Hygiene fixup for the IsForecast/IsRandomDraw ambient conversion in 3b5f2e1.
The manifest sha was stale (pointed at the pre-ambient RNG-virtual-patched
contents) and the change had no companion .patch artifact alongside
BattleManagerBase.rng-virtual.patch. Follow established convention.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
