收紧 DirectProject 回合完成判定

仅由 turn.completed 结束订阅恢复的运行态

调整终止回归测试以覆盖真实生命周期事件

apps/ai-game-creator-shell/src/App.tsx

@@ -6697,12 +6697,8 @@ export function App({
             }
           } finally {
             if (localProjectPathRef.current === directProjectPath) {
-              setDirectThreadChat((state) =>
-                state.turnRunning ? { ...state, turnRunning: false } : state,
-              );
               setChatAgentBusy(false);
               setDirectCodexTurnCancelling(false);
-              directTurnRunningRef.current = false;
               chatAgentBusyRef.current = false;
               // 本地 invoke 正常收尾仍可直接推进队列；恢复场景则由 turn.completed effect 推进。
               dispatchNextQueuedChatTurn();

apps/ai-game-creator-shell/tests/appSurface/chat-composer.suite.ts

@@ -574,6 +574,10 @@ export function registerChatComposerControlTests() {
     // app-server 的中断原因回到前端：不是失败，UI 必须回到可用态。
     act(() => {
       pending[0]?.reject(new Error('Codex app-server turn 已中断'));
+      harness.emitDirectThreadEvents({
+        type: 'turn.completed',
+        status: 'interrupted',
+      });
     });
     await waitFor(() => {
       const send = within(surface).getByRole('button', { name: '发送' });