- tools/buy.py: cash-aware shopping list (construction gap vs empire state's built
buildings, plus N days of NET operating stock via simulate() so self-produced
inputs net against consumption), priced at real order-book fill cost, checked
against cash/reserve, flags multi-trip, binary-searches an affordable size when short
- tools/sell.py: where to post an ask vs hitting the bids now, with expected
clear time from 30-day traded-volume percentiles
- docs/library.md: module map and patterns for using puga.* directly instead of
the CLI, plus the "simulate() only knows what the plan lists" gotcha that a
first version of buy.py hit
- tools/simulate.py: fix --no-hq being a no-op; tools/state.py: permits_total_override
for when the in-game HQ screen disagrees with FIO's MaximumPermits
- docs/mechanics.md: HQ display vs PRUNplanner's HQ flag, workforce arrival sources
- CLAUDE.md, docs/roadmap.md updated
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>