feat: memory alerts with top-memory process, top offender in alerts, scheduled status reports

config.example.toml

@@ -10,6 +10,8 @@ access_token = ""
 [alert]
 # CPU 告警阈值(%)
 cpu_threshold = 85.0
+# 内存告警阈值(%)，设为 0 关闭内存告警
+memory_threshold = 90.0
 # 需要连续超过阈值多少个采样周期才告警
 consecutive = 2
 # 采样间隔(秒)
@@ -22,6 +24,16 @@ top_n = 5
 groups = [123456789]
 friends = []
 
+[report]
+# 定时推送状态报告
+enabled = false
+# 推送间隔(分钟)
+interval_minutes = 60
+# 推送目标（留空则用 [alert] 的目标）
+groups = []
+friends = []
+
+
 [update]
 # Git 热更新：定期检查远端是否有新版本，更新前先推送通知，再拉取并自动重启
 enabled = true