The single-threaded passes (and the trigger thread) ballooned to 60-120s.
Cause: flaky WSL DNS makes ~1 in 5 Alpaca calls take ~5s to resolve, and each
pass fired ~20 calls (breaker, sync, guard, exit manager all re-reading
account/positions/orders). Fixes:
- client: 2.5s TTL cache for get_account/get_positions (invalidated on any
order mutation) — collapses the redundant per-pass reads to one.
- exit manager: fetch the (heavy) status=all orders snapshot ONCE per pass and
reuse it for every position's stop-leg + entry-time lookup (was 2 calls/pos).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
