Add: Event Shop

Fix: correct pt locations to adapt

Fix: missing self parameter in ur_ship_costs

Opt: Refactor event shop item handling and improve max amount calculation

Fix: ensure bought_all is set correctly after confirming purchase

Fix: update ship buying logic to handle multiple purchases and ensure pt_ur is set correctly

module/config/argument/task.yaml

@@ -243,6 +243,7 @@ DailyMission:
       - MedalShop2
       - MeritShop
       - CoreShop
+      - EventShop
     Shipyard:
       - Scheduler
       - ShipyardDr