Re-implement authentication (#136)

* Remove hasura and hasura-auth

* Implement authentication

server/src/app.module.ts

@@ -3,9 +3,17 @@ import { AppController } from './app.controller';
 import { AppService } from './app.service';
 import { HealthController } from './health.controller';
 import { TerminusModule } from '@nestjs/terminus';
+
+import { AuthModule } from './auth/auth.module';
+import { ConfigModule } from '@nestjs/config';
 import { ApiModule } from './api/api.module';
 @Module({
-  imports: [TerminusModule, ApiModule],
+  imports: [
+    ConfigModule.forRoot({}),
+    TerminusModule,
+    AuthModule,
+    ApiModule,
+  ],
   controllers: [AppController, HealthController],
   providers: [AppService],
 })