feat: organize project conversations and add coding teacher side chat

src/App.tsx

@@ -407,6 +407,9 @@ function App() {
     };
     const unsubscribeAgentLink = window.electron.ipcRenderer.on('cloud-agent-link', openAgentLink);
     openAgentLink();
+    void hostApiFetch<{draftRevision: number | null}>('/api/coding/teacher-preview/pending-link')
+      .then(({draftRevision}) => { if (draftRevision) navigate('/coding-teacher-preview?draftRevision=' + draftRevision); })
+      .catch(() => undefined);
 
     return () => {
       if (typeof unsubscribe === 'function') {
@@ -463,6 +466,7 @@ function App() {
             <Route path="/kangaroo" element={<Navigate to="/project-config" replace />} />
             <Route path="/subagents" element={<Navigate to="/project-config" replace />} />
             <Route path="/chat" element={<ProjectChatRoute />} />
+            <Route path="/coding-teacher-preview" element={<TeacherPreviewPage />} />
             <Route path="/deliverables" element={<PreviewScene />} />
             <Route path="/image-canvas" element={<ImageCanvas />} />
             <Route path="/image-prompts/*" element={<Navigate to="/image-canvas" replace />} />
@@ -489,3 +493,5 @@ function App() {
 }
 
 export default App;
+import { TeacherPreviewPage } from '@/pages/Chat/TeacherPreviewPage';
+import { hostApiFetch } from '@/lib/host-api';