feat(appleIAP): 实现苹果应用内购买通知处理逻辑

添加苹果IAP通知处理功能，包括解析和验证JWS签名、处理交易状态变更
新增订单号字段用于关联订单处理
实现交易记录的创建和更新逻辑
处理订阅状态的变更和过期时间计算

internal/handler/notify/appleIAPNotifyHandler.go

@@ -2,12 +2,21 @@ package notify
 
 import (
 	"github.com/gin-gonic/gin"
+	"io"
+	"encoding/json"
+	"github.com/perfect-panel/server/internal/logic/notify"
 	"github.com/perfect-panel/server/internal/svc"
 	"github.com/perfect-panel/server/pkg/result"
 )
 
 func AppleIAPNotifyHandler(svcCtx *svc.ServiceContext) func(c *gin.Context) {
 	return func(c *gin.Context) {
-		result.HttpResult(c, map[string]bool{"success": true}, nil)
+		raw, _ := io.ReadAll(c.Request.Body)
+		var body map[string]interface{}
+		_ = json.Unmarshal(raw, &body)
+		sp, _ := body["signedPayload"].(string)
+		l := notify.NewAppleIAPNotifyLogic(c.Request.Context(), svcCtx)
+		err := l.Handle(sp)
+		result.HttpResult(c, map[string]bool{"success": err == nil}, err)
 	}
 }