✨ feat: Add topup billing history with admin manual completion

Implement comprehensive topup billing system with user history viewing and admin management capabilities.

## Features Added

### Frontend
- Add topup history modal with paginated billing records
- Display order details: trade number, payment method, amount, money, status, create time
- Implement empty state with proper illustrations
- Add payment method column with localized display (Stripe, Alipay, WeChat)
- Add admin manual completion feature for pending orders
- Add Coins icon for recharge amount display
- Integrate "Bills" button in RechargeCard header
- Optimize code quality by using shared utility functions (isAdmin)
- Extract constants for status and payment method mappings
- Use React.useMemo for performance optimization

### Backend
- Create GET `/api/user/topup/self` endpoint for user topup history with pagination
- Create POST `/api/user/topup/complete` endpoint for admin manual order completion
- Add `payment_method` field to TopUp model for tracking payment types
- Implement `GetUserTopUps` method with proper pagination and ordering
- Implement `ManualCompleteTopUp` with transaction safety and row-level locking
- Add application-level mutex locks to prevent concurrent order processing
- Record payment method in Epay and Stripe payment flows
- Ensure idempotency and data consistency with proper error handling

### Internationalization
- Add i18n keys for Chinese (zh), English (en), and French (fr)
- Support for billing-related UI text and status messages

## Technical Improvements
- Use database transactions with FOR UPDATE row-level locking
- Implement sync.Map-based mutex for order-level concurrency control
- Proper error handling and user-friendly toast notifications
- Follow existing codebase patterns for empty states and modals
- Maintain code quality with extracted render functions and constants

## Files Changed
- Backend: controller/topup.go, controller/topup_stripe.go, model/topup.go, router/api-router.go
- Frontend: web/src/components/topup/modals/TopupHistoryModal.jsx (new), web/src/components/topup/RechargeCard.jsx, web/src/components/topup/index.jsx
- i18n: web/src/i18n/locales/{zh,en,fr}.json

model/topup.go

@@ -6,18 +6,20 @@ import (
 	"one-api/common"
 	"one-api/logger"
 
+	"github.com/shopspring/decimal"
 	"gorm.io/gorm"
 )
 
 type TopUp struct {
-	Id           int     `json:"id"`
-	UserId       int     `json:"user_id" gorm:"index"`
-	Amount       int64   `json:"amount"`
-	Money        float64 `json:"money"`
-	TradeNo      string  `json:"trade_no" gorm:"unique;type:varchar(255);index"`
-	CreateTime   int64   `json:"create_time"`
-	CompleteTime int64   `json:"complete_time"`
-	Status       string  `json:"status"`
+	Id            int     `json:"id"`
+	UserId        int     `json:"user_id" gorm:"index"`
+	Amount        int64   `json:"amount"`
+	Money         float64 `json:"money"`
+	TradeNo       string  `json:"trade_no" gorm:"unique;type:varchar(255);index"`
+	PaymentMethod string  `json:"payment_method" gorm:"type:varchar(50)"`
+	CreateTime    int64   `json:"create_time"`
+	CompleteTime  int64   `json:"complete_time"`
+	Status        string  `json:"status"`
 }
 
 func (topUp *TopUp) Insert() error {
@@ -99,3 +101,109 @@ func Recharge(referenceId string, customerId string) (err error) {
 
 	return nil
 }
+
+func GetUserTopUps(userId int, pageInfo *common.PageInfo) (topups []*TopUp, total int64, err error) {
+	// Start transaction
+	tx := DB.Begin()
+	if tx.Error != nil {
+		return nil, 0, tx.Error
+	}
+	defer func() {
+		if r := recover(); r != nil {
+			tx.Rollback()
+		}
+	}()
+
+	// Get total count within transaction
+	err = tx.Model(&TopUp{}).Where("user_id = ?", userId).Count(&total).Error
+	if err != nil {
+		tx.Rollback()
+		return nil, 0, err
+	}
+
+	// Get paginated topups within same transaction
+	err = tx.Where("user_id = ?", userId).Order("id desc").Limit(pageInfo.GetPageSize()).Offset(pageInfo.GetStartIdx()).Find(&topups).Error
+	if err != nil {
+		tx.Rollback()
+		return nil, 0, err
+	}
+
+	// Commit transaction
+	if err = tx.Commit().Error; err != nil {
+		return nil, 0, err
+	}
+
+	return topups, total, nil
+}
+
+// ManualCompleteTopUp 管理员手动完成订单并给用户充值
+func ManualCompleteTopUp(tradeNo string) error {
+	if tradeNo == "" {
+		return errors.New("未提供订单号")
+	}
+
+	refCol := "`trade_no`"
+	if common.UsingPostgreSQL {
+		refCol = `"trade_no"`
+	}
+
+	var userId int
+	var quotaToAdd int
+	var payMoney float64
+
+	err := DB.Transaction(func(tx *gorm.DB) error {
+		topUp := &TopUp{}
+		// 行级锁，避免并发补单
+		if err := tx.Set("gorm:query_option", "FOR UPDATE").Where(refCol+" = ?", tradeNo).First(topUp).Error; err != nil {
+			return errors.New("充值订单不存在")
+		}
+
+		// 幂等处理：已成功直接返回
+		if topUp.Status == common.TopUpStatusSuccess {
+			return nil
+		}
+
+		if topUp.Status != common.TopUpStatusPending {
+			return errors.New("订单状态不是待支付，无法补单")
+		}
+
+		// 计算应充值额度：
+		// - Stripe 订单：Money 代表经分组倍率换算后的美元数量，直接 * QuotaPerUnit
+		// - 其他订单（如易支付）：Amount 为美元数量，* QuotaPerUnit
+		if topUp.PaymentMethod == "stripe" {
+			dQuotaPerUnit := decimal.NewFromFloat(common.QuotaPerUnit)
+			quotaToAdd = int(decimal.NewFromFloat(topUp.Money).Mul(dQuotaPerUnit).IntPart())
+		} else {
+			dAmount := decimal.NewFromInt(topUp.Amount)
+			dQuotaPerUnit := decimal.NewFromFloat(common.QuotaPerUnit)
+			quotaToAdd = int(dAmount.Mul(dQuotaPerUnit).IntPart())
+		}
+		if quotaToAdd <= 0 {
+			return errors.New("无效的充值额度")
+		}
+
+		// 标记完成
+		topUp.CompleteTime = common.GetTimestamp()
+		topUp.Status = common.TopUpStatusSuccess
+		if err := tx.Save(topUp).Error; err != nil {
+			return err
+		}
+
+		// 增加用户额度（立即写库，保持一致性）
+		if err := tx.Model(&User{}).Where("id = ?", topUp.UserId).Update("quota", gorm.Expr("quota + ?", quotaToAdd)).Error; err != nil {
+			return err
+		}
+
+		userId = topUp.UserId
+		payMoney = topUp.Money
+		return nil
+	})
+
+	if err != nil {
+		return err
+	}
+
+	// 事务外记录日志，避免阻塞
+	RecordLog(userId, LogTypeTopup, fmt.Sprintf("管理员补单成功，充值金额: %v，支付金额：%f", logger.FormatQuota(quotaToAdd), payMoney))
+	return nil
+}