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/components/auth/auth-session-hydrator.tsx

@@ -1,8 +1,7 @@
 import type { ReactNode } from "react";
 import { useEffect } from "react";
 
-import { applyUserSession } from "@/lib/user-session";
-import { getAuthSession } from "@/services/api/auth";
+import { getAuthSession, type AuthSessionPayload } from "@/services/api/auth";
 import { FullScreenLoader } from "@/components/ui/aceternity/full-screen-loader";
 import { preloadWorkspaceRoute } from "@/lib/workspace-route-modules";
 import { useUserStore } from "@/stores/use-user-store";
@@ -12,14 +11,21 @@ export function AuthSessionHydrator({ children }: { children: ReactNode }) {
 
     useEffect(() => {
         let cancelled = false;
-        // 登录态与当前工作区 chunk 并行恢复，避免进入应用后再出现一次页面级等待。
-        preloadWorkspaceRoute(window.location.pathname);
         getAuthSession()
             .then(async (payload) => {
-                if (!cancelled) await applyUserSession(payload);
+                if (cancelled) return;
+                if (!payload.user) {
+                    applyAnonymousSession(payload);
+                    return;
+                }
+                // 账号数据、画布和素材持久化只属于已登录工作区，登录页不下载这些模块。
+                const { applyUserSession } = await import("@/lib/user-session");
+                if (cancelled) return;
+                await applyUserSession(payload);
+                preloadWorkspaceRoute(window.location.pathname);
             })
-            .catch(async () => {
-                if (!cancelled) await applyUserSession({ user: null, logicalModels: [] });
+            .catch(() => {
+                if (!cancelled) applyAnonymousSession({ user: null, logicalModels: [] });
             });
         return () => {
             cancelled = true;
@@ -28,3 +34,12 @@ export function AuthSessionHydrator({ children }: { children: ReactNode }) {
 
     return hydrated ? children : <FullScreenLoader />;
 }
+
+function applyAnonymousSession(payload: AuthSessionPayload) {
+    const store = useUserStore.getState();
+    store.clearSession();
+    store.setRuntimeLimits(payload.runtimeLimits);
+    store.setDrawingEngine(payload.drawingEngine);
+    store.setFeatures(payload.features);
+    store.setHydrated(true);
+}