[JasonStys]

• Per-body/raw-item bidirectional one-bit category and32-bit mask collision inclusion; zero mask matches nothing
• Strict canonical scene-v2 with lossless legacy-v1 default migration and filter-inclusive state fingerprints
• Actual fictional layered CLI scene, initial/final pair CSV and canonical-scene export alongside PPM/replay; v2 fuzz seed

Local validation is recorded in docs/reports/practical-workflows-20261109.md. Full hosted checks remain required before merge.

• AABB query selection only; no physical object collision response, enter/exit trigger callbacks or navigation changes
• Legacy scene behavior defaults preserved, but numeric state fingerprints intentionally change because filter words enter hashing; replay input grammar remainsv1
• Pure raw queries cannot establish current generation validity; World owns entity lifetime
• Fictional integer2D game systems only; no real-world targeting/flight/weapon integration
• Parent must run existing Linux sanitizer/fuzz/coverage and cross-compiler publication matrix