- Replace hugeicons status icons with CSS colored dots + glow-pulse
animation for running state (honors prefers-reduced-motion)
- Add smart subtitles from toolArgs: file basename, command preview,
search pattern, URL hostname
- Add right-aligned stats: line count, match count, file count
- Add hover chevron for expand/collapse affordance
- Fix accessibility: aria-label, aria-expanded, focus-visible ring
- Store toolArgs in Message (was received but discarded)
- Extract toolArgs from assistant ToolCall blocks during fetchHistory
- Add --tool-running/success/error CSS variables with dark mode support
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>