fix: 修复生成链路三个阻塞问题

1. EditingPlanner.css: 状态栏 display:none → flex 布局，恢复「生成历史」按钮可见
2. main.tsx: 添加 <AntApp> 包裹，修复 antd v5 message.xxx() toast 不显示
3. EditingPlanner.tsx: handleGoToGenerate 先重置计划状态为 draft，
   解决 failed 状态计划无法更新配置和触发生成的问题

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

apps/web/src/main.tsx

@@ -6,7 +6,7 @@ import React from "react";
 import ReactDOM from "react-dom/client";
 import { RouterProvider } from "react-router-dom";
 import { QueryClient, QueryClientProvider } from "@tanstack/react-query";
-import { ConfigProvider } from "antd";
+import { ConfigProvider, App as AntApp } from "antd";
 import zhCN from "antd/locale/zh_CN";
 import router from "./router";
 import "./index.css";
@@ -91,7 +91,9 @@ ReactDOM.createRoot(document.getElementById("root")!).render(
   <React.StrictMode>
     <QueryClientProvider client={queryClient}>
       <ConfigProvider locale={zhCN} theme={theme}>
-        <RouterProvider router={router} />
+        <AntApp>
+          <RouterProvider router={router} />
+        </AntApp>
       </ConfigProvider>
     </QueryClientProvider>
   </React.StrictMode>,

apps/web/src/pages/editing-planner/EditingPlanner.css

@@ -1812,7 +1812,27 @@
    ═══════════════════════════════════════ */
 
 .ep-status-bar {
-  display: none;
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  padding: 6px 16px;
+  background: var(--ep-bg-card, #fff);
+  border-bottom: 1px solid var(--ep-border, #e8e8e8);
+  font-size: 12px;
+  color: var(--text-secondary, #666);
+  flex-shrink: 0;
+}
+
+.ep-status-left,
+.ep-status-right {
+  display: flex;
+  align-items: center;
+  gap: 4px;
+}
+
+.ep-status-sep {
+  margin: 0 4px;
+  opacity: 0.35;
 }
 
 /* ═══════════════════════════════════════

apps/web/src/pages/editing-planner/EditingPlanner.tsx

@@ -955,14 +955,19 @@ const EditingPlanner: React.FC = () => {
       let planId = loadedPlanId;
 
       if (planId) {
-        // 已有计划 → 更新配置（不传 status，避免非 draft 状态被后端拒绝）
+        // 已有计划 → 先重置状态为 draft（failed/editing 等非 draft 状态会被后端拒绝更新和生成）
+        try {
+          await updateEditPlan(planId, { status: "draft" });
+        } catch (resetErr) {
+          console.warn("[状态重置跳过]", resetErr);
+        }
+        // 再更新配置
         try {
           await updateEditPlan(planId, {
             config,
             total_duration: totalDuration,
           });
         } catch (updateErr) {
-          // 非 draft 状态（如 failed/editing）PUT 会被拒绝，忽略继续生成
           console.warn("[计划更新跳过]", updateErr);
         }
       } else {