feat: 实现客户端换货系统（client-exchange-system）

新增完整换货生命周期管理：后台发起 → 客户端填收货信息 → 后台发货 → 确认完成（含可选全量迁移） → 旧资产转新再销售

后台接口（7个）：
- POST /api/admin/exchanges（发起换货）
- GET /api/admin/exchanges（换货列表）
- GET /api/admin/exchanges/:id（换货详情）
- POST /api/admin/exchanges/:id/ship（发货）
- POST /api/admin/exchanges/:id/complete（确认完成+可选迁移）
- POST /api/admin/exchanges/:id/cancel（取消）
- POST /api/admin/exchanges/:id/renew（旧资产转新）

客户端接口（2个）：
- GET /api/c/v1/exchange/pending（查询换货通知）
- POST /api/c/v1/exchange/:id/shipping-info（填写收货信息）

核心能力：
- ExchangeOrder 模型与状态机（1待填写→2待发货→3已发货→4已完成，1/2可取消→5）
- 全量迁移事务（11张表：钱包、套餐、标签、客户绑定等）
- 旧资产转新（generation+1、状态重置、新钱包、历史隔离）
- 旧 CardReplacementRecord 表改名为 legacy，is_replaced 过滤改为查新表
- 数据库迁移：000085 新建 tb_exchange_order，000086 旧表改名

internal/bootstrap/handlers.go

@@ -5,11 +5,41 @@ import (
 	"github.com/break/junhong_cmp_fiber/internal/handler/app"
 	authHandler "github.com/break/junhong_cmp_fiber/internal/handler/auth"
 	"github.com/break/junhong_cmp_fiber/internal/handler/callback"
+	clientOrderSvc "github.com/break/junhong_cmp_fiber/internal/service/client_order"
+	"github.com/break/junhong_cmp_fiber/internal/store/postgres"
 	"github.com/go-playground/validator/v10"
 )
 
 func initHandlers(svc *services, deps *Dependencies) *Handlers {
 	validate := validator.New()
+	personalCustomerDeviceStore := postgres.NewPersonalCustomerDeviceStore(deps.DB)
+	assetWalletStore := postgres.NewAssetWalletStore(deps.DB, deps.Redis)
+	packageStore := postgres.NewPackageStore(deps.DB)
+	shopPackageAllocationStore := postgres.NewShopPackageAllocationStore(deps.DB)
+	iotCardStore := postgres.NewIotCardStore(deps.DB, deps.Redis)
+	deviceStore := postgres.NewDeviceStore(deps.DB, deps.Redis)
+	assetWalletTransactionStore := postgres.NewAssetWalletTransactionStore(deps.DB, deps.Redis)
+	assetRechargeStore := postgres.NewAssetRechargeStore(deps.DB, deps.Redis)
+	personalCustomerOpenIDStore := postgres.NewPersonalCustomerOpenIDStore(deps.DB)
+	orderStore := postgres.NewOrderStore(deps.DB, deps.Redis)
+	packageSeriesStore := postgres.NewPackageSeriesStore(deps.DB)
+	shopSeriesAllocationStore := postgres.NewShopSeriesAllocationStore(deps.DB)
+	deviceSimBindingStore := postgres.NewDeviceSimBindingStore(deps.DB, deps.Redis)
+	carrierStore := postgres.NewCarrierStore(deps.DB)
+	clientOrderService := clientOrderSvc.New(
+		svc.Asset,
+		svc.PurchaseValidation,
+		orderStore,
+		assetRechargeStore,
+		assetWalletStore,
+		personalCustomerDeviceStore,
+		personalCustomerOpenIDStore,
+		svc.WechatConfig,
+		packageSeriesStore,
+		shopSeriesAllocationStore,
+		deps.Redis,
+		deps.Logger,
+	)
 
 	return &Handlers{
 		Auth:                        authHandler.NewHandler(svc.Auth, validate),
@@ -18,6 +48,12 @@ func initHandlers(svc *services, deps *Dependencies) *Handlers {
 		Permission:                  admin.NewPermissionHandler(svc.Permission),
 		PersonalCustomer:            app.NewPersonalCustomerHandler(svc.PersonalCustomer, deps.Logger),
 		ClientAuth:                  app.NewClientAuthHandler(svc.ClientAuth, deps.Logger),
+		ClientAsset:                 app.NewClientAssetHandler(svc.Asset, personalCustomerDeviceStore, assetWalletStore, packageStore, shopPackageAllocationStore, iotCardStore, deviceStore, deps.DB, deps.Logger),
+		ClientWallet:                app.NewClientWalletHandler(svc.Asset, personalCustomerDeviceStore, assetWalletStore, assetWalletTransactionStore, assetRechargeStore, svc.Recharge, personalCustomerOpenIDStore, svc.WechatConfig, deps.Redis, deps.Logger, deps.DB, iotCardStore, deviceStore),
+		ClientOrder:                 app.NewClientOrderHandler(clientOrderService, svc.Asset, orderStore, personalCustomerDeviceStore, iotCardStore, deviceStore, deps.Logger, deps.DB),
+		ClientExchange:              app.NewClientExchangeHandler(svc.Exchange),
+		ClientRealname:              app.NewClientRealnameHandler(svc.Asset, personalCustomerDeviceStore, iotCardStore, deviceSimBindingStore, carrierStore, deps.GatewayClient, deps.Logger),
+		ClientDevice:                app.NewClientDeviceHandler(svc.Asset, personalCustomerDeviceStore, deviceStore, deviceSimBindingStore, iotCardStore, deps.GatewayClient, deps.Logger),
 		Shop:                        admin.NewShopHandler(svc.Shop),
 		ShopRole:                    admin.NewShopRoleHandler(svc.Shop),
 		AdminAuth:                   admin.NewAuthHandler(svc.Auth, validate),
@@ -43,6 +79,7 @@ func initHandlers(svc *services, deps *Dependencies) *Handlers {
 		ShopPackageBatchPricing:     admin.NewShopPackageBatchPricingHandler(svc.ShopPackageBatchPricing),
 		ShopSeriesGrant:             admin.NewShopSeriesGrantHandler(svc.ShopSeriesGrant),
 		AdminOrder:                  admin.NewOrderHandler(svc.Order, validate),
+		AdminExchange:               admin.NewExchangeHandler(svc.Exchange, validate),
 		PaymentCallback:             callback.NewPaymentHandler(svc.Order, svc.Recharge, svc.AgentRecharge, deps.WechatPayment),
 		PollingConfig:               admin.NewPollingConfigHandler(svc.PollingConfig),
 		PollingConcurrency:          admin.NewPollingConcurrencyHandler(svc.PollingConcurrency),