fix(web): keep known preview tabs while the session list refreshes (#14955)

Co-authored-by: SAPHID <saphid@users.noreply.github.com>
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
26c241144aAlex Southwell committed on 10/18/2026, 7:14:02 PM· committed by GitHubparentd7c7115
2 files changedLine totals unavailable