feat(ai-writing): 课题研究笔记本内嵌打开 + 新建/所有空间入口（0616 #5）

- 左栏点笔记本/所有空间 → 右侧内嵌打开（不跳路由），写作布局保持挂载（display:none，不丢 setup 线程），顶部「返回写作」
- ResearchSidebar 加「新建空间」(弹窗 createSearchSpace) 与「所有空间」入口
- StudioNotebookDetailPage 加可选 notebookId prop；StudioNotebooksPage 加可选 onOpenNotebook（内嵌时卡片走回调而非 Link），列表内点空间内嵌打开详情
- 内嵌笔记本详情用 ChatRuntime 包裹（修复 useArtifacts must be used within an ArtifactsProvider）

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

frontend-web/src/open-canvas/components/ai-writing/ResearchSidebar.tsx

@@ -1,8 +1,18 @@
 "use client";
 
-import { BookOpen, FileText } from "lucide-react";
+import { BookOpen, FileText, LayoutGrid, Loader2, Plus } from "lucide-react";
-import { useEffect } from "react";
+import { useEffect, useState } from "react";
+import { useQueryClient } from "@tanstack/react-query";
 
+import { Button } from "@/components/ui/button";
+import {
+  Dialog,
+  DialogContent,
+  DialogHeader,
+  DialogTitle,
+} from "@/components/ui/dialog";
+import { getStoredAuth } from "@/core/auth";
+import { createSearchSpace } from "@/core/studio/api";
 import { useStudioNotebooks } from "@/core/studio/hooks";
 import { cn } from "@/lib/utils";
 
@@ -16,38 +26,64 @@ import { useWritingForm } from "../../contexts/WritingFormContext";
  *  - 下半「笔记本」= 我的空间（``useStudioNotebooks``）；点击设为当前课题研究的素材来源
  *    （materialSource='notebook' + 选中该本）。
  */
-export function ResearchSidebar() {
+export function ResearchSidebar({
+  viewingNotebookId,
+  onOpenNotebook,
+  onOpenAllSpaces,
+}: {
+  /** 当前在右侧查看的笔记本 id（高亮用）。 */
+  viewingNotebookId?: number | null;
+  /** 点击笔记本 → 在右侧内嵌打开该笔记本页（替换右侧内容）。 */
+  onOpenNotebook: (notebookId: number) => void;
+  /** 点击「所有空间」→ 在右侧内嵌打开空间列表页。 */
+  onOpenAllSpaces: () => void;
+}) {
   const { articleTypes, refresh } = useArticleTypes();
-  const { notebooks } = useStudioNotebooks();
   const {
-    articleType,
+    notebooks,
-    setArticleType,
+    isLoading: notebooksLoading,
-    setWordCountInput,
+    isError: notebooksError,
-    setFormExpanded,
+  } = useStudioNotebooks();
-    materialSource,
+  const { articleType, setArticleType, setWordCountInput, setFormExpanded } =
-    setMaterialSource,
+    useWritingForm();
-    selectedNotebookId,
+  const queryClient = useQueryClient();
-    setSelectedNotebookId,
+
-    setSelectedDocumentIds,
+  // 新建空间弹窗（与 workspace-nav-studio 同款）。
-  } = useWritingForm();
+  const [createOpen, setCreateOpen] = useState(false);
+  const [name, setName] = useState("");
+  const [creating, setCreating] = useState(false);
+  const [createError, setCreateError] = useState("");
 
   useEffect(() => {
     void refresh();
   }, [refresh]);
 
+  const handleCreate = async () => {
+    const trimmed = name.trim();
+    if (!trimmed) return;
+    setCreating(true);
+    setCreateError("");
+    try {
+      const email = getStoredAuth()?.email ?? "";
+      const token = queryClient.getQueryData<string>(["studio", "token", email]);
+      if (!token) throw new Error("未登录或 token 已过期，请刷新页面");
+      await createSearchSpace(trimmed, token);
+      setCreateOpen(false);
+      setName("");
+      await queryClient.invalidateQueries({ queryKey: ["studio", "notebooks"] });
+    } catch (e) {
+      setCreateError(e instanceof Error ? e.message : "创建失败");
+    } finally {
+      setCreating(false);
+    }
+  };
+
   const handleTemplateClick = (key: string, defaultWordCount: number) => {
     setArticleType(key);
     if (defaultWordCount > 0) setWordCountInput(String(defaultWordCount));
     setFormExpanded(true);
   };
 
