[Bug]: 现象1：对话框输入一次，会显示两个重复的内容 现象2：agent和subagent运行中网关超时无法启动，需要退出openclaw重启才能恢复

[2026-04-02T09:28:59.898Z] [ERROR] Port 18789 still occupied after 30000ms; aborting startup to avoid port conflict
[2026-04-02T09:28:59.898Z] [ERROR] Gateway start failed (port=18789, reconnectAttempts=0, spawn=n/a) Port 18789 still occupied after 30000ms
Error: Port 18789 still occupied after 30000ms
    at Fs (D:\install\ClawX\resources\app.asar\dist-electron\main\index.js:22:3349)
    at async Object.waitForPortFree (D:\install\ClawX\resources\app.asar\dist-electron\main\index.js:92:11224)
    at async xd (D:\install\ClawX\resources\app.asar\dist-electron\main\index.js:92:7080)
    at async qe.start (D:\install\ClawX\resources\app.asar\dist-electron\main\index.js:92:10639)
    at async Timeout._onTimeout (D:\install\ClawX\resources\app.asar\dist-electron\main\index.js:92:24145)
[2026-04-02T09:28:59.898Z] [ERROR] Gateway reconnection attempt failed: Port 18789 still occupied after 30000ms
Error: Port 18789 still occupied after 30000ms
    at Fs (D:\install\ClawX\resources\app.asar\dist-electron\main\index.js:22:3349)
    at async Object.waitForPortFree (D:\install\ClawX\resources\app.asar\dist-electron\main\index.js:92:11224)
    at async xd (D:\install\ClawX\resources\app.asar\dist-electron\main\index.js:92:7080)
    at async qe.start (D:\install\ClawX\resources\app.asar\dist-electron\main\index.js:92:10639)
    at async Timeout._onTimeout (D:\install\ClawX\resources\app.asar\dist-electron\main\index.js:92:24145)
[2026-04-02T09:28:59.898Z] [INFO ] [metric] gateway.reconnect {
  "outcome": "failure",
  "attemptNo": 1,
  "maxAttempts": 10,
  "delayMs": 1000,
  "gateway_reconnect_success_count": 0,
  "gateway_reconnect_attempt_count": 3,
  "gateway_reconnect_success_rate": 0,
  "error": "Port 18789 still occupied after 30000ms"
}
[2026-04-02T09:28:59.898Z] [WARN ] Scheduling Gateway reconnect attempt 1/10 in 1000ms
[2026-04-02T09:29:00.909Z] [INFO ] Gateway start requested (port=18789)
[2026-04-02T09:29:03.212Z] [INFO ] Waiting for port 18789 to become available (Windows TCP TIME_WAIT)...
[2026-04-02T09:29:33.439Z] [ERROR] Port 18789 still occupied after 30000ms; aborting startup to avoid port conflict
[2026-04-02T09:29:33.440Z] [WARN ] Transient start error: Error: Port 18789 still occupied after 30000ms. Retrying... (1/3)
[2026-04-02T09:29:36.642Z] [INFO ] Waiting for port 18789 to become available (Windows TCP TIME_WAIT)...
[2026-04-02T09:30:06.835Z] [ERROR] Port 18789 still occupied after 30000ms; aborting startup to avoid port conflict
[2026-04-02T09:30:06.835Z] [WARN ] Transient start error: Error: Port 18789 still occupied after 30000ms. Retrying... (2/3)
[2026-04-02T09:30:10.084Z] [INFO ] Waiting for port 18789 to become available (Windows TCP TIME_WAIT)...
[2026-04-02T09:30:40.298Z] [ERROR] Port 18789 still occupied after 30000ms; aborting startup to avoid port conflict
[2026-04-02T09:30:40.298Z] [ERROR] Gateway start failed (port=18789, reconnectAttempts=0, spawn=n/a) Port 18789 still occupied after 30000ms
Error: Port 18789 still occupied after 30000ms
    at Fs (D:\install\ClawX\resources\app.asar\dist-electron\main\index.js:22:3349)
    at async Object.waitForPortFree (D:\install\ClawX\resources\app.asar\dist-electron\main\index.js:92:11224)
    at async xd (D:\install\ClawX\resources\app.asar\dist-electron\main\index.js:92:7080)
    at async qe.start (D:\install\ClawX\resources\app.asar\dist-electron\main\index.js:92:10639)
    at async Timeout._onTimeout (D:\install\ClawX\resources\app.asar\dist-electron\main\index.js:92:24145)
[2026-04-02T09:30:40.298Z] [ERROR] Gateway reconnection attempt failed: Port 18789 still occupied after 30000ms
Error: Port 18789 still occupied after 30000ms