CLAUDE.md/docs/roadmap.md/docs/library.md: register tools/shiptrip.py,
tools/shipcost.py, tools/lmscan.py, and puga/shipping.py/puga/contracts.py
per this project's usual pattern of recording new tools where every other
tool is listed.
docs/mechanics.md: new "Gateway (GTW) jump transit time" section - our own
measured GTW segment durations scale ~linearly with parsec distance
(~20 min/parsec across 3 distinct distances), contradicting a 2024
pre-launch forum comment about a possibly-fixed transit time. Also notes
the handbook-confirmed facts not modelled anywhere yet: one-way gateway
links and per-gateway max jump volume.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>