fix: harden agent prompt handling

qimingclaw/crates/agent-electron-client/src/main/services/engines/acp/acpEngine.test.ts

@@ -296,6 +296,40 @@ describe("AcpEngine.prompt", () => {
     const event = onPromptEnd.mock.calls.at(-1)?.[0];
     expect(event.reason).toBe("mcp_reconnecting");
   });
+
+  it("qimingcode prompt 长时间无响应时结束会话等待", async () => {
+    const { engine, sessionId, session, acpConnection } =
+      setupEngine("qimingcode");
+    const onPromptEnd = vi.fn();
+    const onSessionError = vi.fn();
+    engine.on("computer:promptEnd", onPromptEnd);
+    engine.on("session.error", onSessionError);
+
+    acpConnection.prompt.mockReturnValueOnce(new Promise(() => {}));
+
+    vi.useFakeTimers();
+    const promptPromise = engine.prompt(
+      sessionId,
+      [{ type: "text", text: "hi" }],
+      { messageID: "rid-timeout-001" },
+    );
+
+    await vi.advanceTimersByTimeAsync(60_001);
+    await expect(promptPromise).resolves.toBeDefined();
+
+    expect(onPromptEnd).toHaveBeenCalledTimes(1);
+    expect(onPromptEnd.mock.calls[0][0]).toMatchObject({
+      sessionId,
+      reason: "error",
+    });
+    expect(onPromptEnd.mock.calls[0][0].description).toContain(
+      "ACP prompt timed out",
+    );
+    expect(onSessionError).toHaveBeenCalledTimes(1);
+    expect(session.status).toBe("idle");
+    expect((engine as any).activePromptSessions.has(sessionId)).toBe(false);
+    expect((engine as any).activePromptRejects.has(sessionId)).toBe(false);
+  });
 });
 
 describe("AcpEngine.handleAcpSessionUpdate", () => {