perf(*): 创作工作台 - 优化首页按需加载与画布交互并修复历史迁移冲突

backend/internal/handler/user_data_page_test.go

@@ -0,0 +1,31 @@
+package handler
+
+import (
+	"testing"
+
+	"infinite-canvas/backend/internal/service"
+
+	"github.com/gin-gonic/gin"
+)
+
+func TestUserDataIncrementalRoutesAreRegistered(t *testing.T) {
+	gin.SetMode(gin.TestMode)
+	router := gin.New()
+	RegisterUserDataRoutes(router.Group("/api"), &service.Service{})
+	wanted := map[string]bool{
+		"GET /api/canvas-projects":     false,
+		"GET /api/canvas-projects/:id": false,
+		"POST /api/assets/batch":       false,
+	}
+	for _, route := range router.Routes() {
+		key := route.Method + " " + route.Path
+		if _, exists := wanted[key]; exists {
+			wanted[key] = true
+		}
+	}
+	for route, found := range wanted {
+		if !found {
+			t.Errorf("missing route: %s", route)
+		}
+	}
+}