删除钱包充值功能并消除重复入账风险

钱包充值为开发态测试功能(生产环境本就禁用),且支付回调存在重复入账风险:入账与标记 paid 两步非原子、wallet_ledger 去重无唯一索引、幂等键使用了可变的 ProviderOrderID。直接删除该功能从根本上消除风险。

后端:
- payment 移除 StartWalletRecharge/QueryWalletRecharge 及相关 handler/DTO/常量;confirmPaid 增加 OrderID 守卫;解除对 wallet 仓库的依赖
- wallet 移除 Recharge/ConfirmRechargeFromChannel 及相关定义
- 移除三条充值路由;adminfinance 财务统计口径只统计 order_pay
- 清理充值相关测试用例

前端:
- 移除充值 API、WalletView 充值面板/弹窗、admin 充值标签与筛选
- 保留钱包余额、流水、提现等核心能力

go build/vet 与 vue-tsc typecheck 均通过。

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

backend/internal/modules/payment/service.go

@@ -3,35 +3,23 @@ package payment
 import (
 	"context"
 	"errors"
-	"strings"
 )
 
 var (
-	ErrDependencyUnavailable  = errors.New("dependency unavailable")
-	ErrPaymentUnavailable     = errors.New("payment unavailable")
-	ErrPaymentCannotStart     = errors.New("payment cannot start")
-	ErrPaymentVerifyFailed    = errors.New("payment verify failed")
-	ErrPaymentNotFound        = errors.New("payment not found")
-	ErrRefundCannotStart      = errors.New("refund cannot start")
-	ErrWalletRechargeDisabled = errors.New("wallet recharge disabled")
+	ErrDependencyUnavailable = errors.New("dependency unavailable")
+	ErrPaymentUnavailable    = errors.New("payment unavailable")
+	ErrPaymentCannotStart    = errors.New("payment cannot start")
+	ErrPaymentVerifyFailed   = errors.New("payment verify failed")
+	ErrPaymentNotFound       = errors.New("payment not found")
+	ErrRefundCannotStart     = errors.New("refund cannot start")
 )
 
-const MinWalletRechargeAmount = 0.01
-
 type Service struct {
-	repo                  *Repository
-	walletRechargeEnabled bool
+	repo *Repository
 }
 
-func NewService(repo *Repository, appEnv ...string) *Service {
-	env := "production"
-	if len(appEnv) > 0 {
-		env = strings.ToLower(strings.TrimSpace(appEnv[0]))
-	}
-	return &Service{
-		repo:                  repo,
-		walletRechargeEnabled: env != "production",
-	}
+func NewService(repo *Repository) *Service {
+	return &Service{repo: repo}
 }
 
 func (s *Service) Start(ctx context.Context, userID uint64, orderID uint64, req StartPaymentRequest, clientIP string) (*PaymentDTO, error) {
@@ -54,26 +42,6 @@ func (s *Service) Query(ctx context.Context, userID uint64, orderID uint64) (*Pa
 	return s.repo.Query(ctx, userID, orderID)
 }
 
-func (s *Service) StartWalletRecharge(ctx context.Context, userID uint64, req WalletRechargePaymentRequest, clientIP string) (*PaymentDTO, error) {
-	if s.repo == nil {
-		return nil, ErrDependencyUnavailable
-	}
-	if !s.walletRechargeEnabled {
-		return nil, ErrWalletRechargeDisabled
-	}
-	return s.repo.StartWalletRecharge(ctx, userID, req, clientIP)
-}
-
-func (s *Service) QueryWalletRecharge(ctx context.Context, userID uint64, paymentID uint64) (*PaymentDTO, error) {
-	if s.repo == nil {
-		return nil, ErrDependencyUnavailable
-	}
-	if userID == 0 || paymentID == 0 {
-		return nil, ErrPaymentNotFound
-	}
-	return s.repo.QueryWalletRecharge(ctx, userID, paymentID)
-}
-
 func (s *Service) HandleLeshuaNotify(ctx context.Context, params map[string]string, rawPayload string, contentType string) (*NotifyResult, error) {
 	if s.repo == nil {
 		return nil, ErrDependencyUnavailable