[FEAT] 遠端指令中心優化與規格同步

1. 實作遠端指令去重機制 (Supersede)：避免重複下達相同待執行指令。
2. 修正遠端指令發送後的 Toast 提示邏輯，確保頁面跳轉後正確顯示回饋。
3. 增加 RemoteCommand 操作者 (user_id) 紀錄與狀態列舉擴充 (superseded)。
4. 修復機台列表「最後頁面」欄位對照錯誤，同步更新 Machine Model 與 API 規格。
5. 優化遠端指令中心 UI：放大卡片字體、調整側面欄間距，符合極簡奢華風規範。
6. 更新 API 技術規格書 (SKILL.md) 與 config/api-docs.php，補全所有機台代碼 (66-611) 與指令。
7. 補全繁體中文、英文、日文多語系翻譯檔案。

app/Http/Controllers/Admin/RemoteController.php

@@ -15,18 +15,32 @@ class RemoteController extends Controller
      */
     public function index(Request $request)
     {
-        $machines = Machine::withCount(['slots'])->orderBy('name')->get();
+        $machines = Machine::withCount(['slots'])->orderBy('last_heartbeat_at', 'desc')->orderBy('id', 'desc')->get();
         $selectedMachine = null;
+        $history = RemoteCommand::where('command_type', '!=', 'reload_stock')->with(['machine', 'user'])->latest()->limit(50)->get();
 
         if ($request->has('machine_id')) {
             $selectedMachine = Machine::with(['slots.product', 'commands' => function($query) {
-                $query->latest()->limit(10);
+                $query->where('command_type', '!=', 'reload_stock')
+                      ->latest()
+                      ->limit(10);
             }])->find($request->machine_id);
         }
 
+        if ($request->ajax()) {
+            return response()->json([
+                'success' => true,
+                'machine' => $selectedMachine,
+                'commands' => $selectedMachine ? $selectedMachine->commands : []
+            ]);
+        }
+
         return view('admin.remote.index', [
             'machines' => $machines,
             'selectedMachine' => $selectedMachine,
+            'history' => $history,
+            'title' => __('Remote Command Center'),
+            'subtitle' => __('Execute maintenance and operational commands remotely')
         ]);
     }
 
@@ -50,15 +64,35 @@ class RemoteController extends Controller
             $payload['slot_no'] = $validated['slot_no'];
         }
 
+        // 指令去重：將同機台、同類型的 pending 指令標記為「已取代」
+        RemoteCommand::where('machine_id', $validated['machine_id'])
+            ->where('command_type', $validated['command_type'])
+            ->where('status', 'pending')
+            ->update([
+                'status' => 'superseded',
+                'note' => __('Superseded by new command'),
+                'executed_at' => now(),
+            ]);
+
         RemoteCommand::create([
             'machine_id' => $validated['machine_id'],
+            'user_id' => auth()->id(),
             'command_type' => $validated['command_type'],
             'payload' => $payload,
             'status' => 'pending',
             'note' => $validated['note'] ?? null,
         ]);
 
-        return redirect()->back()->with('success', __('Command has been queued successfully.'));
+        session()->flash('success', __('Command has been queued successfully.'));
+
+        if ($request->expectsJson()) {
+            return response()->json([
+                'success' => true,
+                'message' => __('Command has been queued successfully.')
+            ]);
+        }
+
+        return redirect()->back();
     }
 
     /**
@@ -70,17 +104,31 @@ class RemoteController extends Controller
             'slots as slots_count',
             'slots as low_stock_count' => function ($query) {
                 $query->where('stock', '<=', 5); 
+            },
+            'slots as expiring_soon_count' => function ($query) {
+                $query->whereNotNull('expiry_date')
+                      ->where('expiry_date', '<=', now()->addDays(7))
+                      ->where('expiry_date', '>=', now()->startOfDay());
             }
-        ])->orderBy('name')->get();
+        ])->orderBy('last_heartbeat_at', 'desc')->orderBy('id', 'desc')->get();
         
+        $history = RemoteCommand::where('command_type', 'reload_stock')->with(['machine', 'user'])->latest()->limit(50)->get();
+
         $selectedMachine = null;
         if ($request->has('machine_id')) {
-            $selectedMachine = Machine::with('slots.product')->find($request->machine_id);
+            $selectedMachine = Machine::with(['slots.product', 'commands' => function($query) {
+                $query->where('command_type', 'reload_stock')
+                      ->latest()
+                      ->limit(50);
+            }])->find($request->machine_id);
         }
 
         return view('admin.remote.stock', [
             'machines' => $machines,
             'selectedMachine' => $selectedMachine,
+            'history' => $history,
+            'title' => __('Stock & Expiry Management'),
+            'subtitle' => __('Real-time monitoring and adjustment of cargo lane inventory and expiration dates')
         ]);
     }
 }