task: 完成支付宝C端入口

新增支付宝支付方式支持：
- DTO：ClientPaymentLink、ClientPayOrderRequest/Response 增加 alipay；ClientCreateOrderRequest 增加 payment_method；ClientCreateOrderResponse 增加 payment_link；ClientCreateRechargeRequest 允许 alipay，app_type 改为微信必填；ClientRechargeResponse PayConfig 改为可选指针，增加 payment_link
- Service（client_order）：PayOrder 新增 alipay 分支（不需要 app_type/OpenID，复用或新建 pending payment，生成 WAP URL）；CreateOrder 强充路径按 payment_method 分支，alipay 不需要 app_type/OpenID；幂等命中时支付宝强充返回同一充值单对应的 payment_link；新增 getOrBuildAlipayPaymentLink（过期 payment 自动续建）；新增 createAlipayForceRechargeOrder（事务创建充值单+支付单，WAP URL 生成失败则标记 failed）
- Handler（client_wallet）：CreateRecharge 移除微信唯一限制，按 payment_method 分发到 createWechatRecharge / createAlipayRecharge；alipay 分支事务内创建充值单+支付单，然后生成 WAP URL，失败标记 payment failed
- 依赖 worker-1 共享 API：pkg/alipay.BuildWapPayURL/CalcExpireAt、Payment.ExpireAt、WechatConfig.AliReturnURL/AliPayExpireMinutes、PaymentStore.FindLatestPendingByOrderAndMethod；本 worktree 暂不能独立构建，待 leader 集成

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

internal/handler/app/client_wallet.go

@@ -15,6 +15,7 @@ import (
 	rechargeSvc "github.com/break/junhong_cmp_fiber/internal/service/recharge"
 	wechatConfigSvc "github.com/break/junhong_cmp_fiber/internal/service/wechat_config"
 	"github.com/break/junhong_cmp_fiber/internal/store/postgres"
+	"github.com/break/junhong_cmp_fiber/pkg/alipay"
 	"github.com/break/junhong_cmp_fiber/pkg/constants"
 	"github.com/break/junhong_cmp_fiber/pkg/errors"
 	"github.com/break/junhong_cmp_fiber/pkg/fuiou"
@@ -262,10 +263,6 @@ func (h *ClientWalletHandler) CreateRecharge(c *fiber.Ctx) error {
 		return errors.New(errors.CodeInvalidParam)
 	}
 
-	if req.PaymentMethod != constants.RechargeMethodWechat {
-		return errors.New(errors.CodeInvalidParam)
-	}
-
 	resolved, err := h.resolveAssetFromIdentifier(c, req.Identifier)
 	if err != nil {
 		return err
@@ -289,6 +286,23 @@ func (h *ClientWalletHandler) CreateRecharge(c *fiber.Ctx) error {
 		return errors.New(errors.CodeWechatConfigUnavailable)
 	}
 
+	switch req.PaymentMethod {
+	case constants.RechargeMethodAlipay:
+		return h.createAlipayRecharge(c, resolved, config, wallet, req)
+	default:
+		// 微信充值（默认）：app_type 必填
+		return h.createWechatRecharge(c, resolved, config, wallet, req)
+	}
+}
+
+// createWechatRecharge 微信充值分支
+func (h *ClientWalletHandler) createWechatRecharge(
+	c *fiber.Ctx,
+	resolved *resolvedWalletAssetContext,
+	config *model.WechatConfig,
+	wallet *model.AssetWallet,
+	req dto.ClientCreateRechargeRequest,
+) error {
 	appID, err := pickAppIDByType(config, req.AppType)
 	if err != nil {
 		return err
@@ -350,17 +364,99 @@ func (h *ClientWalletHandler) CreateRecharge(c *fiber.Ctx) error {
 		return errors.Wrap(errors.CodeDatabaseError, err, "创建支付记录失败")
 	}
 
