test(simulation): QA coverage for Phase 2 verbs, sprint suppression, occupancy, inventory
Add comprehensive test suites across sprint 6 systems:
- Phase 2 observer filter: Confront injection, archetype label relabeling,
contradiction marking, POI priority ordering (12 tests)
- Sprint anomaly: detection during sprint, queue semantics, delay timing,
D-055 visible-but-suppressed integration (7 tests)
- Wire format: Confront and CharacterArchetype msgpack roundtrip (4 tests)
- TilePresence: 4-layer coexistence on same tile (1 test)
- Inventory: Take/Place full roundtrip, capacity enforcement (3 tests)
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>