feat(coding): add conversation archive and first-message titles

src/stores/coding-conversations.ts

@@ -8,6 +8,7 @@ import {
 } from '../../shared/coding-conversation-reducer';
 import { AppError } from '@/lib/error-model';
 import { queueCodingConversationSessionSync } from '@/lib/agent-session-sync';
+import { codingWorkspaceStore } from './coding-workspace';
 import {
   getCodingConversationSnapshot,
   openCodingConversationEvents,
@@ -660,8 +661,20 @@ export function createCodingConversationStore(
               set({ connectionState: 'error', globalError: 'Conversation 事件更新无法读取。' });
             }
           });
+          source.addEventListener('conversation.metadata-changed', (event) => {
+            if (eventSource !== source) return;
+            try {
+              const metadata = parse<{ projectId: string }>(event);
+              if (typeof metadata.projectId === 'string') {
+                void codingWorkspaceStore.getState().refreshConversations(metadata.projectId).catch(() => undefined);
+              }
+            } catch { /* Reconnection refreshes authoritative metadata. */ }
+          });
           source.onopen = () => {
-            if (eventSource === source) set({ connectionState: 'live', globalError: null });
+            if (eventSource !== source) return;
+            set({ connectionState: 'live', globalError: null });
+            const workspace = codingWorkspaceStore.getState();
+            if (workspace.activeProjectId) void workspace.refreshConversations(workspace.activeProjectId).catch(() => undefined);
           };
           source.onerror = () => {
             if (eventSource === source) {

src/stores/coding-workspace.ts

@@ -61,6 +61,7 @@ export interface CodingWorkspaceState {
   conversationErrorsByProjectId: Record<string, Record<string, string>>;
   creatingAgentIds: Record<string, true>;
   load(): Promise<void>;
+  refreshConversations(projectId: string): Promise<void>;
   openProject(projectPath: string): Promise<CodingProjectSummary>;
   createProject(input: {
     projectPath?: string;
@@ -139,6 +140,9 @@ export function createCodingWorkspaceStore(
   const conversationFlights = new Map<string, Promise<CodingConversationMetadata>>();
   let loadFlight: Promise<void> | null = null;
   let loadGeneration = 0;
+  let metadataRevision = 0;
+  let metadataTail = Promise.resolve();
+  const refreshFlights = new Map<string, { dirty: boolean; promise: Promise<void> }>();
 
   return createStore<CodingWorkspaceState>((set, get) => ({
     projects: [],
@@ -152,6 +156,30 @@ export function createCodingWorkspaceStore(
     conversationErrorsByProjectId: {},
     creatingAgentIds: {},
 
+    async refreshConversations(projectId) {
+      if (get().activeProjectId !== projectId) return;
+      const existing = refreshFlights.get(projectId);
+      if (existing) {
+        existing.dirty = true;
+        return await existing.promise;
+      }
+      const refresh = { dirty: true, promise: Promise.resolve() };
+      refresh.promise = (async () => {
+        while (refresh.dirty && get().activeProjectId === projectId) {
+          refresh.dirty = false;
+          await metadataTail;
+          const revision = metadataRevision;
+          const generation = loadGeneration;
+          const conversations = await deps.listConversations(projectId);
+          if (get().activeProjectId !== projectId || generation !== loadGeneration) return;
+          if (revision !== metadataRevision) { refresh.dirty = true; continue; }
+          if (!refresh.dirty) set({ conversations });
+        }
+      })().finally(() => { refreshFlights.delete(projectId); });
+      refreshFlights.set(projectId, refresh);
+      return await refresh.promise;
+    },
+
     async load() {
       if (loadFlight) return await loadFlight;
       const generation = ++loadGeneration;
@@ -175,6 +203,8 @@ export function createCodingWorkspaceStore(
             });
             return;
           }
+          if (get().activeProjectId === activeProject.id) await metadataTail;
+          const revision = metadataRevision;
           const [snapshot, conversations] = await Promise.all([
             deps.getConfig(activeProject.id),
             deps.listConversations(activeProject.id),
@@ -186,11 +216,13 @@ export function createCodingWorkspaceStore(
             activeProjectId: activeProject.id,
             activeProject: snapshot.project,
             config: snapshot.config,
-            conversations,
+            conversations: revision === metadataRevision || get().activeProjectId !== activeProject.id
+              ? conversations : get().conversations,
             selectedAgentId: currentAgentId ?? firstEnabledAgent(snapshot.config)?.id ?? null,
             loadState: 'ready',
             error: null,
           });
+          if (revision !== metadataRevision) void get().refreshConversations(activeProject.id).catch(() => undefined);
         })
         .catch((error) => {
           if (generation !== loadGeneration) return;
@@ -259,6 +291,7 @@ export function createCodingWorkspaceStore(
         agentId,
         title: '新对话',
       }).then((conversation) => {
+        metadataRevision += 1;
         if (get().activeProjectId !== state.activeProject?.id) return conversation;
         set((current) => ({
           conversations: [
@@ -285,6 +318,9 @@ export function createCodingWorkspaceStore(
     async patchConversation(conversationId, patch) {
       const sourceProjectId = get().activeProjectId;
       if (!sourceProjectId) throw new Error('当前没有可用的项目。');
+      metadataRevision += 1;
+      const flight = metadataTail.then(() => deps.patchConversation(conversationId, patch));
+      metadataTail = flight.then(() => undefined, () => undefined);
       set((current) => ({
         conversationErrorsByProjectId: withConversationError(
           current.conversationErrorsByProjectId,
@@ -294,10 +330,11 @@ export function createCodingWorkspaceStore(
         ),
       }));
       try {
-        const conversation = await deps.patchConversation(conversationId, patch);
+        const conversation = await flight;
         get().upsertConversation(sourceProjectId, conversation);
         return conversation;
       } catch (error) {
+        metadataRevision += 1;
         const message = error instanceof Error ? error.message : String(error);
         set((current) => ({
           conversationErrorsByProjectId: withConversationError(
@@ -312,6 +349,7 @@ export function createCodingWorkspaceStore(
     },
 
     upsertConversation(projectId, conversation) {
+      metadataRevision += 1;
       if (get().activeProjectId !== projectId) return;
       set((current) => ({
         conversations: [