Re-implement authentication (#136)

* Remove hasura and hasura-auth

* Implement authentication

server/src/entities/refresh-token/refresh-token.repository.ts

@@ -0,0 +1,31 @@
+import { Injectable } from '@nestjs/common';
+import { Prisma, RefreshToken } from '@prisma/client';
+import { PrismaService } from 'src/database/prisma.service';
+
+@Injectable()
+export class RefreshTokenRepository {
+    constructor(private prisma: PrismaService) {}
+
+    async upsertRefreshToken(params: { data: Prisma.RefreshTokenUncheckedCreateInput}): Promise<RefreshToken> {
+        const { data } = params;
+  
+        return await this.prisma.refreshToken.upsert({
+            where: {
+                id: data.id,
+            },
+            create: {
+                id: data.id,
+                userId: data.userId,
+                refreshToken: data.refreshToken,
+              },
+              update: {
+              }
+        });
+      }
+
+      async findFirst(
+        data: Prisma.RefreshTokenFindFirstArgs,
+      ): Promise<RefreshToken | null> {
+        return await this.prisma.refreshToken.findFirst(data);
+      }
+}