[STYLE] 調整 IoT API 回應格式與程式碼風格

1. 移除 B005, B012, B014, B017 回應中的 message 欄位，以相容機台端的解析邏輯。
2. 統一 MachineController 內的型別轉換格式與程式碼縮排。
3. 同步更新 api-docs.php 文件範例，移除多餘的 message 欄位。

app/Http/Controllers/Api/V1/App/MachineController.php

@@ -180,7 +180,6 @@ class MachineController extends Controller
         return response()->json([
             'success' => true,
             'code' => 200,
-            'message' => 'OK',
             'data' => $slots->map(function ($slot) {
                 return [
                     'tid' => $slot->slot_no,
@@ -307,7 +306,6 @@ class MachineController extends Controller
         return response()->json([
             'success' => true,
             'code' => 200,
-            'message' => 'OK',
             'data' => $advertisements->values()
         ]);
     }
@@ -366,10 +364,10 @@ class MachineController extends Controller
 
         $mappedSlots = array_map(function ($item) {
             return [
-                'slot_no' => isset($item['tid']) ? (string)$item['tid'] : null,
+                'slot_no' => isset($item['tid']) ? (string) $item['tid'] : null,
                 'product_id' => $item['t060v00'] ?? null,
-                'stock' => isset($item['num']) ? (int)$item['num'] : 0,
-                'type' => isset($item['type']) ? (int)$item['type'] : null,
+                'stock' => isset($item['num']) ? (int) $item['num'] : 0,
+                'type' => isset($item['type']) ? (int) $item['type'] : null,
             ];
         }, $legacyData);
 
@@ -423,7 +421,6 @@ class MachineController extends Controller
         return response()->json([
             'success' => true,
             'code' => 200,
-            'message' => 'OK',
             'data' => $products
         ]);
     }
@@ -487,7 +484,6 @@ class MachineController extends Controller
         return response()->json([
             'success' => true,
             'code' => 200,
-            'message' => 'OK',
             'data' => $data
         ]);
     }
@@ -518,19 +514,22 @@ class MachineController extends Controller
         $pickupCode = PickupCode::where('machine_id', $machine->id)
             ->where('code', $code)
             ->where('status', 'active')
-            ->where(function($q) { $q->whereNull('expires_at')->orWhere('expires_at', '>', now()); })
+            ->where(function ($q) {
+                $q->whereNull('expires_at')->orWhere('expires_at', '>', now());
+            })
             ->first();
 
         if (!$pickupCode) {
             $fails = Cache::increment("pickup_fails:{$machine->id}");
-            if ($fails === 1) Cache::put("pickup_fails:{$machine->id}", 1, 600);
+            if ($fails === 1)
+                Cache::put("pickup_fails:{$machine->id}", 1, 600);
             if ($fails >= 5) {
                 Cache::put($lockoutKey, true, 60);
                 Cache::forget("pickup_fails:{$machine->id}");
             }
-            
+
             ProcessStateLog::dispatch($machine->id, $machine->company_id, "[PickupCode] Verification failed: :code", 'info', ['code' => $code]);
-            
+
             return response()->json(['success' => false, 'message' => 'Invalid code', 'code' => 404, 'remaining_attempts' => 5 - $fails], 404);
         }
 
@@ -544,7 +543,7 @@ class MachineController extends Controller
             'action' => 'verify_success',
             'remark' => "log.pickup.verify_success",
             'raw_data' => [
-                'machine_sn' => $machine->serial_no, 
+                'machine_sn' => $machine->serial_no,
                 'code' => $pickupCode->code,
                 'slot' => $pickupCode->slot_no
             ]
@@ -573,24 +572,28 @@ class MachineController extends Controller
     {
         $machine = $request->get('machine');
         $lockoutKey = "passcode_lockout:{$machine->id}";
-        
+
         if (Cache::has($lockoutKey)) {
             return response()->json(['success' => false, 'message' => 'Locked', 'code' => 429], 429);
         }
 
         $validator = Validator::make($request->all(), ['code' => 'required|string|size:8']);
-        if ($validator->fails()) return response()->json(['success' => false, 'code' => 400], 400);
+        if ($validator->fails())
+            return response()->json(['success' => false, 'code' => 400], 400);
 
         $code = $request->input('code');
         $passCode = PassCode::where('machine_id', $machine->id)
             ->where('code', $code)
             ->where('status', 'active')
-            ->where(function($q) { $q->whereNull('expires_at')->orWhere('expires_at', '>', now()); })
+            ->where(function ($q) {
+                $q->whereNull('expires_at')->orWhere('expires_at', '>', now());
+            })
             ->first();
 
         if (!$passCode) {
             $fails = Cache::increment("passcode_fails:{$machine->id}");
-            if ($fails >= 5) Cache::put($lockoutKey, true, 60);
+            if ($fails >= 5)
+                Cache::put($lockoutKey, true, 60);
             return response()->json(['success' => false, 'code' => 404], 404);
         }
 
@@ -622,7 +625,7 @@ class MachineController extends Controller
     public function verifyStaffCard(Request $request)
     {
         $machine = $request->get('machine');
-        
+
         $validator = Validator::make($request->all(), [
             'code' => 'required|string', // 卡片 UID
         ]);

config/api-docs.php

@@ -164,7 +164,6 @@ return [
                     'response' => [
                         'success' => true,
                         'code' => 200,
-                        'message' => 'OK',
                         'data' => [
                             [
                                 't070v01' => '測試機台廣告',