- Entity::to_bits() roundtrip test guards against bevy version changes silently breaking wire IDs (Hoshe #1) - PROTOCOL_VERSION constant used in test helpers instead of hardcoded 4 - TickRate switch mid-accumulation test verifies Half→Full→Paused→Half transitions preserve accumulator state correctly (Tyre N3) - POI mid-range test now asserts priority=1 (Hoshe #4) Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>