CATR 0.6.0 — Muzzle Brake Recipe Fix
Based only on the supplied catr-1.21.1-0.6.0-_neo (1).jar.

New path:
1 catr:steel_blank -- Minecraft stonecutter --> 1 catr:incoplete_muzzle_brake
catr:incoplete_muzzle_brake -- original Create sequence, 2 loops --> catr:muzzle_brake

Only the starting ingredient of the Create assembly was changed. Its steps,
additive ingredients, output and loop count were preserved. The durable magazine
recipe is unchanged. No new registered items or Java classes were added.
The existing unfinished muzzle brake is the preform and now has a 3D model using
the finished brake's steel-body geometry, material palette and GUI transform.
The model has a fixed transform for lying on a standard Create depot.
The finished muzzle-brake model and all other models are unchanged.

File naming: catr-1.21.1-0.6.0-neo-fix.jar (no underscore).
Replace the previous CATR JAR; do not install two CATR versions together.
On a multiplayer setup, apply the recipe change to the server as well.
Existing in-progress assemblies keep the same recipe ID and transitional item.
Existing automation starting from steel_sheet must be changed to the new path.

Validation: JSON parsing, item/model/texture references, recipe structure,
uniqueness of the new entry ingredient, model bounds and JAR change whitelist.
Minecraft was not launched. Java bytecode and prior renderer fixes are untouched.