-  const handleNotebookClick = (notebookId: number) => {
-    setMaterialSource("notebook");
-    setSelectedNotebookId(notebookId);
-    setSelectedDocumentIds([]);
-    setFormExpanded(true);
-  };
-
   return (
     <aside className="flex h-full w-64 shrink-0 flex-col overflow-hidden border-r border-border/70 bg-card/60 backdrop-blur-sm">
       {/* 上半：研究模板（文章类型） */}
@@ -95,18 +131,37 @@ export function ResearchSidebar() {
         <h2 className="text-muted-foreground/70 px-2 mb-1.5 text-[10px] font-semibold tracking-[0.12em] uppercase select-none">
           笔记本
         </h2>
-        {notebooks.length === 0 ? (
+        <div className="flex flex-col gap-0.5">
-          <p className="px-2 py-1.5 text-xs text-muted-foreground/70">暂无笔记本</p>
+          {/* 新建空间 */}
-        ) : (
+          <button
-          <div className="flex flex-col gap-0.5">
+            type="button"
-            {notebooks.map((nb) => {
+            onClick={() => {
-              const active =
+              setName("");
-                materialSource === "notebook" && selectedNotebookId === nb.id;
+              setCreateError("");
+              setCreateOpen(true);
+            }}
+            className="flex items-center gap-2 rounded-lg px-2.5 py-1.5 text-left text-[13px] text-muted-foreground transition-colors hover:bg-sidebar-accent/60 hover:text-foreground"
+          >
+            <Plus className="size-3.5 shrink-0 text-muted-foreground/70" />
+            <span>新建空间</span>
+          </button>
+
+          {notebooksLoading ? (
+            <p className="px-2 py-1.5 text-xs text-muted-foreground/70">加载中…</p>
+          ) : notebooksError ? (
+            <p className="px-2 py-1.5 text-xs text-amber-600">
+              笔记本服务暂不可用（检查空间服务地址 / 账号）
+            </p>
+          ) : notebooks.length === 0 ? (
+            <p className="px-2 py-1.5 text-xs text-muted-foreground/70">暂无笔记本</p>
+          ) : (
+            notebooks.map((nb) => {
+              const active = viewingNotebookId === nb.id;
               return (
                 <button
                   key={nb.id}
                   type="button"
-                  onClick={() => handleNotebookClick(nb.id)}
+                  onClick={() => onOpenNotebook(nb.id)}
                   title={nb.description || nb.name}
                   className={cn(
                     "flex items-center gap-2 rounded-lg px-2.5 py-1.5 text-left text-[13px] transition-colors",
@@ -119,10 +174,60 @@ export function ResearchSidebar() {
                   <span className="truncate">{nb.name}</span>
                 </button>
               );
-            })}
+            })
-          </div>
+          )}
-        )}
+
+          {/* 所有空间 */}
+          <button
+            type="button"
+            onClick={onOpenAllSpaces}
+            className="flex items-center gap-2 rounded-lg px-2.5 py-1.5 text-left text-[13px] text-muted-foreground transition-colors hover:bg-sidebar-accent/60 hover:text-foreground"
+          >
+            <LayoutGrid className="size-3.5 shrink-0 text-muted-foreground/70" />
+            <span>所有空间</span>
+          </button>
+        </div>
       </div>
+
+      {/* 新建空间弹窗 */}
+      <Dialog open={createOpen} onOpenChange={(v) => !creating && setCreateOpen(v)}>
+        <DialogContent className="sm:max-w-md">
+          <DialogHeader>
+            <DialogTitle>新建空间</DialogTitle>
+          </DialogHeader>
+          <div className="flex flex-col gap-4 pt-2">
+            <input
+              autoFocus
+              value={name}
+              onChange={(e) => setName(e.target.value)}
+              onKeyDown={(e) => {
+                if (e.key === "Enter") void handleCreate();
+              }}
+              placeholder="空间名称"
+              disabled={creating}
+              className="w-full rounded-lg border border-border bg-background px-3 py-2 text-sm outline-none focus:ring-2 focus:ring-primary disabled:opacity-50"
+            />
+            {createError && <p className="text-xs text-destructive">{createError}</p>}
+            <div className="flex justify-end gap-2">
+              <Button
+                variant="outline"
+                size="sm"
+                disabled={creating}
+                onClick={() => setCreateOpen(false)}
+              >
+                取消
+              </Button>
+              <Button
+                size="sm"
+                disabled={!name.trim() || creating}
+                onClick={() => void handleCreate()}
+              >
+                {creating ? <Loader2 className="size-4 animate-spin" /> : "创建"}
+              </Button>
+            </div>
+          </div>
+        </DialogContent>
+      </Dialog>
     </aside>
   );
 }

