feat(canvas): 创作助手 - 合并创作对话、能力发现与画布接续

backend/internal/handler/api.go

@@ -22,6 +22,7 @@ func RegisterCanvasAPI(api *gin.RouterGroup, svc *service.Service) {
 	RegisterAdminSystemPerformanceRoutes(api, svc)
 	RegisterAnnouncementRoutes(api, svc)
 	RegisterFinanceRoutes(api, svc)
+	RegisterCreationRoutes(api, svc)
 	RegisterPaymentRoutes(api, svc)
 	RegisterLibTVRoutes(api, svc)
 	RegisterTapNowRoutes(api, svc)