refactor(server): auth/oauth (#3242)

* refactor(server): auth/oauth

* fix: show server error message on login failure

server/src/domain/auth/dto/oauth-config.dto.ts

@@ -0,0 +1,9 @@
+import { ApiProperty } from '@nestjs/swagger';
+import { IsNotEmpty, IsString } from 'class-validator';
+
+export class OAuthConfigDto {
+  @IsNotEmpty()
+  @IsString()
+  @ApiProperty()
+  redirectUri!: string;
+}