frontend-web/src/open-canvas/pages/AIWritingPage.tsx

@@ -81,8 +81,8 @@
  *         -d '{"retention_days": 0}'
  * ──────────────────────────────────────────────────────────────────────────
  */
-import { useRef } from 'react';
+import { useRef, useState } from 'react';
-import { PanelRightOpen } from 'lucide-react';
+import { ArrowLeft, PanelRightOpen } from 'lucide-react';
 import { TooltipProvider } from '@/components/ui/tooltip';
 import { cn } from '@/lib/utils';
 import type { GroupImperativeHandle } from 'react-resizable-panels';
@@ -94,6 +94,12 @@ import { AIWritingPanel } from '../components/ai-writing/AIWritingPanel';
 import { AIWritingDraftPanel } from '../components/ai-writing/AIWritingDraftPanel';
 import { WritingSetupChat } from '../components/ai-writing/WritingSetupChat';
 import { ResearchSidebar } from '../components/ai-writing/ResearchSidebar';
+import StudioNotebookDetailPage from '@/pages/StudioNotebookDetailPage';
+import StudioNotebooksPage from '@/pages/StudioNotebooksPage';
+import { ChatRuntime } from '@/pages/WorkspaceRoutes';
+
+/** 右侧内嵌视图：笔记本详情 / 所有空间列表 / null（写作） */
+type RightView = { kind: 'notebook'; id: number } | { kind: 'allSpaces' } | null;
 import { AIWritingProvider, useAIWriting } from '../contexts/AIWritingContext';
 import { AIWritingHistoryProvider, useAIWritingHistory } from '../contexts/AIWritingHistoryContext';
 import { WritingFormProvider, useWritingForm } from '../contexts/WritingFormContext';
@@ -222,6 +228,12 @@ export default function AIWritingPage({
   initialDocumentIds?: number[];
   studioToken?: string;
 } = {}) {
+  // 需求 0616 #5：左栏点「笔记本 / 所有空间」→ 在右侧内嵌打开对应页，替换右侧内容
+  // （写作布局不卸载，仅 display:none 隐藏，避免 WritingSetupChat 重挂丢线程）。
+  const [rightView, setRightView] = useState<RightView>(null);
+  const overlayActive = rightView != null;
+  const viewingNotebookId = rightView?.kind === 'notebook' ? rightView.id : null;
+
   return (
     <CanvasThreadProvider>
     <CanvasGraphProvider>
@@ -237,9 +249,56 @@ export default function AIWritingPage({
         <div className="h-full flex flex-col overflow-hidden bg-background canvas-writing-bg">
           <div className="flex-1 min-h-0 overflow-hidden flex">
             {/* 需求 0616 #5：课题研究左栏（研究模板 + 笔记本）。studio 嵌入态(studioToken)隐藏。 */}
-            {!studioToken && <ResearchSidebar />}
+            {!studioToken && (
-            <div className="flex-1 min-h-0 overflow-hidden">
+              <ResearchSidebar
-              <AIWritingLayout hideAdvancedFields={hideAdvancedFields} initialNotebookId={initialNotebookId} initialDocumentIds={initialDocumentIds} studioToken={studioToken} />
+                viewingNotebookId={viewingNotebookId}
+                onOpenNotebook={(id) => setRightView({ kind: 'notebook', id })}
+                onOpenAllSpaces={() => setRightView({ kind: 'allSpaces' })}
+              />
+            )}
+            {/* 右侧：写作布局常驻（仅 display:none 隐藏，避免 WritingSetupChat 重挂丢线程），
+                查看笔记本 / 所有空间时在其上叠加内嵌页。 */}
+            <div className="relative flex-1 min-h-0 overflow-hidden">
+              <div className={cn('absolute inset-0', overlayActive && 'hidden')}>
+                <AIWritingLayout hideAdvancedFields={hideAdvancedFields} initialNotebookId={initialNotebookId} initialDocumentIds={initialDocumentIds} studioToken={studioToken} />
+              </div>
+              {overlayActive && (
+                <div className="absolute inset-0 flex flex-col bg-background">
+                  <div className="flex shrink-0 items-center gap-1 border-b border-border px-4 py-2">
+                    <button
+                      type="button"
+                      onClick={() => setRightView(null)}
+                      className="flex items-center gap-1.5 rounded-md px-2 py-1 text-sm text-muted-foreground transition-colors hover:bg-muted hover:text-foreground"
+                    >
+                      <ArrowLeft className="size-4" />
+                      返回写作
+                    </button>
+                    {rightView.kind === 'notebook' && (
+                      <button
+                        type="button"
+                        onClick={() => setRightView({ kind: 'allSpaces' })}
+                        className="ml-1 rounded-md px-2 py-1 text-sm text-muted-foreground transition-colors hover:bg-muted hover:text-foreground"
+                      >
+                        所有空间
+                      </button>
+                    )}
+                  </div>
+                  <div className="min-h-0 flex-1 overflow-hidden">
+                    {rightView.kind === 'notebook' ? (
+                      // 笔记本详情页内部用 ChatBox(useArtifacts) → 需 ChatRuntime 提供 Provider。
+                      <ChatRuntime>
+                        <StudioNotebookDetailPage key={rightView.id} notebookId={rightView.id} />
+                      </ChatRuntime>
+                    ) : (
+                      <div className="h-full overflow-y-auto">
+                        <StudioNotebooksPage
+                          onOpenNotebook={(id) => setRightView({ kind: 'notebook', id })}
+                        />
+                      </div>
+                    )}
+                  </div>
+                </div>
+              )}
             </div>
           </div>
         </div>

