fix(workspace): 创作工作台 - 修复线上样式层级并优化 Agent、菜单与素材密度

web/src/components/layout/workspace-sidebar-nav.tsx

@@ -81,7 +81,7 @@ function WorkspaceSidebarProfile({ collapsed, user }: { collapsed: boolean; user
             <WorkspaceSidebarCheckin collapsed={collapsed} />
             <WorkspaceSidebarStorageMeter collapsed={collapsed} />
             <div className={cn("app-workspace-sidebar-profile-row", collapsed && "is-collapsed")}>
-                <Popover open={menuOpen} onOpenChange={setMenuOpen} trigger="click" placement="topLeft" rootClassName="workspace-account-popover" content={content}>
+                <Popover open={menuOpen} onOpenChange={setMenuOpen} trigger="click" placement="topLeft" arrow={false} rootClassName="workspace-account-popover" content={content}>
                     <button type="button" className={cn("app-workspace-sidebar-profile", collapsed && "is-collapsed")} aria-label="打开账户菜单" title={profileName}>
                         <span className="app-workspace-sidebar-profile-avatar">{avatar}</span>
                         {!collapsed ? <span className="app-workspace-sidebar-profile-copy"><strong>{profileName}</strong><span>创作工作台</span></span> : null}