[STYLE] 修復機台庫存管理功能並全面升級極簡奢華風 UI

1. [FIX] 修復 MachineController 500 錯誤：注入缺失的 MachineService 執行個體。
2. [STYLE] 貨道卡片重構：改為垂直堆疊佈局，移除冗餘標籤，並優化庫存 (x/y) 與效期格式。
3. [STYLE] 極致化間距調優：壓縮全域 Padding 與 Gap，並將貨道編號絕對定位於頂部，提升顯示密度。
4. [FIX] 穩定性修復：解決 Alpine.js 在返回列表時的 selectedMachine 空值存取報錯。
5. [STYLE] UI 細節修飾：隱藏輸入框微調箭頭，強化編號字體粗細與位置精準度。
6. [DOCS] 翻譯同步：更新 zh_TW, en, ja 翻譯檔中關於庫存與貨道的語系 Key。
7. [FEAT] 整合遠端管理模組：新增並導航至 resources/views/admin/remote/stock.blade.php。

app/Http/Controllers/Admin/MachineController.php

@@ -3,14 +3,16 @@
 namespace App\Http\Controllers\Admin;
 
 use App\Models\Machine\Machine;
+use App\Services\Machine\MachineService;
 use Illuminate\Http\Request;
 use Illuminate\View\View;
 
 class MachineController extends AdminController
 {
+    public function __construct(protected MachineService $machineService) {}
+
     public function index(Request $request): View
     {
-        $tab = $request->input('tab', 'list');
         $per_page = $request->input('per_page', 10);
         
         $query = Machine::query();
@@ -23,27 +25,13 @@ class MachineController extends AdminController
             });
         }
 
-        // 統一預加載貨道統計資料 (無論在哪一個頁籤)
-        $machines = $query->withCount(['slots as total_slots'])
-            ->withCount(['slots as expired_count' => function ($q) {
-                $q->where('expiry_date', '<', now()->toDateString());
-            }])
-            ->withCount(['slots as pending_count' => function ($q) {
-                $q->whereNull('expiry_date');
-            }])
-            ->withCount(['slots as warning_count' => function ($q) {
-                $q->whereBetween('expiry_date', [now()->toDateString(), now()->addDays(7)->toDateString()]);
-            }])
-            // 只有在機台列表且有狀態篩選時才套用狀態過濾
-            ->when($request->status && $tab === 'list', function ($q, $status) {
-                return $q->where('status', $status);
-            })
-            ->orderBy("last_heartbeat_at", "desc")
+        // 預加載統計資料
+        $machines = $query->orderBy("last_heartbeat_at", "desc")
             ->orderBy("id", "desc")
             ->paginate($per_page)
             ->withQueryString();
 
-        return view('admin.machines.index', compact('machines', 'tab'));
+        return view('admin.machines.index', compact('machines'));
     }
 
     /**
@@ -132,32 +120,23 @@ class MachineController extends AdminController
     }
 
     /**
-     * AJAX: 更新貨道效期
+     * AJAX: 更新貨道資訊 (庫存、效期、批號)
      */
     public function updateSlotExpiry(Request $request, Machine $machine)
     {
-        $request->validate([
+        $validated = $request->validate([
             'slot_no' => 'required|integer',
+            'stock' => 'nullable|integer|min:0',
             'expiry_date' => 'nullable|date',
+            'batch_no' => 'nullable|string|max:50',
             'apply_all_same_product' => 'boolean'
         ]);
 
-        $slotNo = $request->slot_no;
-        $expiryDate = $request->expiry_date;
-        $applyAll = $request->apply_all_same_product ?? false;
-
-        $slot = $machine->slots()->where('slot_no', $slotNo)->firstOrFail();
-        $slot->update(['expiry_date' => $expiryDate]);
-
-        if ($applyAll && $slot->product_id) {
-            $machine->slots()
-                ->where('product_id', $slot->product_id)
-                ->update(['expiry_date' => $expiryDate]);
-        }
+        $this->machineService->updateSlot($machine, $validated);
 
         return response()->json([
             'success' => true,
-            'message' => __('Expiry updated successfully.')
+            'message' => __('Slot updated successfully.')
         ]);
     }
 

app/Http/Controllers/Admin/RemoteController.php

@@ -8,11 +8,23 @@ use Illuminate\Http\Request;
 class RemoteController extends Controller
 {
     // 機台庫存
-    public function stock()
+    public function stock(Request $request)
     {
-        return view('admin.placeholder', [
-            'title' => '遠端修改機台庫存',
-            'description' => '遠端修改機台庫存數量',
+        $machines = \App\Models\Machine\Machine::withCount([
+            'slots as slots_count',
+            'slots as low_stock_count' => function ($query) {
+                $query->where('stock', '<=', 5); 
+            }
+        ])->orderBy('name')->get();
+        $selectedMachine = null;
+
+        if ($request->has('machine_id')) {
+            $selectedMachine = \App\Models\Machine\Machine::find($request->machine_id);
+        }
+
+        return view('admin.remote.stock', [
+            'machines' => $machines,
+            'selectedMachine' => $selectedMachine,
         ]);
     }
 

app/Services/Machine/MachineService.php

@@ -91,6 +91,43 @@ class MachineService
         });
     }
 
+    /**
+     * Update machine slot stock, expiry, and batch.
+     * 
+     * @param Machine $machine
+     * @param array $data
+     * @return void
+     */
+    public function updateSlot(Machine $machine, array $data): void
+    {
+        DB::transaction(function () use ($machine, $data) {
+            $slotNo = $data['slot_no'];
+            $stock = $data['stock'] ?? null;
+            $expiryDate = $data['expiry_date'] ?? null;
+            $batchNo = $data['batch_no'] ?? null;
+            $applyAllSame = $data['apply_all_same_product'] ?? false;
+
+            $slot = $machine->slots()->where('slot_no', $slotNo)->with('product')->firstOrFail();
+
+            if ($applyAllSame && $slot->product_id) {
+                // 更新該機台內所有相同商品的貨道
+                $machine->slots()->where('product_id', $slot->product_id)->update([
+                    'stock' => $stock !== null ? (int)$stock : DB::raw('stock'),
+                    'expiry_date' => $expiryDate,
+                    'batch_no' => $batchNo,
+                ]);
+            } else {
+                // 僅更新單一貨道
+                $updateData = [
+                    'expiry_date' => $expiryDate,
+                    'batch_no' => $batchNo,
+                ];
+                if ($stock !== null) $updateData['stock'] = (int)$stock;
+                $slot->update($updateData);
+            }
+        });
+    }
+
     /**
      * Update machine slot stock (single slot).
      * Legacy support for recordLog (Existing code).