feat: rewrite auth (#364)

* feat: wip rewrite auth

* feat: restructure folders and fix stories and tests

* feat: remove auth provider and fix tests

server/src/core/auth/dto/challenge.input.ts

@@ -1,10 +1,14 @@
+import { ArgsType, Field } from '@nestjs/graphql';
 import { IsEmail, IsNotEmpty, IsString } from 'class-validator';
 
+@ArgsType()
 export class ChallengeInput {
+  @Field(() => String)
   @IsNotEmpty()
   @IsEmail()
   email: string;
 
+  @Field(() => String)
   @IsNotEmpty()
   @IsString()
   password: string;