Read offering info and bane rank through the bridge

Shrine boons read getItemOfferingInfo() and the banestone and bane
production paths read getItemBaneRank() on template.cacheTemplate.

The legacy parser only kept item_bane_rank when ACTIONRESPONSE is
4250517122; the cache parsers always read it. Parity shows this makes
no difference: every template outside that gate has bane rank 0.

Parity (offline, scripts/p14.py, 7586 templates): 0 differences in
item_offering_info and item_bane_rank. No value changes expected.

JSON-Refactor-Plan Task 1.4.

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

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

@@ -188,14 +188,14 @@ public class ObjectActionMsgHandler extends AbstractClientMsgHandler {
                         if (uuid > 680069 && uuid < 680074) //Handle Charter, Deed, Petition, Warrant here
                             break;
 
-                        if (item.template.item_bane_rank > 0) {
+                        if (item.template.cacheTemplate.getItemBaneRank() > 0) {
 
                             // Only one banestone at a time
 
                             lock.writeLock().lock();
 
                             try {
-                                if (Bane.summonBanestone(player, origin, item.template.item_bane_rank) == true)
+                                if (Bane.summonBanestone(player, origin, item.template.cacheTemplate.getItemBaneRank()) == true)
                                     itemMan.consume(item);
                             } finally {
                                 lock.writeLock().unlock();