Import v2 base (unchanged files)

data/models.json

@@ -0,0 +1,4 @@
+{
+  "_note": "Multi-part OBJ ghost models. Drop OBJs into public/models/<id>/ and list parts here (legs|wisp, torso, head, headpiece). While 'models' is empty the exhibit uses the procedural wisp fallback.",
+  "models": []
+}