Add divisions management module with database schema and validation

- Introduced `DivisionsModule` to manage organizational divisions, including read and write controllers.
- Created database migrations for the `divisions` table and related constraints.
- Implemented validation for division name and code with corresponding utility functions.
- Added service and repository layers for handling division data operations.
- Developed unit tests for the divisions service, repository, and controllers to ensure functionality and correctness.
- Updated application module to include the new `ConfigurationModule` for better organization.

src/app.module.ts

@@ -5,6 +5,7 @@ import { AppService } from './app.service';
 import loadEnv from './config/env';
 import { DatabaseModule } from './database/database.module';
 import { AuthModule } from './modules/auth/auth.module';
+import { ConfigurationModule } from './modules/configuration/configuration.module';
 import { PrivilegesModule } from './modules/privileges/privileges.module';
 import { UsersModule } from './modules/users/users.module';
 
@@ -18,6 +19,7 @@ import { UsersModule } from './modules/users/users.module';
     UsersModule,
     AuthModule,
     PrivilegesModule,
+    ConfigurationModule,
   ],
   controllers: [AppController],
   providers: [AppService],