[Bug]: Source Control settings fails to discover and display all configured GitLab hosts #27811

Before submitting

• I searched existing issues and did not find a duplicate.
• I included enough detail to reproduce or investigate the problem.

Area

apps/desktop

Steps to reproduce

1. Authenticate glab with multiple GitLab hosts on the machine running the T3 app.
2. Run glab auth status --all to confirm the hosts.
3. Open Settings → Source Control and rescan.

Expected behavior

Each configured GitLab host appears under GitLab with its authentication status. A failed login on one host shouldn't hide working hosts.

Actual behavior

Settings doesn't display the configured host list, it only displays the host set as default via the glab cli.

Impact

Cosmetic issue

Version or commit

0.1.5 (6d450a4)

Environment

macOS 26.7.2

Logs or stack traces

Screenshots, recordings, or supporting files

No response

Workaround

No response