refactor(auth): 移除用户登出功能并优化导航组件

- 从 app-top-nav.tsx 中移除登出相关代码和 LogOut 图标
- 从 canvas-client-page.tsx 中移除用户信息显示和登出回调函数
- 从 admin layout.tsx 中移除登出菜单项
- 将 navigation-tools 从 lib 目录迁移到 constant 目录
- 更新 UserStatusActions 组件以简化用户菜单逻辑
- 在用户状态操作组件中集成快捷键功能和管理员入口

web/src/app/(user)/canvas/[id]/canvas-client-page.tsx

@@ -2160,16 +2160,12 @@ function CanvasTopBar({
 
       <div className="pointer-events-auto flex items-center gap-1.5">
         <UserStatusActions
+          variant="canvas"
           accountOpen={accountOpen}
           onAccountOpenChange={setAccountOpen}
           accountRef={accountRef}
           getPopupContainer={(node) => node.parentElement || document.body}
           onOpenShortcuts={() => { setShortcutsOpen(true); setAccountOpen(false); }}
-          iconStyle={{ color: theme.node.text }}
-          gitHubClassName="size-11 text-base"
-          gitHubStyle={{ color: theme.node.text }}
-          versionStyle={{ color: theme.node.text }}
-          avatarStyle={{ borderColor: theme.toolbar.border, color: theme.node.text }}
         />
         {assistantCollapsed ? (
           <>

web/src/app/(user)/layout.tsx

@@ -1,22 +1,13 @@
 "use client";
 
 import type { ReactNode } from "react";
-import { usePathname } from "next/navigation";
 
 import { AppTopNav } from "@/components/layout/app-top-nav";
-import { type NavigationToolSlug, navigationTools } from "@/constant/navigation-tools";
-import { useConfigStore } from "@/stores/use-config-store";
 
 export default function UserLayout({ children }: { children: ReactNode }) {
-  const pathname = usePathname();
-  const config = useConfigStore((state) => state.config);
-  const updateConfig = useConfigStore((state) => state.updateConfig);
-  const slug = pathname.split("/").filter(Boolean)[0];
-  const activeToolSlug = navigationTools.some((tool) => tool.slug === slug) ? (slug as NavigationToolSlug) : undefined;
-
   return (
     <div className="flex h-dvh flex-col overflow-hidden bg-background text-foreground">
-      <AppTopNav activeToolSlug={activeToolSlug} config={config} onConfigChange={updateConfig} hideHeader={/^\/canvas\/[^/]+/.test(pathname)} />
+      <AppTopNav />
       <div className="min-h-0 flex-1 overflow-hidden">{children}</div>
     </div>
   );