Cobblemon Battle Tower Fix

Patched version of Cobblemon Battle Tower (1.10.19) for modpacks using the rctapi academyfix build.

This mod fixes Boss battle mode (G-Max Meowth) which was broken due to a signature incompatibility between Cobblemon Battle Tower and the rctapi academyfix fork of RCTAPI.

Fixes included:
- Boss battle no longer freezes after the player selects an action
- BossStartHelper now correctly calls BattleRegistry.startBattle$default() via invokestatic
- Boss AI (RandomBattleAI) is properly deferred until Showdown is initialized
- deferBossOpeningAiChoice correctly handles uninitialized actor state

Required mods: Cobblemon, rctapi (academyfix build), wild_battle_api

This is NOT a standalone mod. It replaces cobblemon_battle_tower in modpacks using the academyfix ecosystem.