feat(支付): 新增Apple IAP支付支持

实现Apple应用内购支付功能，包括：
1. 新增AppleIAP和ApplePay支付平台枚举
2. 添加IAP验证接口/v1/public/iap/verify处理初购验证
3. 实现Apple服务器通知处理逻辑/v1/iap/notifications
4. 新增JWS验签和JWKS公钥缓存功能
5. 复用现有订单系统处理IAP支付订单

相关文档已更新，包含接入方案和实现细节

internal/model/order/default.go

@@ -12,23 +12,25 @@ import (
 
 var _ Model = (*customOrderModel)(nil)
 var (
-	cacheOrderIdPrefix = "cache:order:id:"
-	cacheOrderNoPrefix = "cache:order:no:"
+    cacheOrderIdPrefix = "cache:order:id:"
+    cacheOrderNoPrefix = "cache:order:no:"
+    cacheOrderTradePrefix = "cache:order:trade:"
 )
 
 type (
-	Model interface {
-		orderModel
-		customOrderLogicModel
-	}
-	orderModel interface {
-		Insert(ctx context.Context, data *Order, tx ...*gorm.DB) error
-		FindOne(ctx context.Context, id int64) (*Order, error)
-		FindOneByOrderNo(ctx context.Context, orderNo string) (*Order, error)
-		Update(ctx context.Context, data *Order, tx ...*gorm.DB) error
-		Delete(ctx context.Context, id int64, tx ...*gorm.DB) error
-		Transaction(ctx context.Context, fn func(db *gorm.DB) error) error
-	}
+    Model interface {
+        orderModel
+        customOrderLogicModel
+    }
+    orderModel interface {
+        Insert(ctx context.Context, data *Order, tx ...*gorm.DB) error
+        FindOne(ctx context.Context, id int64) (*Order, error)
+        FindOneByOrderNo(ctx context.Context, orderNo string) (*Order, error)
+        FindOneByTradeNo(ctx context.Context, tradeNo string) (*Order, error)
+        Update(ctx context.Context, data *Order, tx ...*gorm.DB) error
+        Delete(ctx context.Context, id int64, tx ...*gorm.DB) error
+        Transaction(ctx context.Context, fn func(db *gorm.DB) error) error
+    }
 
 	customOrderModel struct {
 		*defaultOrderModel
@@ -60,12 +62,14 @@ func (m *defaultOrderModel) getCacheKeys(data *Order) []string {
 		return []string{}
 	}
 	orderIdKey := fmt.Sprintf("%s%v", cacheOrderIdPrefix, data.Id)
-	orderNoKey := fmt.Sprintf("%s%v", cacheOrderNoPrefix, data.OrderNo)
-	cacheKeys := []string{
-		orderIdKey,
-		orderNoKey,
-	}
-	return cacheKeys
+    orderNoKey := fmt.Sprintf("%s%v", cacheOrderNoPrefix, data.OrderNo)
+    tradeNoKey := fmt.Sprintf("%s%v", cacheOrderTradePrefix, data.TradeNo)
+    cacheKeys := []string{
+        orderIdKey,
+        orderNoKey,
+        tradeNoKey,
+    }
+    return cacheKeys
 }
 
 func (m *defaultOrderModel) Insert(ctx context.Context, data *Order, tx ...*gorm.DB) error {
@@ -106,6 +110,20 @@ func (m *defaultOrderModel) FindOneByOrderNo(ctx context.Context, orderNo string
 	}
 }
 
+func (m *defaultOrderModel) FindOneByTradeNo(ctx context.Context, tradeNo string) (*Order, error) {
+    OrderTradeKey := fmt.Sprintf("%s%v", cacheOrderTradePrefix, tradeNo)
+    var resp Order
+    err := m.QueryCtx(ctx, &resp, OrderTradeKey, func(conn *gorm.DB, v interface{}) error {
+        return conn.Model(&Order{}).Where("`trade_no` = ?", tradeNo).First(&resp).Error
+    })
+    switch {
+    case err == nil:
+        return &resp, nil
+    default:
+        return nil, err
+    }
+}
+
 func (m *defaultOrderModel) Update(ctx context.Context, data *Order, tx ...*gorm.DB) error {
 	old, err := m.FindOne(ctx, data.Id)
 	if err != nil && !errors.Is(err, gorm.ErrRecordNotFound) {