Indoor lighting DONE this session (#142/#143 closed). Per user: do NOT merge to
main; start fresh next session. NEXT-session order set in the handoff:
1. #145 — portals only work once per session (run in/out/re-enter repeatedly).
Machinery: 0xF751 PlayerTeleport -> PortalSpace -> TeleportArrivalController ->
streaming collapse/expand. Likely overlaps #138. Instrument a 2nd teleport first.
2. #144 — dungeon interiors still too dim vs retail (cdb side-by-side first).
Handoff: docs/research/2026-06-20-indoor-lighting-done-next-portal-reuse-handoff.md
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>