Refactor code structure and dependencies

- Remove unused files and modules
- Update submodule URL for epess-database
- Update DATABASE_URL in compose.yaml
- Update CI workflow to fetch submodules during checkout and fix GITHUB_TOKEN issue
- Enable strict mode in tsconfig.json
- Add UsersService and UsersResolver in users module
- Remove AppService and AppController
- Update main.ts to remove unused imports and log statement
- Add PrismaModule and PrismaService
- Add PrismaContextMiddleware
- Update GraphQL module to use schema and PrismaService
- Update package.json dependencies and devDependencies

src/graphql/graphql.module.ts

@@ -1,48 +1,18 @@
 import { Module } from '@nestjs/common';
 import { GraphQLModule } from '@nestjs/graphql';
 import { ApolloDriver, ApolloDriverConfig } from '@nestjs/apollo';
-
-const subOperationHandler = (message: any, params: any, webSocket: any) => {
-  console.log('onOperation');
-  return params;
-};
+import { PrismaService } from '../prisma/prisma.service';
+import { schema } from './schema';
 @Module({
   imports: [
     GraphQLModule.forRoot<ApolloDriverConfig>({
-      driver: ApolloDriver, // Specify the driver
-      buildSchemaOptions: {
-        numberScalarMode: 'integer',
-      },
-      subscriptions: {
-        'subscriptions-transport-ws': {
-          keepAlive: 5000,
-          path: '/graphql-sub',
-          onOperation: (message: any, params: any, webSocket: any) => {
-            subOperationHandler(message, params, webSocket);
-            return params;
-          },
-          onConnect: (connectionParams: any, webSocket: any) => {
-            console.log('onConnect');
-            return connectionParams;
-          },
-          onDisconnect: (webSocket: any) => {
-            console.log('onDisconnect');
-          },
-        },
-      },
-      playground: {
-        workspaceName: 'EPESS',
-        tabs: [
-          {
-            endpoint: '/graphql',
-            query: `# Welcome to the EPESS GraphQL API
-          `,
-          },
-        ],
-      },
-      introspection: true,
+      driver: ApolloDriver,
+      schema: schema,
       debug: true,
+      allowBatchedHttpRequests: true,
+      introspection: true,
     }),
   ],
+  providers: [PrismaService],
 })
 export class GraphqlModule {}