refactor: 调整 server 目录结构

backend/internal/service/service.go

@@ -1,33 +0,0 @@
-package service
-
-// Services 服务集合容器
-type Services struct {
-	Auth          *AuthService
-	User          *UserService
-	ApiKey        *ApiKeyService
-	Group         *GroupService
-	Account       *AccountService
-	Proxy         *ProxyService
-	Redeem        *RedeemService
-	Usage         *UsageService
-	Pricing       *PricingService
-	Billing       *BillingService
-	BillingCache  *BillingCacheService
-	Admin         AdminService
-	Gateway       *GatewayService
-	OpenAIGateway *OpenAIGatewayService
-	OAuth         *OAuthService
-	OpenAIOAuth   *OpenAIOAuthService
-	RateLimit     *RateLimitService
-	AccountUsage  *AccountUsageService
-	AccountTest   *AccountTestService
-	Setting       *SettingService
-	Email         *EmailService
-	EmailQueue    *EmailQueueService
-	Turnstile     *TurnstileService
-	Subscription  *SubscriptionService
-	Concurrency   *ConcurrencyService
-	Identity      *IdentityService
-	Update        *UpdateService
-	TokenRefresh  *TokenRefreshService
-}

backend/internal/service/user_service.go

@@ -60,6 +60,15 @@ func NewUserService(userRepo UserRepository) *UserService {
 	}
 }
 
+// GetFirstAdmin 获取首个管理员用户（用于 Admin API Key 认证）
+func (s *UserService) GetFirstAdmin(ctx context.Context) (*model.User, error) {
+	admin, err := s.userRepo.GetFirstAdmin(ctx)
+	if err != nil {
+		return nil, fmt.Errorf("get first admin: %w", err)
+	}
+	return admin, nil
+}
+
 // GetProfile 获取用户资料
 func (s *UserService) GetProfile(ctx context.Context, userID int64) (*model.User, error) {
 	user, err := s.userRepo.GetByID(ctx, userID)

backend/internal/service/wire.go

@@ -76,7 +76,4 @@ var ProviderSet = wire.NewSet(
 	NewCRSSyncService,
 	ProvideUpdateService,
 	ProvideTokenRefreshService,
-
-	// Provide the Services container struct
-	wire.Struct(new(Services), "*"),
 )