After the 2026-05-21 session merged A1/A1.5/A1.6/A1.7 to main, six
discrete items remain. This doc maps them as a landscape rather than
single-phase:
- Collision (M2 critical path): A4 multi-cell BSP iteration → verify
stairs → A2 PHSP inversion → A3 synthesis removal
- Rendering (M7 polish): indoor lighting + spotlight-projection bugs
The recommended order is A4 first (biggest user payoff, unblocks A3),
then stairs verification, A2 + A3 paired, lighting in a separate
session. A3 must NOT ship before A4 — that's the Bug A regression
from 2026-05-20.
Includes a pasteable session-start prompt that the user can box into
a fresh Claude Code session.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
