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

web/src/layouts/user-layout.tsx

@@ -1,7 +1,6 @@
 import { useLayoutEffect, type ReactNode } from "react";
 import { useLocation } from "react-router";
 
-import { CanvasDeleteProjectsDialog } from "@/components/canvas/canvas-delete-projects-dialog";
 import { AppWorkspaceShell } from "@/components/layout/app-top-nav";
 import { cn } from "@/lib/utils";
 import { isSpatialWorkbenchPath } from "@/lib/workspace-routes";
@@ -19,7 +18,6 @@ export default function UserLayout({ children }: { children: ReactNode }) {
     return (
         <div className={cn("app-user-workspace h-dvh overflow-hidden text-foreground", spatialWorkbench && "app-spatial-workspace")}>
             <AppWorkspaceShell>{children}</AppWorkspaceShell>
-            <CanvasDeleteProjectsDialog />
         </div>
     );
 }