主动监控系统状态。定期检查服务器健康，主动汇报，无需等待指令。
Initial release of auto-monitor: proactive system status monitoring and reporting. - Periodically checks disk, memory, CPU, network, and process status. - Automatically generates health reports and sends alerts when thresholds are exceeded. - Alerts triggered for disk usage >80%, memory >85%, or CPU load > (cores × 0.8). - Proactively reports issues without waiting for user inquiries. - Supports immediate auto-remediation for fixable problems.