[FEAT] 重構機台日誌 UI 與增加多語系支援，並整合 IoT API 核心架構

- 機台日誌：對齊 Luxury UI 規範，實作整合式佈局與分頁組件。
- 多語系：完成機台日誌繁、英、日三語系翻譯與動態處理。
- UI 規範：更新 SKILL.md 定義「標準列表 Bible」。
- 後端：完善 TenantScoped 隔離邏輯，修復儀表板死循環與 User Model 缺失。
- IoT：擴展機台、會員 Model 並建立交易、商品、狀態等核心表結構。
- 基礎設施：設置台北時區與 Docker 環境變數同步。

app/Services/Machine/MachineService.php

@@ -4,42 +4,69 @@ namespace App\Services\Machine;
 
 use App\Models\Machine\Machine;
 use App\Models\Machine\MachineLog;
-use Illuminate\Support\Facades\Log;
+use Illuminate\Support\Facades\DB;
+use Carbon\Carbon;
 
 class MachineService
 {
     /**
-     * 處理機台日誌寫入與狀態更新
+     * Update machine heartbeat and status.
+     * 
+     * @param string $serialNo
+     * @param array $data
+     * @return Machine
+     */
+    public function updateHeartbeat(string $serialNo, array $data): Machine
+    {
+        return DB::transaction(function () use ($serialNo, $data) {
+            $machine = Machine::where('serial_no', $serialNo)->firstOrFail();
+
+            $updateData = [
+                'status' => 'online',
+                'temperature' => $data['temperature'] ?? $machine->temperature,
+                'current_page' => $data['current_page'] ?? $machine->current_page,
+                'door_status' => $data['door_status'] ?? $machine->door_status,
+                'firmware_version' => $data['firmware_version'] ?? $machine->firmware_version,
+                'last_heartbeat_at' => now(),
+            ];
+
+            $machine->update($updateData);
+
+            // Record log if provided
+            if (!empty($data['log'])) {
+                $machine->logs()->create([
+                    'level' => $data['log_level'] ?? 'info',
+                    'message' => $data['log'],
+                    'payload' => $data['log_payload'] ?? null,
+                ]);
+            }
+
+            return $machine;
+        });
+    }
+
+    /**
+     * Update machine slot stock.
+     */
+    public function updateSlotStock(Machine $machine, int $slotNo, int $stock): void
+    {
+        $machine->slots()->where('slot_no', $slotNo)->update([
+            'stock' => $stock,
+            'last_restocked_at' => now(),
+        ]);
+    }
+
+    /**
+     * Legacy support for recordLog (Existing code).
      */
     public function recordLog(int $machineId, array $data): MachineLog
     {
         $machine = Machine::findOrFail($machineId);
 
-        // 建立日誌紀錄
-        $log = $machine->logs()->create([
+        return $machine->logs()->create([
             'level' => $data['level'] ?? 'info',
             'message' => $data['message'],
-            'context' => $data['context'] ?? null,
+            'payload' => $data['context'] ?? null,
         ]);
-
-        // 同步更新機台最後活耀時間與狀態
-        $machine->update([
-            'last_heartbeat_at' => now(),
-            'status' => $this->resolveStatus($data),
-        ]);
-
-        return $log;
-    }
-
-    /**
-     * 根據日誌內容判斷機台是否應標記成錯誤
-     */
-    protected function resolveStatus(array $data): string
-    {
-        if (isset($data['level']) && $data['level'] === 'error') {
-            return 'error';
-        }
-
-        return 'online';
     }
 }