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/global.d.ts

@@ -1,6 +1,7 @@
 declare namespace Express {
   interface Request {
     session?: import('./core/auth/session').Session;
+    token?: import('./core/auth/session').TokenSession;
   }
 }