feat: interior family complete — church, temple, palace theme packs

Three interior-kernel themes on barrow geometry, each 4 motifs:
  church   faith · congregation · offering · sanctity
  temple   exactness · sacrifice · silence · exclusion
  palace   service · delight · splendour · audience

All validate. 7 themes total; index.json rebuilt. Module → 0.4.0.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

foundry-module/module.json

@@ -2,7 +2,7 @@
   "id": "vanity-delve",
   "title": "DELVE — a dungeon layer for VANITY",
   "description": "Generates a coherent delve and sequences VANITY's Forge to stage it, one area at a time.",
-  "version": "0.3.0",
+  "version": "0.4.0",
   "compatibility": {
     "minimum": "13",
     "verified": "14.365"