A route-only floor profile cannot reproduce current support semantics: support is gated per
sample by native density < 0, player-capsule clearance, later-bore deferral and neighbouring-
passage capsule checks (the overlapping-coil tile exercises all of them). The exact per-tile
boundary-band XY column cache matched all 24 hashes but showed no consistent readiness gain,
so it is kept as a patch only (patches/band-column-cache-not-merged.patch), not merged.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_016dhxM43dnWvUu2B5Ph1iG1
