refactor: 将 DTO 文件从 internal/model 移动到 internal/model/dto 目录

- 移动 17 个 DTO 文件到 internal/model/dto/ 目录
- 更新所有 DTO 文件的 package 声明从 model 改为 dto
- 更新所有引用文件的 import 和类型引用
  - Handler 层：admin 和 h5 所有处理器
  - Service 层：所有业务服务
  - Routes 层：所有路由定义
  - Tests 层：单元测试和集成测试
- 清理未使用的 import 语句
- 验证：项目构建成功，测试编译通过，LSP 无错误

internal/service/my_commission/service.go

@@ -8,6 +8,7 @@ import (
 	"time"
 
 	"github.com/break/junhong_cmp_fiber/internal/model"
+	"github.com/break/junhong_cmp_fiber/internal/model/dto"
 	"github.com/break/junhong_cmp_fiber/internal/store/postgres"
 	"github.com/break/junhong_cmp_fiber/pkg/constants"
 	"github.com/break/junhong_cmp_fiber/pkg/errors"
@@ -46,7 +47,7 @@ func New(
 }
 
 // GetCommissionSummary 获取我的佣金概览
-func (s *Service) GetCommissionSummary(ctx context.Context) (*model.MyCommissionSummaryResp, error) {
+func (s *Service) GetCommissionSummary(ctx context.Context) (*dto.MyCommissionSummaryResp, error) {
 	userType := middleware.GetUserTypeFromContext(ctx)
 	if userType != constants.UserTypeAgent {
 		return nil, errors.New(errors.CodeForbidden, "仅代理商用户可访问")
@@ -66,7 +67,7 @@ func (s *Service) GetCommissionSummary(ctx context.Context) (*model.MyCommission
 	wallet, err := s.walletStore.GetShopCommissionWallet(ctx, shopID)
 	if err != nil {
 		// 钱包不存在时返回空数据
-		return &model.MyCommissionSummaryResp{
+		return &dto.MyCommissionSummaryResp{
 			ShopID:   shopID,
 			ShopName: shop.ShopName,
 		}, nil
@@ -82,7 +83,7 @@ func (s *Service) GetCommissionSummary(ctx context.Context) (*model.MyCommission
 
 	totalCommission := wallet.Balance + wallet.FrozenBalance + totalWithdrawn
 
-	return &model.MyCommissionSummaryResp{
+	return &dto.MyCommissionSummaryResp{
 		ShopID:                shopID,
 		ShopName:              shop.ShopName,
 		TotalCommission:       totalCommission,
@@ -95,7 +96,7 @@ func (s *Service) GetCommissionSummary(ctx context.Context) (*model.MyCommission
 }
 
 // CreateWithdrawalRequest 发起提现申请
-func (s *Service) CreateWithdrawalRequest(ctx context.Context, req *model.CreateMyWithdrawalReq) (*model.CreateMyWithdrawalResp, error) {
+func (s *Service) CreateWithdrawalRequest(ctx context.Context, req *dto.CreateMyWithdrawalReq) (*dto.CreateMyWithdrawalResp, error) {
 	userType := middleware.GetUserTypeFromContext(ctx)
 	if userType != constants.UserTypeAgent {
 		return nil, errors.New(errors.CodeForbidden, "仅代理商用户可访问")
@@ -216,7 +217,7 @@ func (s *Service) CreateWithdrawalRequest(ctx context.Context, req *model.Create
 		return nil, err
 	}
 
-	return &model.CreateMyWithdrawalResp{
+	return &dto.CreateMyWithdrawalResp{
 		ID:           withdrawalRequest.ID,
 		WithdrawalNo: withdrawalRequest.WithdrawalNo,
 		Amount:       withdrawalRequest.Amount,
@@ -230,7 +231,7 @@ func (s *Service) CreateWithdrawalRequest(ctx context.Context, req *model.Create
 }
 
 // ListMyWithdrawalRequests 查询我的提现记录
-func (s *Service) ListMyWithdrawalRequests(ctx context.Context, req *model.MyWithdrawalListReq) (*model.WithdrawalRequestPageResult, error) {
+func (s *Service) ListMyWithdrawalRequests(ctx context.Context, req *dto.MyWithdrawalListReq) (*dto.WithdrawalRequestPageResult, error) {
 	userType := middleware.GetUserTypeFromContext(ctx)
 	if userType != constants.UserTypeAgent {
 		return nil, errors.New(errors.CodeForbidden, "仅代理商用户可访问")
@@ -274,12 +275,12 @@ func (s *Service) ListMyWithdrawalRequests(ctx context.Context, req *model.MyWit
 		return nil, fmt.Errorf("查询提现记录失败: %w", err)
 	}
 
-	items := make([]model.WithdrawalRequestItem, 0, len(requests))
+	items := make([]dto.WithdrawalRequestItem, 0, len(requests))
 	for _, r := range requests {
 		// 解析账户信息
 		accountName, accountNumber := parseAccountInfo(r.AccountInfo)
 
-		items = append(items, model.WithdrawalRequestItem{
+		items = append(items, dto.WithdrawalRequestItem{
 			ID:               r.ID,
 			WithdrawalNo:     r.WithdrawalNo,
 			ShopID:           r.ShopID,
@@ -296,7 +297,7 @@ func (s *Service) ListMyWithdrawalRequests(ctx context.Context, req *model.MyWit
 		})
 	}
 
-	return &model.WithdrawalRequestPageResult{
+	return &dto.WithdrawalRequestPageResult{
 		Items: items,
 		Total: total,
 		Page:  page,
@@ -305,7 +306,7 @@ func (s *Service) ListMyWithdrawalRequests(ctx context.Context, req *model.MyWit
 }
 
 // ListMyCommissionRecords 查询我的佣金明细
-func (s *Service) ListMyCommissionRecords(ctx context.Context, req *model.MyCommissionRecordListReq) (*model.MyCommissionRecordPageResult, error) {
+func (s *Service) ListMyCommissionRecords(ctx context.Context, req *dto.MyCommissionRecordListReq) (*dto.MyCommissionRecordPageResult, error) {
 	userType := middleware.GetUserTypeFromContext(ctx)
 	if userType != constants.UserTypeAgent {
 		return nil, errors.New(errors.CodeForbidden, "仅代理商用户可访问")
@@ -343,9 +344,9 @@ func (s *Service) ListMyCommissionRecords(ctx context.Context, req *model.MyComm
 		return nil, fmt.Errorf("查询佣金记录失败: %w", err)
 	}
 
-	items := make([]model.MyCommissionRecordItem, 0, len(records))
+	items := make([]dto.MyCommissionRecordItem, 0, len(records))
 	for _, r := range records {
-		items = append(items, model.MyCommissionRecordItem{
+		items = append(items, dto.MyCommissionRecordItem{
 			ID:             r.ID,
 			ShopID:         r.ShopID,
 			OrderID:        r.OrderID,
@@ -357,7 +358,7 @@ func (s *Service) ListMyCommissionRecords(ctx context.Context, req *model.MyComm
 		})
 	}
 
-	return &model.MyCommissionRecordPageResult{
+	return &dto.MyCommissionRecordPageResult{
 		Items: items,
 		Total: total,
 		Page:  page,