管理员智能体/技能管理 + 跨标签登录同步 + 上游响应异常重试

- 「设置和更多」新增「智能体管理」「技能管理」入口，与定时任务管理同级；
  独立的 AdminAgentsPage/AdminSkillsPage 复用 AgentCard/SkillRow，
  管理员可查看并编辑/删除所有用户的智能体与技能。
- 后端 /api/agents、/api/skills 增加 ?admin=true 越权列表；agents 端
  放宽 _get_editable_or_raise 让管理员可编辑/删除任意智能体；新增
  list_all/update_any/delete_any（agents）与 list_all（skills）。
- 新增 AuthSyncWatcher：监听 localStorage["deerflow.auth"] 的 storage
  事件，user_id 变化时自动 reload，修复多标签切换登录后老页面点击
  「新对话」偶发 404 的问题。
- LLMErrorHandlingMiddleware 将 bad_response_status_code / JSON
  decode 等上游网关乱码识别为可重试的 upstream 类故障。
- 侧边栏「任务管理」改名为「定时任务」。

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

frontend-web/src/components/page-sidebar.tsx

@@ -176,7 +176,7 @@ const menuItems: MenuItem[] = [
       { id: "mgmt-memory", label: "记忆管理", icon: Brain, path: "/page/strategy/memory" },
       {
         id: "mgmt-tasks",
-        label: "任务管理",
+        label: "定时任务",
         icon: ListChecks,
         path: "/page/strategy/scheduled/tasks",
       },

frontend-web/src/components/workspace/agents/agent-card.tsx

@@ -85,11 +85,12 @@ export function AgentCard({ agent }: AgentCardProps) {
   const isOwned =
     !isBuiltin && agent.user_id !== null && agent.user_id === currentUserId;
   const isFromOthers = !isBuiltin && !isOwned;
-  // System admins are allowed to edit and delete built-in agents.
+  // System admins are allowed to edit and delete any agent (built-in or owned
+  // by another user) so the admin console can manage the full catalog.
   // Publish-toggle stays owner-only — built-ins are inherently visible to
   // everyone so toggling published is moot.
-  const canEdit = isOwned || (isBuiltin && isAdmin);
-  const canDelete = isOwned || (isBuiltin && isAdmin);
+  const canEdit = isOwned || isAdmin;
+  const canDelete = isOwned || isAdmin;
 
   useEffect(() => {
     if (!editOpen) {

frontend-web/src/components/workspace/settings/skill-settings-page.tsx

@@ -333,7 +333,7 @@ function SkillSettingsList({ onClose }: { onClose?: () => void }) {
   );
 }
 
-function SkillRow({
+export function SkillRow({
   skill,
   currentUserId,
   isAdmin,

frontend-web/src/components/workspace/workspace-nav-chat-list.tsx

@@ -155,7 +155,7 @@ export function WorkspaceNavChatList({
               >
                 <Link href="/page/workspace/scheduled/tasks">
                   <ListChecks />
-                  <span>任务管理</span>
+                  <span>定时任务</span>
                 </Link>
               </SidebarMenuButton>
             </SidebarMenuItem>

frontend-web/src/components/workspace/workspace-nav-menu.tsx

@@ -2,6 +2,7 @@
 
 import {
   BellIcon,
+  BotIcon,
   BrainIcon,
   CalendarClockIcon,
   ChevronsUpDown,
@@ -12,6 +13,7 @@ import {
   Settings2Icon,
   SettingsIcon,
   ShieldCheckIcon,
+  SparklesIcon,
   TagsIcon,
   UsersIcon,
 } from "lucide-react";
@@ -182,6 +184,22 @@ export function WorkspaceNavMenu() {
                       定时任务管理
                     </DropdownMenuItem>
                   )}
+                  {isAdmin && (
+                    <DropdownMenuItem
+                      onClick={() => navigate("/page/workspace/admin/agents")}
+                    >
+                      <BotIcon />
+                      智能体管理
+                    </DropdownMenuItem>
+                  )}
+                  {isAdmin && (
+                    <DropdownMenuItem
+                      onClick={() => navigate("/page/workspace/admin/skills")}
+                    >
+                      <SparklesIcon />
+                      技能管理
+                    </DropdownMenuItem>
+                  )}
                   {isAdmin && (
                     <DropdownMenuItem
                       onClick={() => navigate("/page/workspace/admin/tags")}