Hollow Spiral v0.3.7 / DAI 1.9.5 static validation
JSON parsing: PASS
Internal hollow_spire function references: PASS
DAI pack role metadata: PASS (main)
DAI 1.9.5 world_type migration: PASS (void)
Legacy save_id continuity: PRESERVED
Vanilla mob mode: PRESERVED
PNG signature check: PASS

The v0.3.6 dungeon/stair/ocean/castle implementation is retained.
Runtime Minecraft testing remains authoritative for NeoForge/DAI event timing and world creation.
