fix(P1+P2): swarm review — UX fixes + V1 dead code cleanup

P1 — UX visible:
- Add 4 missing translations (leather_mittens, ball_gag_3d, taser, debug_wand)
- Fix earplugs resistance bucket: "blindfold" → "earplug"
- Split mixin config: core (require=1) + compat MCA (require=0)
- Bump PROTOCOL_VERSION from "1" to "2"
- Add debug_wand item model (no texture — debug only)
- Fix 3 display_name inconsistencies (chain, vine_seed, shock_collar_auto)

P2 — Dead code cleanup:
- Delete IHas3DModelConfig + Model3DConfig (zero imports)
- Remove MovementStyleResolver.resolveV1Fallback() + V1Fallback record + V1 constants
- Remove AnimationTickHandler V1 fallback block + buildAnimationId()
- Document PlayerEquipment.equipInRegion() bypass as intentional (force-equip paths)

src/main/resources/META-INF/mods.toml

@@ -78,6 +78,9 @@ description='''${mod_description}'''
 [[mixins]]
 config="tiedup.mixins.json"
 
+[[mixins]]
+config="tiedup-compat.mixins.json"
+
 # Features are specific properties of the game environment, that you may want to declare you require. This example declares
 # that your mod requires GL version 3.2 or higher. Other features will be added. They are side aware so declaring this won't
 # stop your mod loading on the server for example.