Pilaster Fang — original Castle Raidr editable study

Import geometry/<slug>.geo.json in Blockbench as Bedrock geometry.
Load textures/<slug>.png; normal and MER maps are beside it. The native
texture-set JSON records the material references. Animation and particle
JSON are editable native sources (Snowstorm for particles). All maps,
geometry, motion and WAV audio are the exact hashed native/browser bytes.
Native audition: /function item_review_sound/pilaster_fang (calling player only).
The WAV is an original editable equipment cue; its synthesis score is in
authoring.json. Direct Blockbench WAV preview and export round-trip have
not been qualified. This ZIP is not a .bbmodel project or an add-on.

Artist overrides: copy the edited geometry to
assets/item_visuals/overrides/pilaster_fang/native.geo.json,
optionally add color.png, normal.png and mer.png (64x64), then run
python3 scripts/generate_legendary_visuals.py and its --check. Preserve
the geometry identifier, root/aura locator, 64x64 per-face UV atlas and
128-cube budget. Re-run browser and actual native client acceptance.
Never edit generated bytes as the only source; regeneration replaces them.
