feat(server): support access token (#13372)

<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit

* **New Features**
* Introduced user access tokens, enabling users to generate, list, and
revoke personal access tokens via the GraphQL API.
* Added GraphQL mutations and queries for managing access tokens,
including token creation (with optional expiration), listing, and
revocation.
* Implemented authentication support for private API endpoints using
access tokens in addition to session cookies.

* **Bug Fixes**
  * None.

* **Tests**
* Added comprehensive tests for access token creation, listing,
revocation, expiration handling, and authentication using tokens.

* **Chores**
* Updated backend models, schema, and database migrations to support
access token functionality.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->

packages/backend/server/src/__tests__/auth/guard.spec.ts

@@ -96,6 +96,21 @@ test('should be able to visit private api if signed in', async t => {
   t.is(res.body.user.id, u1.id);
 });
 
+test('should be able to visit private api with access token', async t => {
+  const models = t.context.app.get(Models);
+  const token = await models.accessToken.create({
+    userId: u1.id,
+    name: 'test',
+  });
+
+  const res = await request(server)
+    .get('/private')
+    .set('Authorization', `Bearer ${token.token}`)
+    .expect(HttpStatus.OK);
+
+  t.is(res.body.user.id, u1.id);
+});
+
 test('should be able to parse session cookie', async t => {
   const spy = Sinon.spy(auth, 'getUserSession');
   await request(server)