feat(D-01/D): V1 cleanup — delete 28 files, ~5400 lines removed

D1: ThreadLocal alert suppression moved from ItemCollar to CollarHelper.
    onCollarRemoved() logic (kidnapper alert) moved to CollarHelper.

D2+D3: Deleted 17 V1 item classes + 4 V1-only interfaces:
  ItemBind, ItemGag, ItemBlindfold, ItemCollar, ItemEarplugs, ItemMittens,
  ItemColor, ItemClassicCollar, ItemShockCollar, ItemShockCollarAuto,
  ItemGpsCollar, ItemChokeCollar, ItemHood, ItemMedicalGag,
  IBondageItem, IHasGaggingEffect, IHasBlindingEffect, IAdjustable

D4: KidnapperTheme/KidnapperItemSelector/DispenserBehaviors migrated
    from variant enums to string-based DataDrivenItemRegistry IDs.

D5: Deleted 11 variant enums + Generic* factories + ItemBallGag3D:
  BindVariant, GagVariant, BlindfoldVariant, EarplugsVariant, MittensVariant,
  GenericBind, GenericGag, GenericBlindfold, GenericEarplugs, GenericMittens

D6: ModItems cleaned — all V1 bondage registrations removed.
D7: ModCreativeTabs rewritten — iterates DataDrivenItemRegistry.
D8+D9: All V2 helpers cleaned (V1 fallbacks removed), orphan imports removed.

Zero V1 bondage code references remain (only Javadoc comments).
All bondage items are now data-driven via 47 JSON definitions.

src/main/java/com/tiedup/remake/v2/furniture/EntityFurniture.java

@@ -2,7 +2,7 @@ package com.tiedup.remake.v2.furniture;
 
 import com.tiedup.remake.core.TiedUpMod;
 import com.tiedup.remake.items.ItemMasterKey;
-import com.tiedup.remake.items.base.ItemCollar;
+import com.tiedup.remake.v2.bondage.CollarHelper;
 import com.tiedup.remake.state.IBondageState;
 import com.tiedup.remake.state.PlayerBindState;
 import com.tiedup.remake.state.PlayerCaptorManager;
@@ -713,11 +713,10 @@ public class EntityFurniture
                         );
                         if (
                             collarStack.isEmpty() ||
-                            !(collarStack.getItem() instanceof
-                                    ItemCollar collar)
+                            !CollarHelper.isCollar(collarStack)
                         ) continue;
                         if (
-                            !collar.isOwner(collarStack, serverPlayer) &&
+                            !CollarHelper.isOwner(collarStack, serverPlayer) &&
                             !serverPlayer.hasPermissions(2)
                         ) continue;