Replace scrolling LiteLLM debug logs with an in-place Rich Live dashboard
that shows key metrics after each turn: funds sparkline, task progress bars
with colored domain labels, team skill bars, runway urgency, and more.
- New: src/yc_bench/runner/dashboard.py (BenchmarkDashboard, DashboardState)
- Add on_turn/on_turn_start callbacks to agent loop
- Auto-detect TTY, redirect all logging to logs/debug.log when live
- Add --no-live flag to disable dashboard and get old log output
- Use alternate screen buffer (screen=True) for clean rendering
- Fix start.sh: clean up stale temp files before mktemp
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
