Read item_type through the cache template bridge

Every consumer of the legacy ItemTemplate item_type now reads
template.cacheTemplate.getItemType(). Left on the legacy field: the
type count in dbItemHandler.LOAD_ITEM_TEMPLATES, which runs before the
bridge is linked. The charter checks already read DeedTemplate.

Parity (offline, static_item_templates vs the template
CObjectIndex.lookup picks, scripts/p14.py, 7586 templates: ITEM 4011,
DEED 880, RUNE 2695): 0 differences in item_type. No value changes
expected.

JSON-Refactor-Plan Task 1.4.

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

src/engine/devcmd/cmds/SimulateBootyCmd.java

@@ -57,7 +57,7 @@ public class SimulateBootyCmd extends AbstractDevCmd {
             try {
                 mob.loadInventory();
                 for (Item lootItem : mob.charItemManager.getInventory()) {
-                    switch (lootItem.template.item_type) {
+                    switch (lootItem.template.cacheTemplate.getItemType()) {
                         case EMPLOYMENTCONTRACT: //CONTRACT
                             Contracts.add(lootItem);
                             break;