcode',
         'name',
+        'external_pos_id',
         'category_id',
         'brand',
         'specification',
@@ -25,10 +27,17 @@ class Product extends Model
         'large_unit_id',
         'conversion_rate',
         'purchase_unit_id',
+        'location',
+        'cost_price',
+        'price',
+        'member_price',
+        'wholesale_price',
+        'is_active',
     ];
 
     protected $casts = [
         'conversion_rate' => 'decimal:4',
+        'is_active' => 'boolean',
     ];
 
     /**
@@ -76,30 +85,50 @@ class Product extends Model
 
     public function tapActivity(\Spatie\Activitylog\Contracts\Activity $activity, string $eventName)
     {
-        $properties = $activity->properties;
-        $attributes = $properties['attributes'] ?? [];
+        // 核心：轉換為陣列以避免 Indirect modification error
+        $properties = $activity->properties instanceof \Illuminate\Support\Collection 
+            ? $activity->properties->toArray() 
+            : $activity->properties;
+
         $snapshot = $properties['snapshot'] ?? [];
         
-        // 處理分類名稱快照
-        if (isset($attributes['category_id'])) {
-            $category = Category::find($attributes['category_id']);
-            $snapshot['category_name'] = $category ? $category->name : null;
-        }
-        
-        // 處理單位名稱快照
-        $unitFields = ['base_unit_id', 'large_unit_id', 'purchase_unit_id'];
-        foreach ($unitFields as $field) {
-            if (isset($attributes[$field])) {
-                $unit = Unit::find($attributes[$field]);
-                $nameKey = str_replace('_id', '_name', $field);
-                $snapshot[$nameKey] = $unit ? $unit->name : null;
-            }
-        }
-        
         // 始終對自身名稱進行快照以便於上下文顯示（這樣日誌總是顯示 "可樂"）
         $snapshot['name'] = $this->name;
 
-        $properties['attributes'] = $attributes;
+        $properties['snapshot'] = $snapshot;
+
+        // 全域 ID 轉名稱邏輯
+        $resolver = function (&$data) use (&$snapshot) {
+            if (empty($data) || !is_array($data)) return;
+            
+            // 處理分類名稱
+            if (isset($data['category_id']) && is_numeric($data['category_id'])) {
+                $categoryName = Category::find($data['category_id'])?->name;
+                $data['category_id'] = $categoryName;
+                if (!isset($snapshot['category_name']) && $categoryName) {
+                    $snapshot['category_name'] = $categoryName;
+                }
+            }
+            
+            // 處理單位名稱
+            $unitFields = ['base_unit_id', 'large_unit_id', 'purchase_unit_id'];
+            foreach ($unitFields as $field) {
+                if (isset($data[$field]) && is_numeric($data[$field])) {
+                    $unitName = Unit::find($data[$field])?->name;
+                    $data[$field] = $unitName;
+                    
+                    $nameKey = str_replace('_id', '_name', $field);
+                    if (!isset($snapshot[$nameKey]) && $unitName) {
+                        $snapshot[$nameKey] = $unitName;
+                    }
+                }
+            }
+        };
+
+        if (isset($properties['attributes'])) $resolver($properties['attributes']);
+        if (isset($properties['old'])) $resolver($properties['old']);
+
+        // 因為 resolver 內部可能更新了 snapshot，所以再覆寫一次
         $properties['snapshot'] = $snapshot;
         $activity->properties = $properties;
     }