Add unit tests for models and services

- Implemented unit tests for the Package model, covering methods such as generateId, findById, findByName, and version management.
- Created unit tests for the Repository model, including repository creation, name validation, and retrieval methods.
- Added tests for the Session model, focusing on session creation, validation, and invalidation.
- Developed unit tests for the User model, ensuring user creation, password hashing, and retrieval methods function correctly.
- Implemented AuthService tests, validating login, token refresh, and session management.
- Added TokenService tests, covering token creation, validation, and revocation processes.

test/helpers/index.ts

@@ -0,0 +1,85 @@
+/**
+ * Test helpers index - re-exports all helper modules
+ */
+
+// Database helpers
+export {
+  setupTestDb,
+  cleanupTestDb,
+  teardownTestDb,
+  clearCollections,
+  getTestDbName,
+  getTestDb,
+} from './db.helper.ts';
+
+// Auth helpers
+export {
+  createTestUser,
+  createAdminUser,
+  loginUser,
+  createTestApiToken,
+  createAuthHeader,
+  createBasicAuthHeader,
+  getTestPassword,
+  type ICreateTestUserOptions,
+  type ICreateTestApiTokenOptions,
+} from './auth.helper.ts';
+
+// Factory helpers
+export {
+  createTestOrganization,
+  createOrgWithOwner,
+  addOrgMember,
+  createTestRepository,
+  createTestTeam,
+  addTeamMember,
+  grantRepoPermission,
+  createTestPackage,
+  createFullTestScenario,
+  type ICreateTestOrganizationOptions,
+  type ICreateTestRepositoryOptions,
+  type ICreateTestTeamOptions,
+  type IGrantRepoPermissionOptions,
+  type ICreateTestPackageOptions,
+} from './factory.helper.ts';
+
+// HTTP helpers
+export {
+  testRequest,
+  get,
+  post,
+  put,
+  patch,
+  del,
+  assertStatus,
+  assertBodyHas,
+  assertSuccess,
+  assertError,
+  type ITestRequest,
+  type ITestResponse,
+} from './http.helper.ts';
+
+// Subprocess helpers
+export {
+  runCommand,
+  commandExists,
+  clients,
+  skipIfMissing,
+  type ICommandResult,
+  type ICommandOptions,
+} from './subprocess.helper.ts';
+
+// Storage helpers
+export {
+  setupTestStorage,
+  checkStorageAvailable,
+  objectExists,
+  listObjects,
+  deleteObject,
+  deletePrefix,
+  cleanupTestStorage,
+  isStorageAvailable,
+} from './storage.helper.ts';
+
+// Re-export test config
+export { testConfig, getTestConfig } from '../test.config.ts';