修复(#51): 修正封禁用户订阅返回码

封禁用户拉订阅时返回纯文本 500 退化为业务码 20004,统一走 result.HttpResult。覆盖 /api/subscribe 和泛域名两条入口,补回归测试。

internal/handler/subscribe.go

@@ -9,6 +9,7 @@ import (
 	"github.com/perfect-panel/server/internal/svc"
 	"github.com/perfect-panel/server/internal/types"
 	"github.com/perfect-panel/server/pkg/logger"
+	"github.com/perfect-panel/server/pkg/result"
 	"github.com/perfect-panel/server/pkg/tool"
 )
 
@@ -84,7 +85,7 @@ func SubscribeHandler(svcCtx *svc.ServiceContext) func(c *gin.Context) {
 		l := subscribe.NewSubscribeLogic(c, svcCtx)
 		resp, err := l.Handler(&req)
 		if err != nil {
-			c.String(http.StatusInternalServerError, "Internal Server")
+			result.HttpResult(c, nil, err)
 			return
 		}
 		c.Header("subscription-userinfo", resp.Header)