feat(D-01/E): resistance & lock system rework (E1-E7)

E1: Initialize currentResistance in NBT at equip time from
    ResistanceComponent — eliminates MAX-scan fallback bug

E2: BuiltInLockComponent for organic items (already committed)

E3: canStruggle refactor — new model:
    - ARMS: always struggle-able (no lock gating)
    - Non-ARMS: only if locked OR built-in lock
    - Removed dead isItemLocked() from StruggleState + overrides

E4: canUnequip already handled by BuiltInLockComponent.blocksUnequip()
    via ComponentHolder delegation

E5: Help/assist mechanic deferred (needs UI design)

E6: Removed lock resistance from ILockable (5 methods + NBT key deleted)
    - GenericKnife: new knifeCutProgress NBT for cutting locks
    - StruggleAccessory: accessoryStruggleResistance NBT replaces lock resistance
    - PacketV2StruggleStart: uses config-based padlock resistance
    - All lock/unlock packets cleaned of initializeLockResistance/clearLockResistance

E7: Fixed 3 pre-existing bugs:
    - B2: DataDrivenItemRegistry.clear() synchronized on RELOAD_LOCK
    - B3: V2TyingPlayerTask validates heldStack before equip (prevents duplication)
    - B5: EntityKidnapperMerchant.remove() cleans playerToMerchant map (memory leak)

src/main/java/com/tiedup/remake/items/clothes/GenericClothes.java

@@ -394,7 +394,6 @@ public class GenericClothes extends Item implements ILockable, IV2BondageItem {
         stack.getOrCreateTag().putBoolean(NBT_LOCKED, state);
         if (!state) {
             // When unlocking, clear lock-related data
-            clearLockResistance(stack);
             setJammed(stack, false);
         }
         return stack;
@@ -439,7 +438,6 @@ public class GenericClothes extends Item implements ILockable, IV2BondageItem {
         if (keyUUID != null) {
             tag.putUUID(NBT_LOCKED_BY_KEY_UUID, keyUUID);
             setLocked(stack, true);
-            initializeLockResistance(stack);
         } else {
             tag.remove(NBT_LOCKED_BY_KEY_UUID);
             setLocked(stack, false);