fix(operator): 有玩家在线时停服先在游戏里预告 30 秒，期间改回运行会取消

internal/apis/felis/v1alpha1/minecraftserver_types.go

@@ -342,6 +342,11 @@ type MinecraftServerStatus struct {
 	// or the server stops, so the empty-duration counter starts fresh each time
 	// the server becomes unoccupied.
 	EmptySince *metav1.Time `json:"emptySince,omitempty"`
+	// StopNoticeAt is when the operator told the players on a server that it is
+	// about to stop (desiredState flipped to Stopped with players online). The stop
+	// itself waits until StopNoticeWindow has passed since then; the stamp is cleared
+	// once the server is scaled down, or when desiredState goes back to Running first.
+	StopNoticeAt *metav1.Time `json:"stopNoticeAt,omitempty"`
 	// AutoRestarts counts how often the operator recreated the pod of a start
 	// that timed out (at most MaxAutoRestarts, with a doubling backoff); reaching Ready or
 	// stopping resets it.

internal/apis/felis/v1alpha1/zz_generated.deepcopy.go

@@ -121,6 +121,9 @@ func (in *MinecraftServerStatus) DeepCopyInto(out *MinecraftServerStatus) {
 	if in.EmptySince != nil {
 		out.EmptySince = in.EmptySince.DeepCopy()
 	}
+	if in.StopNoticeAt != nil {
+		out.StopNoticeAt = in.StopNoticeAt.DeepCopy()
+	}
 	if in.LastAutoRestartAt != nil {
 		out.LastAutoRestartAt = in.LastAutoRestartAt.DeepCopy()
 	}