feat(D-01/C): consumer migration — 85 files migrated to V2 helpers

Phase 1 (state): PlayerBindState, PlayerCaptorManager, PlayerEquipment,
  PlayerDataRetrieval, PlayerLifecycle, PlayerShockCollar, StruggleAccessory
Phase 2 (client): AnimationTickHandler, NpcAnimationTickHandler, 5 render
  handlers, DamselModel, 3 client mixins, SelfBondageInputHandler,
  SlaveManagementScreen, ActionPanel, SlaveEntryWidget, ModKeybindings
Phase 3 (entities): 28 entity/AI files migrated to CollarHelper,
  BindModeHelper, PoseTypeHelper, createStack()
Phase 4 (network): PacketSlaveAction, PacketMasterEquip,
  PacketAssignCellToCollar, PacketNpcCommand, PacketFurnitureForcemount
Phase 5 (events): RestraintTaskTickHandler, PetPlayRestrictionHandler,
  PlayerEnslavementHandler, ChatEventHandler, LaborAttackPunishmentHandler
Phase 6 (commands): BondageSubCommand, CollarCommand, NPCCommand,
  KidnapSetCommand
Phase 7 (compat): MCAKidnappedAdapter, MCA mixins
Phase 8 (misc): GagTalkManager, PetRequestManager, HangingCagePiece,
  BondageItemBlockEntity, TrappedChestBlockEntity, DispenserBehaviors,
  BondageItemLoaderUtility, RestraintApplicator, StruggleSessionManager,
  MovementStyleResolver, CampLifecycleManager

Some files retain dual V1/V2 checks (instanceof V1 || V2Helper) for
coexistence — V1-only branches removed in Branch D.

src/main/java/com/tiedup/remake/client/animation/render/DogPoseRenderHandler.java

@@ -1,8 +1,8 @@
 package com.tiedup.remake.client.animation.render;
 
 import com.tiedup.remake.core.TiedUpMod;
-import com.tiedup.remake.items.base.ItemBind;
 import com.tiedup.remake.items.base.PoseType;
+import com.tiedup.remake.v2.bondage.PoseTypeHelper;
 import com.tiedup.remake.state.HumanChairHelper;
 import com.tiedup.remake.state.PlayerBindState;
 import com.tiedup.remake.v2.BodyRegionV2;
@@ -93,14 +93,11 @@ public class DogPoseRenderHandler {
         }
 
         ItemStack bindForPose = state.getEquipment(BodyRegionV2.ARMS);
-        if (
-            bindForPose.isEmpty() ||
-            !(bindForPose.getItem() instanceof ItemBind itemBind)
-        ) {
+        if (bindForPose.isEmpty()) {
             return;
         }
 
-        PoseType bindPoseType = itemBind.getPoseType();
+        PoseType bindPoseType = PoseTypeHelper.getPoseType(bindForPose);
         // Check for humanChairMode NBT override
         bindPoseType = HumanChairHelper.resolveEffectivePose(
             bindPoseType,

src/main/java/com/tiedup/remake/client/animation/render/PetBedRenderHandler.java

@@ -2,8 +2,8 @@ package com.tiedup.remake.client.animation.render;
 
 import com.tiedup.remake.client.state.PetBedClientState;
 import com.tiedup.remake.core.TiedUpMod;
-import com.tiedup.remake.items.base.ItemBind;
 import com.tiedup.remake.items.base.PoseType;
+import com.tiedup.remake.v2.bondage.PoseTypeHelper;
 import com.tiedup.remake.state.HumanChairHelper;
 import com.tiedup.remake.state.PlayerBindState;
 import com.tiedup.remake.v2.BodyRegionV2;
@@ -83,11 +83,9 @@ public class PetBedRenderHandler {
         PlayerBindState state = PlayerBindState.getInstance(player);
         if (state == null) return false;
         ItemStack bind = state.getEquipment(BodyRegionV2.ARMS);
-        if (
-            bind.isEmpty() || !(bind.getItem() instanceof ItemBind itemBind)
-        ) return false;
+        if (bind.isEmpty()) return false;
         PoseType pose = HumanChairHelper.resolveEffectivePose(
-            itemBind.getPoseType(),
+            PoseTypeHelper.getPoseType(bind),
             bind
         );
         return pose == PoseType.DOG || pose == PoseType.HUMAN_CHAIR;

src/main/java/com/tiedup/remake/client/animation/render/PlayerArmHideEventHandler.java

