Erik 48f0b26f62 docs(spec): Indoor portal-based cell tracking design ... Brainstormed spec for the follow-up to Cluster A: port retail's portal-graph cell traversal to replace Phase D's AABB containment shortcut. Closes ISSUES.md #87 and the remaining wall-collision parts of #84 + #85 — indoor walking with walls that block from inside, walking through doors that updates CellId. Scope: all three transition types (indoor↔indoor, indoor↔outdoor, outdoor→indoor). AABB containment deleted entirely; portal traversal is the only path. Key data references: docs/research/acclient_indoor_transitions_pseudocode.md (2026-04-13) has the entire algorithm already documented from ACE source cross-referenced against the retail header. BSPQuery.PointInsideCellBsp is already wired (just unused). Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>		2026-05-19 16:32:21 +02:00
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plans	docs(plan): Indoor walking Phase 1 — BSP cluster implementation plan	2026-05-19 14:15:50 +02:00
specs	docs(spec): Indoor portal-based cell tracking design	2026-05-19 16:32:21 +02:00