Read defense, bulk and primary attr from the cache ItemTemplate

item_defense_rating, item_bulk_factor and item_primary_attr are
Item-only fields, not on CObjectTemplate, so their consumers read
engine.parsers.objects.ItemTemplate._items by templateID, like the
RuneTemplate and DeedTemplate consumers. The primary attr checks
compare with == because the cache template leaves the attr null
(legacy: None) on non-weapons.

Parity (offline, scripts/p14.py, 7586 templates): 0 differences in
item_defense_rating, item_bulk_factor and item_primary_attr. Every DB
ARMOR and WEAPON template is in the ITEM folder, so both sides gate
these fields on the same templates. No value changes expected.

JSON-Refactor-Plan Task 1.4.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

src/engine/gameManager/NPCManager.java

@@ -315,7 +315,7 @@ public enum NPCManager {
                 //has main hand weapon
                 Item weapon = guard.charItemManager.equipped.get(mbEnums.EquipSlotType.RHELD);
 
-                if (weapon.template.item_primary_attr.equals(mbEnums.AttributeType.Strength))
+                if (engine.parsers.objects.ItemTemplate._items.get(weapon.templateID).item_primary_attr == mbEnums.AttributeType.Strength)
                     primaryStat = guard.getStatStrCurrent();
                 else
                     primaryStat = guard.getStatDexCurrent();
@@ -327,7 +327,7 @@ public enum NPCManager {
             } else if (guard.charItemManager.equipped.containsKey(mbEnums.EquipSlotType.LHELD) && !ItemManager.isShield(guard.charItemManager.equipped.get(mbEnums.EquipSlotType.LHELD).template)) {
                 //has off hand weapon
                 Item weapon = guard.charItemManager.equipped.get(mbEnums.EquipSlotType.LHELD);
-                if (weapon.template.item_primary_attr.equals(mbEnums.AttributeType.Strength))
+                if (engine.parsers.objects.ItemTemplate._items.get(weapon.templateID).item_primary_attr == mbEnums.AttributeType.Strength)
                     primaryStat = guard.getStatStrCurrent();
                 else
                     primaryStat = guard.getStatDexCurrent();
@@ -353,7 +353,7 @@ public enum NPCManager {
         int armorDefense = 0;
         for (Item equipped : guard.charItemManager.equipped.values())
             if (equipped.template.cacheTemplate.getItemType().equals(mbEnums.ItemType.ARMOR) || ItemManager.isShield(equipped.template))
-                armorDefense += equipped.template.item_defense_rating;
+                armorDefense += engine.parsers.objects.ItemTemplate._items.get(equipped.templateID).item_defense_rating;
         guard.defenseRating = dexterity + baseDef + armorDefense;
     }