Add Pothos-generated User GraphQL schema and resolver

This commit adds the Pothos-generated User GraphQL schema and resolver. The schema is defined in the `src/graphql/graphql.schema.ts` file, and the resolver is defined in the `src/graphql/graphql.resolver.ts` file. The schema includes the `User` object type with fields for `id`, `name`, and `email`. The resolver includes a query field `users` that resolves to fetch all users from the Prisma database.

src/graphql/graphql.module.ts

@@ -1,8 +1,26 @@
 import { Module } from '@nestjs/common';
-import { GraphqlService } from './graphql.service';
-import { GraphqlResolver } from './graphql.resolver';
+import { GraphQLModule } from '@nestjs/graphql';
+import { ApolloDriver, ApolloDriverConfig } from '@nestjs/apollo';
+import { schema } from './graphql.schema'; // Assuming you have schema defined in a separate file
 
 @Module({
-  providers: [GraphqlService, GraphqlResolver],
+  imports: [
+    GraphQLModule.forRoot<ApolloDriverConfig>({
+      driver: ApolloDriver, // Specify the driver
+      schema, // Your Pothos-generated schema
+      playground: {
+        workspaceName: 'EPESS',
+        tabs: [
+          {
+            endpoint: '/graphql',
+            query: `# Welcome to the EPESS GraphQL API
+          `,
+          },
+        ],
+      },
+      introspection: true,
+      debug: true,
+    }),
+  ],
 })
 export class GraphqlModule {}