[WIP] Fix unit and integration tests for Keycloak functionality (#23)

* Initial plan

* Remove duplicate JSDoc comment block in Jwt.ts

Co-authored-by: jkyberneees <4096860+jkyberneees@users.noreply.github.com>

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: jkyberneees <4096860+jkyberneees@users.noreply.github.com>

Author: Copilot

libs/Jwt.ts

@@ -71,14 +71,6 @@ export class Jwt {
     return new Token(accessToken);
   }
 
-  /**
-   * Online verification that performs a Keycloak server `userinfo` call
-   * to make sure the token is still valid on the server-side. If the
-   * call completes successfully the token is accepted and returned as a
-   * `Token` wrapper for callers to inspect claims.
-   * @param accessToken - The JWT string to verify via Keycloak server
-   * @returns A Promise resolving to a `Token` instance when userinfo succeeds
-   */
   /**
    * Online verification that performs a Keycloak server `userinfo` call
    * to make sure the token is still valid on the server-side. If the