27b4424e1a
SelvaFeatureExtractor now stores the prompt in SELVA_FEATURES (both in the returned dict and the .npz cache). SelvaSampler's prompt is now optional — when left empty it falls back to the prompt stored in features. A non-empty override can still be passed when CLIP text should differ from the sync text. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>