chore: reformat schemas and documentation files for consistency

Standardized formatting across database schema files and updated documentation structure to improve clarity and organization.

backend/src/database/database.service.ts

@@ -15,8 +15,8 @@ import {
 import { ConfigService } from "@nestjs/config";
 import { drizzle } from "drizzle-orm/node-postgres";
 import { migrate } from "drizzle-orm/node-postgres/migrator";
-import * as schema from "./schemas";
 import { Pool } from "pg";
+import * as schema from "./schemas";
 
 @Injectable()
 export class DatabaseService implements OnModuleInit, OnModuleDestroy {