[Bug]: Last message renders through the composer footer, overlapping the workspace bar #30048

Before submitting

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

Area

apps/web

Steps to reproduce

1. Open a thread on a remote workspace (here ai-box, local checkout, branch chore/step-1-risk-spikes).
2. Send a prompt that makes the agent reply with a message ending in a bullet list (here a list of file paths).
3. Let the turn finish and scroll to the bottom of the thread.

Expected behavior

The thread's last message stays fully above the composer. The scroll area should have enough bottom padding so that the end of the last message never sits under the composer or its footer.

Actual behavior

The last lines of the message render underneath the composer and show through its footer. The two last bullets overlap the ai-box | Local checkout workspace bar and the branch name. The message is also cut: Worked for 15s is drawn above the composer while the bullets of the same message are drawn below it.

Impact

Cosmetic issue

Version or commit

Desktop app, current build as of 2026-11-03.

Environment

macOS 26.6.2, T3 Code desktop app, Claude provider (Opus 5.5 Medium), remote workspace ai-box.