Rewrite one segment's creative direction from feedback ("make this shot
a close-up", "show the machine from above") — an LLM rewrites the shot's
prompts; continuation links, SFX, and overlays are preserved. The visual
assets reset to not_started: re-render them afterwards (generate_segments
or regenerate_segment_asset). For a precise prompt tweak with no rewrite,
use regenerate_segment_asset with editable_sections instead.
Connector