feat(v2): /api/v2 网关路由 + handler(下单/查/重试/取消/回调)+ main 装配 gateway/notifier

main.go

@@ -11,9 +11,14 @@ import (
 	"gorm.io/gorm/logger"
 
 	"github.com/wangjia/pay/config"
+	"github.com/wangjia/pay/internal/accounts"
 	"github.com/wangjia/pay/internal/channel"
+	"github.com/wangjia/pay/internal/gateway"
 	"github.com/wangjia/pay/internal/model"
+	"github.com/wangjia/pay/internal/provider"
 	"github.com/wangjia/pay/internal/router"
+	"github.com/wangjia/pay/internal/store"
+	"github.com/wangjia/pay/internal/webhook"
 )
 
 func main() {
@@ -32,6 +37,24 @@ func main() {
 
 	orderSvc := router.Setup(r, db, reg)
 
+	// v2 统一网关装配(P2):provider 注册表 + gateway + webhook notifier。
+	pReg := provider.NewRegistry()
+	// P3 起在此 Register 真实渠道:crypto / alipay / stripe …(fake 仅测试用,不注册进生产)。
+	orderStore := store.NewOrderStore(db)
+	webhookStore := store.NewWebhookStore(db)
+	notifier := webhook.NewNotifier(webhookStore, config.C.BizByName, func(no string) (bool, error) {
+		o, err := orderStore.GetOrder(no) // 投递门禁:订单已付才发(enqueue-before-flip 不变量)
+		if err != nil {
+			return false, err
+		}
+		return o.Status == model.OrderPaidV2, nil
+	})
+	notifier.Start(60 * time.Second)
+	productResolver := gateway.NewDBProductResolver(db, "CNY") // 币种按部署区配(cn=CNY / global=USDT)
+	acctReg := accounts.New(config.C.Accounts)
+	gw := gateway.New(orderStore, pReg, acctReg, productResolver, notifier, "cn")
+	router.SetupV2(r, gw)
+
 	if config.C.QuerySync.Enabled {
 		orderSvc.StartQuerySync(
 			time.Duration(config.C.QuerySync.IntervalSec)*time.Second,
@@ -80,7 +103,7 @@ func autoMigrate(db *gorm.DB) {
 		&model.Order{},
 		&model.NotifyLog{},
 		&model.BizNotifyLog{},
-		&model.OrderV2{}, &model.Attempt{}, &model.Account{}, &model.Refund{}, // v2
+		&model.OrderV2{}, &model.Attempt{}, &model.Account{}, &model.Refund{}, &model.WebhookDelivery{}, // v2
 	); err != nil {
 		log.Fatalf("自动迁移失败: %v", err)
 	}