Add scripts/check-compat-floor.py and research/touch-points data files
to foundation branch so CI compat-floor job passes on all stacked PRs.
Per PLAN.md §Compat-floor, all blast_radius ≥ 2.0 categories must have
complete test triples before v2 ships.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>