dev
feat(app): make session timelines much faster AND without flicker or scroll jumps (#32331)
fix(app): resync timeline after route reconnect (#36643)
fix(app): hydrate timeline message parents (#35269)
fix(app): stabilize session timeline layout continuity (#34533)
feat(app): redesign attachment cards (#35945)
fix(app): deduplicate diff summaries linearly (#37414)
fix(app): reject stale timeline range indexes (#33488)