chore: 完善模組化架構遷移與修復前端顯示錯誤

- 修正所有模組 Controller 的 Model 引用路徑 (App\Modules\...)
- 更新 ProductionOrder 與 ProductionOrderItem 模型結構以符合新版邏輯
- 修復 resources/js/utils/format.ts 在處理空值時導致 toLocaleString 崩潰的問題
- 清除全域路徑與 Controller 遷移殘留檔案

config/auth.php

@@ -62,7 +62,7 @@ return [
     'providers' => [
         'users' => [
             'driver' => 'eloquent',
-            'model' => env('AUTH_MODEL', App\Models\User::class),
+            'model' => env('AUTH_MODEL', App\Modules\Core\Models\User::class),
         ],
 
         // 'users' => [

config/permission.php

@@ -24,7 +24,7 @@ return [
          * `Spatie\Permission\Contracts\Role` contract.
          */
 
-        'role' => App\Models\Role::class,
+        'role' => App\Modules\Core\Models\Role::class,
 
     ],
 

config/tenancy.php

@@ -3,7 +3,7 @@
 declare(strict_types=1);
 
 use Stancl\Tenancy\Database\Models\Domain;
-use App\Models\Tenant;
+use App\Modules\Core\Models\Tenant;
 
 return [
     'tenant_model' => Tenant::class,