chore: update configuration and improve schema imports

- Updated biome.json to include "graphql.d.ts" in the ignored files list.
- Updated subproject commit reference in epess-database to the latest version.
- Removed unused script from package.json and streamlined module file extensions in tsconfig.json.
- Consolidated exclude patterns in tsconfig.build.json for clarity.
- Refactored imports across multiple schema files for consistency and improved readability.
- Enhanced various schema files by ensuring proper import order and removing redundant code.
- Improved error handling and data integrity checks in several service and schema files.

test/app.e2e-spec.ts

@@ -1,5 +1,5 @@
-import { Test, TestingModule } from '@nestjs/testing'
 import { INestApplication } from '@nestjs/common'
+import { Test, TestingModule } from '@nestjs/testing'
 import * as request from 'supertest'
 import { AppModule } from './../src/app.module'
 
@@ -16,9 +16,6 @@ describe('AppController (e2e)', () => {
   })
 
   it('/ (GET)', () => {
-    return request(app.getHttpServer())
-      .get('/')
-      .expect(200)
-      .expect('Hello World!')
+    return request(app.getHttpServer()).get('/').expect(200).expect('Hello World!')
   })
 })