chore: gofmt

backend/internal/handler/gateway_handler.go

@@ -596,6 +596,7 @@ func cloneAPIKeyWithGroup(apiKey *service.APIKey, group *service.Group) *service
 	cloned.Group = group
 	return &cloned
 }
+
 // Usage handles getting account balance and usage statistics for CC Switch integration
 // GET /v1/usage
 func (h *GatewayHandler) Usage(c *gin.Context) {

backend/internal/pkg/antigravity/oauth.go

@@ -81,6 +81,7 @@ func ForwardBaseURLs() []string {
 	}
 	return reordered
 }
+
 // URLAvailability 管理 URL 可用性状态（带 TTL 自动恢复和动态优先级）
 type URLAvailability struct {
 	mu          sync.RWMutex