Read deed consumers from DeedTemplate

Deed placement (ObjectActionMsgHandler, PlaceAssetMsgHandler) reads
deed_structure_id from DeedTemplate._deeds. The deed, employment
contract and charter type checks (PlaceAssetMsgHandler,
ActivateNPCMsgHandler, GuildCreationFinalizeHandler, UseCharterMsg,
Item.serialize) read item_type through the cache template bridge.
Charters go through the shared getter rather than _deeds because
template 545 "Charter" is a CHARTER in the ITEM folder.

Parity (offline, static_item_templates vs COBJECTS, scripts/p13.py,
881 templates: all 880 DEED plus ITEM 545): 0 differences in
item_type and deed_structure_id. Every DB DEED, EMPLOYMENTCONTRACT,
PETTOTEM and FURNITUREDEED id is in the DEED folder. No value changes
expected. No pet totem or furniture deed consumer reads template
fields, so neither changes.

JSON-Refactor-Plan Task 1.3.

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

src/engine/net/client/handlers/PlaceAssetMsgHandler.java

@@ -356,8 +356,8 @@ public class PlaceAssetMsgHandler extends AbstractClientMsgHandler {
         Item contract = null;
 
         for (Item inventoryItem : playerCharacter.getInventory()) {
-            if (inventoryItem.template.item_type.equals(ItemType.DEED) &&
-                    inventoryItem.template.deed_structure_id == buildingList.getBlueprintUUID()) {
+            if (inventoryItem.template.cacheTemplate.getItemType().equals(ItemType.DEED) &&
+                    DeedTemplate._deeds.get(inventoryItem.templateID).deed_structure_id == buildingList.getBlueprintUUID()) {
                 contract = inventoryItem;
                 break;
             }