- Update ACTION_SYSTEM_ARCHITECTURE.md to describe the active-position
contract and visual lifecycle proof
- Mark BUILD_IN_PUBLIC_PLAN.md systems-gate section complete
- Mark LEARNING_ROADMAP.md architecture-gate section complete and
renumber post-gate implementation sequence
- Update PROJECT_CONTEXT.md immediate-milestone section to reflect
completed gate and next food-loop milestone
- Update SIMULATION_STATE_SCHEMA.md with NPCStateRecord v2 details
- Update ADR 0001 checklist to mark active-position sync done