@@ -2,8 +2,8 @@ package com.tiedup.remake.client.animation.render;
 
 import com.tiedup.remake.client.renderer.layers.ClothesRenderHelper;
 import com.tiedup.remake.core.TiedUpMod;
-import com.tiedup.remake.items.base.ItemBind;
 import com.tiedup.remake.items.base.PoseType;
+import com.tiedup.remake.v2.bondage.PoseTypeHelper;
 import com.tiedup.remake.items.clothes.ClothesProperties;
 import com.tiedup.remake.state.PlayerBindState;
 import com.tiedup.remake.v2.BodyRegionV2;
@@ -71,10 +71,8 @@ public class PlayerArmHideEventHandler {
         // === HIDE ARMS (wrap/latex_sack poses) ===
         if (state.hasArmsBound()) {
             ItemStack bind = state.getEquipment(BodyRegionV2.ARMS);
-            if (
-                !bind.isEmpty() && bind.getItem() instanceof ItemBind itemBind
-            ) {
-                PoseType poseType = itemBind.getPoseType();
+            if (!bind.isEmpty()) {
+                PoseType poseType = PoseTypeHelper.getPoseType(bind);
 
                 // Only hide arms for wrap/sack poses (arms are covered by the item)
                 if (

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

@@ -14,8 +14,9 @@ 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.ItemBind;
 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.state.HumanChairHelper;
 import com.tiedup.remake.state.PlayerBindState;
 import com.tiedup.remake.v2.BodyRegionV2;
@@ -249,14 +250,10 @@ public class AnimationTickHandler {
         PlayerBindState state
     ) {
         ItemStack bind = state.getEquipment(BodyRegionV2.ARMS);
-        PoseType poseType = PoseType.STANDARD;
+        PoseType poseType = PoseTypeHelper.getPoseType(bind);
 
-        if (bind.getItem() instanceof ItemBind itemBind) {
-            poseType = itemBind.getPoseType();
-
-            // Human chair mode: override DOG pose to HUMAN_CHAIR (straight limbs)
-            poseType = HumanChairHelper.resolveEffectivePose(poseType, 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(
@@ -268,10 +265,10 @@ public class AnimationTickHandler {
             BodyRegionV2.LEGS
         );
 
-        // V1 fallback: if no V2 regions are set but player is tied, derive from ItemBind NBT
-        if (!armsBound && !legsBound && bind.getItem() instanceof ItemBind) {
-            armsBound = ItemBind.hasArmsBound(bind);
-            legsBound = ItemBind.hasLegsBound(bind);
+        // 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();

src/main/java/com/tiedup/remake/client/animation/tick/NpcAnimationTickHandler.java

@@ -9,8 +9,9 @@ import com.tiedup.remake.client.gltf.GltfAnimationApplier;
 import com.tiedup.remake.entities.AbstractTiedUpNpc;
 import com.tiedup.remake.entities.EntityMaster;
 import com.tiedup.remake.entities.ai.master.MasterState;
-import com.tiedup.remake.items.base.ItemBind;
 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.v2.BodyRegionV2;
 import com.tiedup.remake.v2.bondage.IV2BondageEquipment;
 import com.tiedup.remake.v2.bondage.capability.V2EquipmentHelper;
@@ -161,13 +162,8 @@ public class NpcAnimationTickHandler {
         net.minecraft.world.item.ItemStack bind = entity.getEquipment(
             BodyRegionV2.ARMS
         );
-        PoseType poseType = PoseType.STANDARD;
-        boolean hasBind = false;
-
-        if (bind.getItem() instanceof ItemBind itemBind) {
-            poseType = itemBind.getPoseType();
-            hasBind = true;
-        }
+        PoseType poseType = PoseTypeHelper.getPoseType(bind);
+        boolean hasBind = BindModeHelper.isBindItem(bind);
 
         // Derive bound state from V2 regions (AbstractTiedUpNpc implements IV2EquipmentHolder)
         boolean armsBound = V2EquipmentHelper.isRegionOccupied(
@@ -179,10 +175,10 @@ public class NpcAnimationTickHandler {
             BodyRegionV2.LEGS
         );
 
-        // V1 fallback: if no V2 regions set but NPC has a bind, derive from ItemBind NBT
-        if (!armsBound && !legsBound && bind.getItem() instanceof ItemBind) {
-            armsBound = ItemBind.hasArmsBound(bind);
-            legsBound = ItemBind.hasLegsBound(bind);
+        // V1 fallback: if no V2 regions set but NPC has a bind, derive from bind mode NBT
+        if (!armsBound && !legsBound && BindModeHelper.isBindItem(bind)) {
+            armsBound = BindModeHelper.hasArmsBound(bind);
+            legsBound = BindModeHelper.hasLegsBound(bind);
         }
 
         boolean isStruggling = entity.isStruggling();