Add user and employee management enhancements with database schema updates

- Introduced new columns `status`, `created_by`, and `updated_by` in the `users` table to track user status and ownership.
- Updated the `employees` table to include a foreign key reference to the `users` table via `user_id`.
- Created migration script `0012_users_primary.sql` to apply these changes to the database schema.
- Enhanced the `EmployeesService` and `EmployeesRepository` to support user assignments and related data retrieval.
- Updated DTOs and service methods to reflect the new user and employee relationships.
- Added unit tests to validate the new functionality and ensure data integrity.
- Modified existing controllers to accommodate the new fields and relationships in user and employee management.

src/modules/configuration/employees/employees.repository.spec.ts

@@ -42,8 +42,11 @@ describe('EmployeesRepository', () => {
     updatedAt: 1_700_000_000_000,
     createdBy: 'user-1',
     updatedBy: 'user-1',
+    userId: null,
   };
 
+  const joinedRow = { employee: row, user: null };
+
   const createInput = {
     code: 'EMP_01',
     name: 'Ada Lovelace',
@@ -114,14 +117,14 @@ describe('EmployeesRepository', () => {
       .mockImplementationOnce(() => ({
         from: () => ({
           $dynamic: () => ({
-            where: () => ({
-              orderBy: () => ({
-                limit: () => ({
-                  offset: () => Promise.resolve([row]),
+              where: () => ({
+                orderBy: () => ({
+                  limit: () => ({
+                    offset: () => Promise.resolve([row]),
+                  }),
                 }),
               }),
             }),
-          }),
         }),
       }));