refactor(server): auth service (#1383)

* refactor: auth

* chore: tests

* Remove await on non-async method

* refactor: constants

* chore: remove extra async

Co-authored-by: Alex Tran <alex.tran1502@gmail.com>

server/libs/domain/test/crypto.repository.mock.ts

@@ -5,5 +5,7 @@ export const newCryptoRepositoryMock = (): jest.Mocked<ICryptoRepository> => {
     randomBytes: jest.fn().mockReturnValue(Buffer.from('random-bytes', 'utf8')),
     compareSync: jest.fn().mockReturnValue(true),
     hash: jest.fn().mockImplementation((input) => Promise.resolve(`${input} (hashed)`)),
+    signJwt: jest.fn().mockReturnValue('signed-jwt'),
+    verifyJwtAsync: jest.fn().mockResolvedValue({ userId: 'test', email: 'test' }),
   };
 };