chore: stabilize lint and verify builds

backend/app/errorx/middleware.go

@@ -1,6 +1,10 @@
 package errorx
 
-import "github.com/gofiber/fiber/v3"
+import (
+	"errors"
+
+	"github.com/gofiber/fiber/v3"
+)
 
 // 全局实例
 var DefaultSender = NewResponseSender()
@@ -11,6 +15,7 @@ func Middleware(c fiber.Ctx) error {
 	if err != nil {
 		return DefaultSender.SendError(c, err)
 	}
+
 	return nil
 }
 
@@ -20,7 +25,8 @@ func Wrap(err error) *AppError {
 		return nil
 	}
 
-	if appErr, ok := err.(*AppError); ok {
+	var appErr *AppError
+	if errors.As(err, &appErr) {
 		return &AppError{
 			Code:        appErr.Code,
 			Message:     appErr.Message,