- trading_execution: implement the daily-loss circuit breaker (account equity vs
prior close; latches once tripped; fail-open on a data hiccup) — was
advertised in the docstring/settings but never implemented.
- discovery: filter leveraged ETFs (SOXS/TZA/TSLL/NVD/BITO/...) out of the
universe; retry the screener on a transient empty (rate-limit) result.
- run_live_paper: fallback watchlist is now liquid sub-$20 names, not mega-caps
(mega-caps just get filtered by the watcher band -> nothing to trade).
Verified live: forced ready signal -> auto-approve -> real Alpaca bracket order
(pending_new, then cancelled); breaker trips at -3% (simulated). 67/67 tests green.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
