refactor(web): timeline user message rows and context chips live in their own files (#22676)

Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
3e36c5e181Julius Marminge committed on 10/21/2026, 8:12:50 AM· committed by GitHubparent9e672d0
4 files changedLine totals unavailable