frontend-web/src/pages/StudioNotebookDetailPage.tsx

@@ -209,8 +209,15 @@ function SourcesDialog({
 }
 
 // ── 主页面 ──────────────────────────────────────────────
-export default function StudioNotebookDetailPage() {
+export default function StudioNotebookDetailPage({
-  const { notebookId } = useParams<{ notebookId: string }>();
+  notebookId: notebookIdProp,
+}: {
+  /** 内嵌使用（如课题研究右侧）时直接传入；缺省则从路由参数取。 */
+  notebookId?: number;
+} = {}) {
+  const params = useParams<{ notebookId: string }>();
+  const notebookId =
+    notebookIdProp != null ? String(notebookIdProp) : params.notebookId;
   const { notebooks, isLoading, token: studioToken } = useStudioNotebooks(); // token 用于跳转 callback
   const { models } = useModels();
   const queryClient = useQueryClient();

frontend-web/src/pages/StudioNotebooksPage.tsx

@@ -39,17 +39,16 @@ function NotebookCard({
   nb,
   onRename,
   onDelete,
+  onOpen,
 }: {
   nb: StudioNotebook;
   onRename: (nb: StudioNotebook) => void;
   onDelete: (nb: StudioNotebook) => void;
+  /** 传入则点击卡片回调（内嵌打开），不再路由跳转。 */
+  onOpen?: (id: number) => void;
 }) {
-  return (
+  const inner = (
-    <div className="group relative flex flex-col rounded-[20px] bg-[#f2f2f2] transition-colors hover:bg-[#e8e8e8]" style={{ minHeight: 180 }}>
+    <>
-      <Link
-        to={`/page/workspace/studio/notebooks/${nb.id}`}
-        className="flex flex-1 flex-col p-5"
-      >
         <div className="flex items-start justify-between">
           <div className="flex size-11 items-center justify-center text-3xl leading-none select-none">
             {nb.avatar_url ? (
@@ -67,7 +66,27 @@ function NotebookCard({
           </span>
           <span className="text-[13px] text-[#666]">{nb.source_count} 个来源</span>
         </div>
-      </Link>
+    </>
+  );
+
+  return (
+    <div className="group relative flex flex-col rounded-[20px] bg-[#f2f2f2] transition-colors hover:bg-[#e8e8e8]" style={{ minHeight: 180 }}>
+      {onOpen ? (
+        <button
+          type="button"
+          onClick={() => onOpen(nb.id)}
+          className="flex flex-1 flex-col p-5 text-left"
+        >
+          {inner}
+        </button>
+      ) : (
+        <Link
+          to={`/page/workspace/studio/notebooks/${nb.id}`}
+          className="flex flex-1 flex-col p-5"
+        >
+          {inner}
+        </Link>
+      )}
 
       {/* three-dot menu — absolute so it doesn't shift layout */}
       <div className="absolute right-4 top-4">
@@ -99,7 +118,12 @@ function NotebookCard({
   );
 }
 
-export default function StudioNotebooksPage() {
+export default function StudioNotebooksPage({
+  onOpenNotebook,
+}: {
+  /** 内嵌使用（课题研究右侧）时传入：点击空间卡片回调，不跳路由。 */
+  onOpenNotebook?: (id: number) => void;
+} = {}) {
   const { notebooks, isLoading, isError } = useStudioNotebooks();
   const queryClient = useQueryClient();
 
@@ -204,6 +228,7 @@ export default function StudioNotebooksPage() {
               nb={nb}
               onRename={(nb) => { setRenameTarget(nb); setRenameName(nb.name); setRenameError(""); }}
               onDelete={(nb) => { setDeleteTarget(nb); setDeleteError(""); }}
+              onOpen={onOpenNotebook}
             />
           ))}
       </div>