[Bug]: system comments are hidden from GitLab MRs

Before submitting

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

Area

apps/server

Steps to reproduce

1. Open GitLab MR
2. Have someone approve MR
3. Nothing is shown in t3code

Expected behavior

Ideally t3 would show approval status so we can easily see which MRs are approved but since that seems like a much larger feature, I'd like to have system-level notes exposed in at least the timeline but better also in the comments view as well. This will show assignment changes, pushes, approvals, rejections, etc.

Actual behavior

The timeline is synthetic and doesn't show all of the things that GitLab shows. The comments section shows no comments. This is a deal breaker because I have no idea in t3 if the MR is approved and if I should attempt to merge it which means I need to open all of my MRs in the browser.

Impact

Major degradation or frequent failure

Version or commit

0.0.39-nightly.20260904.1280

Environment

Windows + Remote SSH running Linux

Logs or stack traces

Screenshots, recordings, or supporting files

No response

Workaround

No response

Start in apps/server and trace how GitLab merge request timelines and comments are fetched and filtered. Reproduce the approval scenario, then verify that system-level notes such as approvals, pushes, assignments, and rejections appear in the timeline or comments view alongside regular comments.