優化採購單與進貨單操作紀錄：新增品項明細、ID 轉名稱解析、前端多數量 key 通用顯示

- 重構 PurchaseOrder@tapActivity：支援 vendor_id/warehouse_id/user_id 自動解析為名稱
- 修改 PurchaseOrderController@store：改用 saveQuietly + 手動日誌，建立時紀錄品項明細
- 修正 PurchaseOrderController update/destroy snapshot 跨模組取值為 null 的問題
- 修改 GoodsReceiptService@store：改用 saveQuietly + 手動日誌，建立時紀錄品項明細
- 修改 ActivityDetailDialog.tsx：支援 quantity/quantity_received/requested_qty 多 key 通用渲染
- 新增項目顯示金額與備註，更新項目增加金額與備註變更對比

app/Modules/Procurement/Models/PurchaseOrder.php

@@ -45,19 +45,52 @@ class PurchaseOrder extends Model
 
     public function tapActivity(\Spatie\Activitylog\Contracts\Activity $activity, string $eventName)
     {
-        $snapshot = $activity->properties['snapshot'] ?? [];
-        
-        $snapshot['po_number'] = $this->code;
-        
-        if ($this->vendor) {
-            $snapshot['vendor_name'] = $this->vendor->name;
-        }
-        // Warehouse relation removed in Strict Mode. Snapshot should be set via manual hydration if needed, 
-        // or during the procurement process where warehouse_id is known.
+        // 🚩 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;
 
-        $activity->properties = $activity->properties->merge([
-            'snapshot' => $snapshot
-        ]);
+        // 1. Snapshot 快照
+        $snapshot = $properties['snapshot'] ?? [];
+        $snapshot['po_number'] = $this->code;
+        $snapshot['vendor_name'] = $this->vendor?->name;
+        // 倉庫名稱需透過服務取得（跨模組），若已在 snapshot 中則保留
+        if (!isset($snapshot['warehouse_name']) && $this->warehouse_id) {
+            $warehouse = app(\App\Modules\Inventory\Contracts\InventoryServiceInterface::class)->getWarehouse($this->warehouse_id);
+            $snapshot['warehouse_name'] = $warehouse?->name ?? null;
+        }
+        $properties['snapshot'] = $snapshot;
+
+        // 2. 名稱解析：自動將 attributes 與 old 中的 ID 換成人名/物名
+        $resolver = function (&$data) {
+            if (empty($data) || !is_array($data)) return;
+
+            // 使用者 ID 轉換
+            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];
+                }
+            }
+            // 廠商 ID 轉換
+            if (isset($data['vendor_id']) && is_numeric($data['vendor_id'])) {
+                $data['vendor_id'] = Vendor::find($data['vendor_id'])?->name ?? $data['vendor_id'];
+            }
+            // 倉庫 ID 轉換（跨模組，透過服務）
+            if (isset($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;
     }
 
     public function vendor(): \Illuminate\Database\Eloquent\Relations\BelongsTo