fix(hololake): avoid no-op agent workspace writes

product-source/hololake-platform/docs/skills/internal-release-packaging/SKILL.md

@@ -54,6 +54,8 @@ pnpm package:internal:windows
 
 内测 Mac 包是 ad-hoc 签名、未公证；Windows 包在没有商业证书时未做 Authenticode 签名。交付时必须明确说明，不能描述成正式签名发行版。
 
+`tauri.local-candidate.conf.json` 的独立 bundle identifier 只保证候选应用可以与已安装版本并存，不隔离运行数据。当前架构仍从共享的 `com.tolaria.app` 命名空间读取设置、挂载知识库和 Agent 会话。需要无扰动验收时，必须用临时 `XDG_CONFIG_HOME` 启动候选，并在临时配置副本上验证；不能把“没有点击保存”当成“没有写盘”。
+
 ## Windows 构建恢复顺序
 
 1. `pnpm install --frozen-lockfile`

product-source/hololake-platform/scripts/local-native-candidate.test.mjs

@@ -4,7 +4,7 @@ import test from 'node:test'
 
 const readJson = async path => JSON.parse(await readFile(path, 'utf8'))
 
-test('local native candidate has an isolated macOS identity', async () => {
+test('local native candidate has an isolated macOS package identity', async () => {
   const [base, candidate, packageJson] = await Promise.all([
     readJson('src-tauri/tauri.conf.json'),
     readJson('src-tauri/tauri.local-candidate.conf.json'),

product-source/hololake-platform/src/components/AiWorkspace.test.tsx

@@ -360,6 +360,30 @@ describe('AiWorkspace', () => {
     expect(screen.queryByRole('button', { name: 'Current work' })).toBeNull()
   })
 
+  it('does not rewrite unchanged conversation settings when the workspace opens', async () => {
+    const onConversationSettingsChange = vi.fn()
+
+    render(
+      <AiWorkspace
+        open
+        mode="side"
+        aiAgentsStatus={installedStatuses()}
+        aiModelProviders={providers}
+        conversationSettings={[
+          { id: 'live-chat', title: 'Current work', target_id: null, archived: false },
+        ]}
+        vaultPath="/tmp/vault"
+        onClose={vi.fn()}
+        onConversationSettingsChange={onConversationSettingsChange}
+      />,
+    )
+
+    await waitFor(() => {
+      expect(screen.getByRole('button', { name: 'Current work' })).toBeTruthy()
+    })
+    expect(onConversationSettingsChange).not.toHaveBeenCalled()
+  })
+
   it('recovers stored sessions that no longer have conversation metadata', async () => {
     setAiWorkspaceSessionMessages('orphaned-chat', [{
       userMessage: 'Recovered prompt',

product-source/hololake-platform/src/components/aiWorkspaceConversations.ts

@@ -197,6 +197,20 @@ function conversationsToSettings(conversations: AiConversation[]): AiWorkspaceCo
   }))
 }
 
+function conversationSettingsEqual(
+  current: AiWorkspaceConversationSetting[],
+  stored: AiWorkspaceConversationSetting[] | null | undefined,
+): boolean {
+  if (!stored || current.length !== stored.length) return false
+  return current.every((conversation, index) => {
+    const persisted = stored[index]
+    return conversation.archived === (persisted.archived === true)
+      && conversation.id === persisted.id
+      && conversation.target_id === (persisted.target_id?.trim() || null)
+      && conversation.title === persisted.title
+  })
+}
+
 export function activeConversationForState(
   conversations: AiConversation[],
   activeId: ConversationId,
@@ -370,10 +384,12 @@ function initialActiveId(conversations: AiConversation[], requestedId: Conversat
 function useConversationSettingsPersistence({
   conversations,
   onSettingsChange,
+  settings,
   settingsReady,
 }: {
   conversations: AiConversation[]
   onSettingsChange?: (conversations: AiWorkspaceConversationSetting[]) => void
+  settings?: AiWorkspaceConversationSetting[] | null
   settingsReady: boolean
 }) {
   const onSettingsChangeRef = useRef(onSettingsChange)
@@ -384,8 +400,10 @@ function useConversationSettingsPersistence({
 
   useEffect(() => {
     if (!settingsReady) return
-    onSettingsChangeRef.current?.(conversationsToSettings(conversations))
+    const nextSettings = conversationsToSettings(conversations)
-  }, [conversations, settingsReady])
+    if (conversationSettingsEqual(nextSettings, settings)) return
+    onSettingsChangeRef.current?.(nextSettings)
+  }, [conversations, settings, settingsReady])
 }
 
 function useTitleConversationFromAnswer(setConversations: SetConversations) {
@@ -490,7 +508,7 @@ export function useConversations({
 
   const titleConversationFromAnswer = useTitleConversationFromAnswer(setConversations)
   const updateDefaultConversationTargets = useUpdateDefaultConversationTargets(setConversations)
-  useConversationSettingsPersistence({ conversations, onSettingsChange, settingsReady })
+  useConversationSettingsPersistence({ conversations, onSettingsChange, settings, settingsReady })
 
   return {
     activeId, addConversation, archiveConversation, closeConversation, conversations, deleteConversation, forkConversation,

product-source/hololake-platform/src/lib/aiWorkspaceSessionStore.test.ts

@@ -178,4 +178,28 @@ describe('aiWorkspaceSessionStore', () => {
       expect(store.aiWorkspaceSessionSnapshot('native-chat').messages).toHaveLength(1)
     })
   })
+
+  it('does not rewrite native history when hydration only reads it', async () => {
+    isTauriState.value = true
+    invokeMock.mockImplementation(async (command: string) => {
+      if (command === 'get_ai_workspace_sessions') {
+        return {
+          'native-chat': {
+            messages: [{ userMessage: 'Native', actions: [], response: 'History', id: 'native-message' }],
+            status: 'done',
+          },
+        }
+      }
+      return undefined
+    })
+
+    const store = await import('./aiWorkspaceSessionStore')
+
+    await vi.waitFor(() => {
+      expect(store.aiWorkspaceSessionSnapshot('native-chat').messages).toHaveLength(1)
+    })
+    await new Promise(resolve => setTimeout(resolve, 300))
+
+    expect(invokeMock).not.toHaveBeenCalledWith('save_ai_workspace_sessions', expect.anything())
+  })
 })

product-source/hololake-platform/src/lib/aiWorkspaceSessionStore.ts

@@ -160,7 +160,6 @@ async function syncFromNativeStorage(): Promise<void> {
   const mergedSessions = mergeStoredSessions(sessionStore.getSnapshot(), nativeSessions)
   sessionStore.replaceSnapshot(mergedSessions)
   sessionStore.writeStoredSnapshot(mergedSessions)
-  if (Object.keys(mergedSessions).length > 0) scheduleNativeSessionsWrite(mergedSessions)
 }
 
 function ensureSessionStoreSync(): void {