feat: idle sleep for proxmox LXCs

internal/idlewatcher/common.go

@@ -0,0 +1,13 @@
+package idlewatcher
+
+import "context"
+
+func (w *Watcher) cancelled(reqCtx context.Context) bool {
+	select {
+	case <-reqCtx.Done():
+		w.l.Debug().AnErr("cause", context.Cause(reqCtx)).Msg("wake canceled")
+		return true
+	default:
+		return false
+	}
+}