ADR1-3 on routes + db files

src/routes/admin.users.routes.test.ts

@@ -166,7 +166,7 @@ describe('Admin User Management Routes (/api/admin/users)', () => {
     it('should prevent an admin from deleting their own account', async () => {
       const response = await supertest(app).delete(`/api/admin/users/${adminUser.user_id}`);
       expect(response.status).toBe(400);
-      expect(response.body.message).toBe('Admins cannot delete their own account.');
+      expect(response.body.message).toBe('Admins cannot delete their own account.'); // This is now handled by the errorHandler
       expect(mockedDb.userRepo.deleteUserById).not.toHaveBeenCalled();
     });
   });