fix: 后端修复passkey注册时challenge不匹配

apps/backend/src/auth/dto/passkey-register.dto.ts

@@ -1,7 +1,9 @@
-import { IsString } from "class-validator";
+import { IsObject, IsString } from "class-validator";
 
 export class PasskeyRegisterDto {
+    @IsObject()
     credentialResponse: any;
+
     @IsString({ message: '通行证名称只能是字符串' })
     name: string;
 }