feat: print session resume and fork commands on exit

src/tui/main.tsx

@@ -73,10 +73,13 @@ const renderer = await createCliRenderer({ exitOnCtrlC: false, targetFps: 30, au
 // OpenTUI 默认透明背景不会擦除变空的 cell，滚动/重排后会残留上一帧字符。
 renderer.setBackgroundColor(batonTheme.overlayBackground ?? "#24283b");
 const root = createRoot(renderer);
-const quit = () => {
+const quit = (sessionId?: string) => {
   // OpenTUI owns raw mode and mouse tracking; restore both before process.exit,
   // whose forced exit does not run OpenTUI's beforeExit cleanup handler.
   renderer.destroy();
+  if (sessionId) {
+    console.log(`\nResume this session with:\nbaton resume ${sessionId}\n\nFork this session with:\nbaton fork ${sessionId}`);
+  }
   process.exit(0);
 };
 

src/tui/protocol.ts

@@ -106,7 +106,7 @@ export class BatonChatProtocol implements ChatProtocol {
     private readonly store: SessionStore,
     private readonly config: BatonConfig,
     opened: { session: SessionHandle; resumed: boolean; recovered?: boolean },
-    private readonly quit: () => void,
+    private readonly quit: (sessionId?: string) => void,
   ) {
     this.session = opened.session;
     this.agent = config.defaultAgent;
@@ -256,7 +256,7 @@ export class BatonChatProtocol implements ChatProtocol {
     await this.runtime.close();
     this.unsubscribeSession();
     this.session.releaseLock();
-    this.quit();
+    this.quit(this.session.id);
   }
 
   resolvePicker(id: string, value: string | null): void {
@@ -492,7 +492,7 @@ export class BatonChatProtocol implements ChatProtocol {
           }
         : null,
       status: this.status,
-      footer: `in:${v.usage.inputTokens} out:${v.usage.outputTokens}  turns:${v.turnSummaries.length}  queue:${this.runtime.queueLength}${planActive ? `  plan:${planEntries.filter((entry) => entry.status === "completed").length}/${planEntries.length}` : ""}  cwd:${this.session.meta.cwd}`,
+      footer: `session:${this.session.id}  in:${v.usage.inputTokens} out:${v.usage.outputTokens}  turns:${v.turnSummaries.length}  queue:${this.runtime.queueLength}${planActive ? `  plan:${planEntries.filter((entry) => entry.status === "completed").length}/${planEntries.length}` : ""}  cwd:${this.session.meta.cwd}`,
       // ↑ 召回提示只在"可召回"时出现：交互发生地是 composer（placeholder 天然只在空输入时可见）
       // busy 且可 steer 时提示 Enter 的实际语义（design §3.2：delivery 对用户可见、可预期）
       composerPlaceholder: `Message ${this.agent} (/ commands, @ mentions, ${

tests/tui-protocol.test.ts

@@ -15,8 +15,8 @@ describe("BatonChatProtocol exit", () => {
       const store = new SessionStore(root);
       const session = store.createSession({ cwd: "/repo" });
       const calls: string[] = [];
-      const protocol = new BatonChatProtocol(store, DEFAULT_CONFIG, { session, resumed: false }, () => {
-        calls.push("quit");
+      const protocol = new BatonChatProtocol(store, DEFAULT_CONFIG, { session, resumed: false }, (sessionId) => {
+        calls.push(`quit:${sessionId}`);
       });
 
       const internals = protocol as unknown as {
@@ -31,7 +31,7 @@ describe("BatonChatProtocol exit", () => {
       };
 
       await protocol.exit();
-      expect(calls).toEqual(["runtime", "lock", "quit"]);
+      expect(calls).toEqual(["runtime", "lock", `quit:${session.id}`]);
     } finally {
       rmSync(root, { recursive: true, force: true });
     }
@@ -138,6 +138,7 @@ describe("BatonChatProtocol view projection", () => {
       expect(view.runStatus?.[0]).toMatchObject({ author: "codex", label: "default" });
       expect(view.runStatus?.[0]?.startedAt).toBeUndefined();
       expect(view.runStatus?.[0]?.hint).toBeUndefined();
+      expect(view.footer).toStartWith(`session:${session.id}  `);
       expect(view.composerPlaceholder).toContain("Ctrl+J newline");
       await protocol.exit();
     } finally {