-	resp := &dto.ClientRechargeResponse{
+	return response.Success(c, &dto.ClientRechargeResponse{
 		Recharge: dto.ClientRechargeResult{
 			RechargeID: rechargeOrder.ID,
 			RechargeNo: rechargeOrder.RechargeOrderNo,
 			Amount:     rechargeOrder.Amount,
 			Status:     rechargeOrder.Status,
 		},
-		PayConfig: payConfig,
+		PayConfig: &payConfig,
+	})
+}
+
+// createAlipayRecharge 支付宝充值分支。
+// WAP URL 为本地签名生成，事务内先写 DB，再生成链接；链接失败则标记 payment failed。
+func (h *ClientWalletHandler) createAlipayRecharge(
+	c *fiber.Ctx,
+	resolved *resolvedWalletAssetContext,
+	config *model.WechatConfig,
+	wallet *model.AssetWallet,
+	req dto.ClientCreateRechargeRequest,
+) error {
+	rechargeNo := generateClientRechargeNo()
+	paymentNo := generateClientPaymentNo()
+	expireAt := alipay.CalcExpireAt(config)
+
+	rechargeOrder := &model.RechargeOrder{
+		RechargeOrderNo: rechargeNo,
+		UserID:          resolved.CustomerID,
+		AssetWalletID:   wallet.ID,
+		ResourceType:    resolved.ResourceType,
+		ResourceID:      resolved.Asset.AssetID,
+		Amount:          req.Amount,
+		Status:          model.RechargeOrderStatusPending,
+		PaymentConfigID: &config.ID,
+		ShopIDTag:       wallet.ShopIDTag,
+		EnterpriseIDTag: wallet.EnterpriseIDTag,
+		OperatorType:    constants.OperatorTypePersonalCustomer,
+		Generation:      resolved.Generation,
+	}
+	payment := &model.Payment{
+		PaymentNo:       paymentNo,
+		OrderType:       model.PaymentOrderTypeRecharge,
+		PaymentMethod:   model.PaymentByAlipay,
+		Amount:          req.Amount,
+		Status:          model.PaymentRecordStatusPending,
+		PaymentConfigID: &config.ID,
+		ExpireAt:        &expireAt,
 	}
 
-	return response.Success(c, resp)
+	// WAP URL 是本地签名，不需要先调第三方，在事务内创建充值单和支付单
+	if err := h.db.WithContext(resolved.SkipPermissionCtx).Transaction(func(tx *gorm.DB) error {
+		if err := h.rechargeOrderStore.CreateWithTx(resolved.SkipPermissionCtx, tx, rechargeOrder); err != nil {
+			return errors.Wrap(errors.CodeDatabaseError, err, "创建充值订单失败")
+		}
+		payment.OrderID = rechargeOrder.ID
+		return h.paymentStore.CreateWithTx(resolved.SkipPermissionCtx, tx, payment)
+	}); err != nil {
+		return err
+	}
+
+	wapURL, err := alipay.BuildWapPayURL(resolved.SkipPermissionCtx, config, payment, "资产钱包充值", config.AliReturnURL)
+	if err != nil {
+		if updateErr := h.paymentStore.UpdateStatus(resolved.SkipPermissionCtx, payment.ID, model.PaymentRecordStatusFailed); updateErr != nil {
+			h.logger.Warn("标记支付宝支付单 failed 失败",
+				zap.String("payment_no", paymentNo),
+				zap.Error(updateErr),
+			)
+		}
+		return err
+	}
+
+	h.logger.Info("支付宝充值支付单已创建",
+		zap.String("payment_no", paymentNo),
+		zap.String("recharge_no", rechargeNo),
+		zap.Int64("amount", req.Amount),
+		zap.Time("expire_at", expireAt),
+		zap.Uint("config_id", config.ID),
+	)
+
+	expireStr := expireAt.Format(time.RFC3339)
+	return response.Success(c, &dto.ClientRechargeResponse{
+		Recharge: dto.ClientRechargeResult{
+			RechargeID: rechargeOrder.ID,
+			RechargeNo: rechargeOrder.RechargeOrderNo,
+			Amount:     rechargeOrder.Amount,
+			Status:     rechargeOrder.Status,
+		},
+		PaymentLink: &dto.ClientPaymentLink{
+			PaymentNo:   paymentNo,
+			QRLink:      wapURL,
+			CopyLink:    wapURL,
+			PayExpireAt: expireStr,
+		},
+	})
 }
 
 // GetRechargeList C5 充值记录列表