fix: persist guest/redemption activation context to DB to survive Redis TTL expiry (Bug 1 + Bug 10)

- Add `activation_context` TEXT column to `order` table (migration 02150)
- purchaseLogic: write TemporaryOrderInfo JSON to order.ActivationContext in the same
  insert transaction; Redis write is now best-effort (non-fatal)
- redeemCodeLogic: write redemption {type, redemption_code_id, unit_time, quantity} JSON
  to order.ActivationContext at order creation; Redis write is now best-effort (non-fatal)
- getTempOrderInfo: on Redis miss, fall back to order.ActivationContext from DB;
  logs CRITICAL and returns error if both are missing (old orders with no DB record)
- RedemptionActivate: on Redis miss, fall back to order.ActivationContext from DB;
  same CRITICAL log path for legacy orders

Co-authored-by: multica-agent <github@multica.ai>

internal/logic/public/portal/purchaseLogic.go

@@ -154,9 +154,12 @@ func (l *PurchaseLogic) Purchase(req *types.PortalPurchaseRequest) (resp *types.
 		}
 		content, _ := tempOrder.Marshal()
 
-		if _, err = l.svcCtx.Redis.Set(l.ctx, fmt.Sprintf(constant.TempOrderCacheKey, orderInfo.OrderNo), string(content), CloseOrderTimeMinutes*time.Minute).Result(); err != nil {
-			l.Errorw("[Purchase] Redis set error", logger.Field("error", err.Error()), logger.Field("order_no", orderInfo.OrderNo))
-			return err
+		// Persist activation context to DB so the worker can recover if Redis TTL expires.
+		orderInfo.ActivationContext = string(content)
+
+		// Write to Redis as a hot cache (best-effort; non-fatal on failure).
+		if _, redisErr := l.svcCtx.Redis.Set(l.ctx, fmt.Sprintf(constant.TempOrderCacheKey, orderInfo.OrderNo), string(content), CloseOrderTimeMinutes*time.Minute).Result(); redisErr != nil {
+			l.Infow("[Purchase] Redis set error (non-fatal, DB fallback available)", logger.Field("error", redisErr.Error()), logger.Field("order_no", orderInfo.OrderNo))
 		}
 		l.Infow("[Purchase] Guest order", logger.Field("order_no", orderInfo.OrderNo), logger.Field("identifier", req.Identifier))
 
@@ -169,7 +172,7 @@ func (l *PurchaseLogic) Purchase(req *types.PortalPurchaseRequest) (resp *types.
 			}
 		}
 
-		// save guest order
+		// save guest order (activation_context is included)
 		if err = l.svcCtx.OrderModel.Insert(l.ctx, orderInfo, tx); err != nil {
 			return err
 		}

internal/logic/public/redemption/redeemCodeLogic.go

@@ -151,34 +151,48 @@ func (l *RedeemCodeLogic) RedeemCode(req *types.RedeemCodeRequest) (resp *types.
 	}
 
 	// 创建Order记录
+	redemptionContext := struct {
+		Type             string `json:"type"`
+		RedemptionCodeId int64  `json:"redemption_code_id"`
+		UnitTime         string `json:"unit_time"`
+		Quantity         int64  `json:"quantity"`
+	}{
+		Type:             "redemption",
+		RedemptionCodeId: redemptionCode.Id,
+		UnitTime:         redemptionCode.UnitTime,
+		Quantity:         redemptionCode.Quantity,
+	}
+	activationContextJSON, _ := json.Marshal(redemptionContext)
+
 	orderInfo := &order.Order{
-		UserId:         u.Id,
-		OrderNo:        tool.GenerateTradeNo(),
-		Type:           5, // 兑换类型
-		Quantity:       redemptionCode.Quantity,
-		Price:          0, // 兑换无价格
-		Amount:         0, // 兑换无金额
-		Discount:       0,
-		GiftAmount:     0,
-		Coupon:         "",
-		CouponDiscount: 0,
-		PaymentId:      0,
-		Method:         "redemption",
-		FeeAmount:      0,
-		Commission:     0,
-		Status:         2, // 直接设置为已支付
-		SubscribeId:    redemptionCode.SubscribePlan,
-		IsNew:          isNew,
+		UserId:            u.Id,
+		OrderNo:           tool.GenerateTradeNo(),
+		Type:              5, // 兑换类型
+		Quantity:          redemptionCode.Quantity,
+		Price:             0, // 兑换无价格
+		Amount:            0, // 兑换无金额
+		Discount:          0,
+		GiftAmount:        0,
+		Coupon:            "",
+		CouponDiscount:    0,
+		PaymentId:         0,
+		Method:            "redemption",
+		FeeAmount:         0,
+		Commission:        0,
+		Status:            2, // 直接设置为已支付
+		SubscribeId:       redemptionCode.SubscribePlan,
+		IsNew:             isNew,
+		ActivationContext: string(activationContextJSON),
 	}
 
-	// 保存Order到数据库
+	// 保存Order到数据库（activation_context 同步写入，作为 Redis 的持久化兜底）
 	err = l.svcCtx.OrderModel.Insert(l.ctx, orderInfo)
 	if err != nil {
 		l.Errorw("[RedeemCode] Create order failed", logger.Field("error", err.Error()))
 		return nil, errors.Wrapf(xerr.NewErrCode(xerr.DatabaseInsertError), "create order failed")
 	}
 
-	// 缓存兑换码信息到Redis（供队列任务使用）
+	// 缓存兑换码信息到Redis（热缓存，供队列任务快速读取，非关键路径）
 	cacheKey := fmt.Sprintf("redemption_order:%s", orderInfo.OrderNo)
 	cacheData := map[string]interface{}{
 		"redemption_code_id": redemptionCode.Id,
@@ -186,16 +200,8 @@ func (l *RedeemCodeLogic) RedeemCode(req *types.RedeemCodeRequest) (resp *types.
 		"quantity":           redemptionCode.Quantity,
 	}
 	jsonData, _ := json.Marshal(cacheData)
-	err = l.svcCtx.Redis.Set(l.ctx, cacheKey, jsonData, 2*time.Hour).Err()
-	if err != nil {
-		l.Errorw("[RedeemCode] Cache redemption data failed", logger.Field("error", err.Error()))
-		// 缓存失败，删除已创建的Order避免孤儿记录
-		if delErr := l.svcCtx.OrderModel.Delete(l.ctx, orderInfo.Id); delErr != nil {
-			l.Errorw("[RedeemCode] Delete order failed after cache error",
-				logger.Field("order_id", orderInfo.Id),
-				logger.Field("error", delErr.Error()))
-		}
-		return nil, errors.Wrapf(xerr.NewErrCode(xerr.ERROR), "cache redemption data failed")
+	if redisErr := l.svcCtx.Redis.Set(l.ctx, cacheKey, jsonData, 2*time.Hour).Err(); redisErr != nil {
+		l.Infow("[RedeemCode] Cache redemption data failed (non-fatal, DB fallback available)", logger.Field("error", redisErr.Error()))
 	}
 
 	// 触发队列任务