fix: 停复机成功后上游状态滞后导致暂停轮询的卡到期或退款漏停

- 停复机成功后保护窗口内（polling.stop_resume.status_grace_seconds，默认 300 秒）查卡状态返回操作前的状态视为上游滞后，不回写网络状态
- 套餐到期、退款场景不看库里的开停状态，资产无可用主套餐即停机，上游已停时按已是目标状态结束
- 迁移 000257 插入保护窗口配置

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

internal/application/cardobservation/apply.go

@@ -78,6 +78,20 @@ type Service struct {
 	trafficCalc *TrafficCalcPolicy
 	// logger 记录快照写入失败等不影响观测结果的告警；未注入时不输出。
 	logger *zap.Logger
+	// commandGrace 返回停复机成功后的状态保护窗口；未注入时不保护。
+	commandGrace func(ctx context.Context) time.Duration
+}
+
+// SetCommandGrace 注入停复机成功后的状态保护窗口（受控系统配置 polling.stop_resume.status_grace_seconds）。
+func (s *Service) SetCommandGrace(grace func(ctx context.Context) time.Duration) {
+	s.commandGrace = grace
+}
+
+func (s *Service) currentCommandGrace(ctx context.Context) time.Duration {
+	if s == nil || s.commandGrace == nil {
+		return 0
+	}
+	return s.commandGrace(ctx)
 }
 
 // SetTrafficCalcPolicy 注入卡流量计量切换策略与告警日志。

internal/application/cardobservation/network.go

@@ -3,6 +3,7 @@ package cardobservation
 import (
 	"context"
 	"github.com/break/junhong_cmp_fiber/internal/infrastructure/pollingpause"
+	"go.uber.org/zap"
 	"strconv"
 	"time"
 
@@ -47,11 +48,17 @@ func (s *Service) ApplyNetworkObservation(ctx context.Context, observation domai
 		auditedCard = &card
 		nextDecision, decisionErr := domain.ApplyNetwork(domain.CardNetworkSnapshot{
 			CardID: card.ID, NetworkStatus: card.NetworkStatus, StopReason: card.StopReason,
-			EnablePolling: card.EnablePolling,
+			EnablePolling: card.EnablePolling, StoppedAt: card.StoppedAt, ResumedAt: card.ResumedAt,
+			CommandGrace: s.currentCommandGrace(ctx),
 		}, observation)
 		if decisionErr != nil {
 			return decisionErr
 		}
+		if nextDecision.StatusSuppressed {
+			s.warnLogger().Info("停复机成功后保护窗口内观测到相反状态，判定为上游状态滞后，不回写网络状态",
+				zap.Uint("card_id", card.ID), zap.Int("network_status", card.NetworkStatus),
+				zap.String("gateway_status", observation.GatewayStatus), zap.String("metric", "card_observation.network_suppressed"))
+		}
 		decision = nextDecision
 		updates := map[string]any{
 			"last_card_status_check_at": observation.Metadata.ObservedAt,