refactor：拆分 API 路由与请求校验，统一 final 类和代码风格

app/Http/Controllers/Api/V1/Admin/Auth/LoginController.php

@@ -2,38 +2,28 @@
 
 namespace App\Http\Controllers\Api\V1\Admin\Auth;
 
-use App\Lottery\ErrorCode;
 use App\Models\AdminUser;
-use App\Services\AdminCaptchaService;
+use App\Lottery\ErrorCode;
+use Illuminate\Support\Str;
 use App\Support\ApiResponse;
 use Illuminate\Http\JsonResponse;
-use Illuminate\Http\Request;
+use App\Http\Controllers\Controller;
 use Illuminate\Support\Facades\Hash;
-use Illuminate\Support\Str;
+use App\Services\AdminCaptchaService;
+use App\Http\Requests\Admin\AdminLoginRequest;
 
 /**
  * POST /api/v1/admin/auth/login
  *
  * Body: account（登录账号，与 username 对应，ASCII 仅存小写比对）、password、captcha_key、captcha_code。
  */
-final class LoginController
+final class LoginController extends Controller
 {
-    public function __invoke(Request $request, AdminCaptchaService $captcha): JsonResponse
+    public function __invoke(AdminLoginRequest $request, AdminCaptchaService $captcha): JsonResponse
     {
         $locale = $request->lotteryLocale();
 
-        /** @var array{account:string,password:string,captcha_key:string,captcha_code:string} $data */
-        $data = validator($request->all(), [
-            'account' => ['required', 'string', 'min:2', 'max:64', 'regex:/^[a-zA-Z0-9._-]+$/u'],
-            'password' => ['required', 'string', 'max:256'],
-            'captcha_key' => ['required', 'string', 'uuid'],
-            'captcha_code' => ['required', 'string', 'max:32'],
-        ], [], [
-            'account' => 'account',
-            'password' => 'password',
-            'captcha_key' => 'captcha_key',
-            'captcha_code' => 'captcha_code',
-        ])->validate();
+        $data = $request->validated();
 
         if (! $captcha->verify($data['captcha_key'], $data['captcha_code'])) {
             return ApiResponse::error(