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.

test/privileges.e2e-spec.ts

@@ -45,9 +45,7 @@ describe('Privileges (e2e)', () => {
       .post('/auth/register')
       .send({ username: adminUsername, password })
       .expect(201);
-    adminAccessToken = (
-      adminReg.body as { accessToken: string }
-    ).accessToken;
+    adminAccessToken = (adminReg.body as { accessToken: string }).accessToken;
 
     const adminMe = await request(app.getHttpServer())
       .get('/auth/me')
@@ -63,9 +61,7 @@ describe('Privileges (e2e)', () => {
       .post('/auth/register')
       .send({ username: otherUsername, password })
       .expect(201);
-    otherAccessToken = (
-      otherReg.body as { accessToken: string }
-    ).accessToken;
+    otherAccessToken = (otherReg.body as { accessToken: string }).accessToken;
     const otherMe = await request(app.getHttpServer())
       .get('/auth/me')
       .set('Authorization', `Bearer ${otherAccessToken}`)