实现 LightOps 运维面板基础功能

migrations/0007_alert_notification_details.sql

@@ -0,0 +1,5 @@
+ALTER TABLE alert_rules ADD COLUMN silence_until TEXT;
+ALTER TABLE alert_rules ADD COLUMN notify_recovery INTEGER NOT NULL DEFAULT 1;
+
+INSERT OR IGNORE INTO settings(key, value) VALUES
+('notifications.recovery_enabled', 'true');