feat: AI writing history, Word export, roundtable dispatch chain

frontend-web/src/pages/WorkspaceRoutes.tsx

@@ -41,6 +41,7 @@ import StudioNotebooksPage from './StudioNotebooksPage';
 import StudioNotebookDetailPage from './StudioNotebookDetailPage';
 import RoundtablePlanningPage from '@/roundtable-planning/pages/RoundtablePlanningPage';
 import BusinessChainEditorPage from '@/roundtable-planning/pages/BusinessChainEditorPage';
+import DispatchChainPreviewPage from '@/roundtable-planning/pages/DispatchChainPreviewPage';
 import '@/roundtable-planning/styles/roundtable-planning.css';
 import { cn } from '@/lib/utils';
 
@@ -324,6 +325,15 @@ export default function WorkspaceRoutes({
             </WorkspaceLayout>
           }
         />
+        {/* Phase 7 临时预览入口：派活链路流程图弹窗（假数据自测，接通后台后可删） */}
+        <Route
+          path="roundtable/chain-preview"
+          element={
+            <WorkspaceLayout {...layoutProps}>
+              <DispatchChainPreviewPage />
+            </WorkspaceLayout>
+          }
+        />
         <Route
           path="scheduled"
           element={<Navigate to="/page/workspace/scheduled/tasks" replace />}