Eight canonical examples rebuilt on the typed PHOTA_PROFILE sockets
(generate, edit, train_then_generate, profile_gallery, two_subjects,
character_sheet, ugc_product_shot, video_keyframes). Drops the
redundant profile_preview/edit_chain/comic_strip. All JSON now comes
from scripts/build_example_workflows.py, which also emits a numbered,
selector-prefilled demo set for live demos.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
