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/java/com/tiedup/remake/client/animation/tick/AnimationTickHandler.java

@@ -7,16 +7,12 @@ import com.tiedup.remake.client.animation.PendingAnimationManager;
 import com.tiedup.remake.client.animation.context.AnimationContext;
 import com.tiedup.remake.client.animation.context.AnimationContextResolver;
 import com.tiedup.remake.client.animation.context.RegionBoneMapper;
-import com.tiedup.remake.client.animation.util.AnimationIdBuilder;
 import com.tiedup.remake.client.events.CellHighlightHandler;
 import com.tiedup.remake.client.events.LeashProxyClientHandler;
 import com.tiedup.remake.client.gltf.GltfAnimationApplier;
 import com.tiedup.remake.client.state.ClothesClientCache;
 import com.tiedup.remake.client.state.MovementStyleClientState;
 import com.tiedup.remake.client.state.PetBedClientState;
-import com.tiedup.remake.items.base.PoseType;
-import com.tiedup.remake.v2.bondage.BindModeHelper;
-import com.tiedup.remake.v2.bondage.PoseTypeHelper;
 import com.tiedup.remake.util.HumanChairHelper;
 import com.tiedup.remake.state.PlayerBindState;
 import com.tiedup.remake.v2.BodyRegionV2;
@@ -207,28 +203,9 @@ public class AnimationTickHandler {
                 );
                 // Clear V1 tracking so transition back works
                 AnimationStateRegistry.getLastAnimId().remove(uuid);
-            } else {
-                // V1 fallback
-                if (GltfAnimationApplier.hasActiveState(player)) {
-                    GltfAnimationApplier.clearV2Animation(player);
-                }
-                String animId = buildAnimationId(player, state);
-                String lastId = AnimationStateRegistry.getLastAnimId().get(
-                    uuid
-                );
-                if (!animId.equals(lastId)) {
-                    boolean success = BondageAnimationManager.playAnimation(
-                        player,
-                        animId
-                    );
-                    if (success) {
-                        AnimationStateRegistry.getLastAnimId().put(
-                            uuid,
-                            animId
-                        );
-                    }
-                }
             }
+            // No V2 items with GLB models — nothing to animate.
+            // V1 items without data-driven definitions are not animated.
         } else if (wasTied) {
             // Was tied, now free - stop all animations
             if (GltfAnimationApplier.hasActiveState(player)) {
@@ -242,53 +219,6 @@ public class AnimationTickHandler {
         AnimationStateRegistry.getLastTiedState().put(uuid, isTied);
     }
 
-    /**
-     * Build animation ID from player's current state (V1 path).
-     */
-    private static String buildAnimationId(
-        Player player,
-        PlayerBindState state
-    ) {
-        ItemStack bind = state.getEquipment(BodyRegionV2.ARMS);
-        PoseType poseType = PoseTypeHelper.getPoseType(bind);
-
-        // Human chair mode: override DOG pose to HUMAN_CHAIR (straight limbs)
-        poseType = HumanChairHelper.resolveEffectivePose(poseType, bind);
-
-        // Derive bound state from V2 regions (works client-side, synced via capability)
-        boolean armsBound = V2EquipmentHelper.isRegionOccupied(
-            player,
-            BodyRegionV2.ARMS
-        );
-        boolean legsBound = V2EquipmentHelper.isRegionOccupied(
-            player,
-            BodyRegionV2.LEGS
-        );
-
-        // V1 fallback: if no V2 regions are set but player is tied, derive from bind mode NBT
-        if (!armsBound && !legsBound && BindModeHelper.isBindItem(bind)) {
-            armsBound = BindModeHelper.hasArmsBound(bind);
-            legsBound = BindModeHelper.hasLegsBound(bind);
-        }
-
-        boolean isStruggling = state.isStruggling();
-        boolean isSneaking = player.isCrouching();
-        boolean isMoving =
-            player.getDeltaMovement().horizontalDistanceSqr() > 1e-6;
-
-        // Build animation ID with sneak and movement support
-        return AnimationIdBuilder.build(
-            poseType,
-            armsBound,
-            legsBound,
-            null,
-            isStruggling,
-            true,
-            isSneaking,
-            isMoving
-        );
-    }
-
     /**
      * Player logout event - cleanup animation data.
      */