[IllianiBird]

What this changes

We were running out of memory running both the J21 and J25 battery. J25 has been disabled until we're closer to officially supporting J25.

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• This PR is focused on one issue or RFE. Large refactoring or accessibility work is in its own PR
• Every file in the diff has a deliberate change (no stray formatting, no unrelated files)
• Tests added or updated, if this implements a rule or changes game state
• Javadoc literals use {@code true} / {@code null} rather than bare or quoted text
• Dev team only: if AI tools were used, the AI Assisted Development label is applied, and I can
  explain and have verified the result