Pure v2v anime->real conditioning for the Bernini-R anime2real LoRA
(trained without reference). Mirrors training: guide -> source_id 1 on
both positive and negative, empty latent -> source_id 0, no source_id 2
and no amplify_reference (no reference to amplify; text-only CFG).
Reuses bernini_patches; registered in __init__.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
