修改部署端口为 16025

- Flask 服务端口: 16025
- Docker 端口映射: 16025:16025
- systemd 服务配置更新
- 测试脚本端口更新
- 文档示例更新

web-capture-api.service

@@ -6,7 +6,7 @@ After=network.target
 Type=simple
 User=openclaw
 WorkingDirectory=/home/openclaw/.openclaw/workspace-hz4th_coder/works/web-capture-api
-ExecStart=/home/openclaw/.openclaw/workspace-hz4th_coder/works/web-capture-api/venv/bin/gunicorn -w 4 -b 0.0.0.0:5000 app:app
+ExecStart=/home/openclaw/.openclaw/workspace-hz4th_coder/works/web-capture-api/venv/bin/gunicorn -w 4 -b 0.0.0.0:16025 app:app
 Restart=always
 RestartSec=10