Seedance Provider Prompting

# Seedance-Style Provider Prompting

Use this reference when `output_policy.provider_target`, provider name, or model
name indicates Dreamina, Seedance, Jimeng, or another Seedance-like multimodal
video surface.

## Core Rule

Seedance-style work uses two matched prompts generated as two separate stages:

- `storyboard_prompt`: still-image/keyframe prompt for generating the frame.
- `motion_prompt`: video-motion prompt for moving that frame.

`prompt_text` is only a compatibility field for video providers and should equal
`motion_prompt`. Keep the rich production data in JSON fields:

- reference duties in `reference_duties`;
- risks in `risk_notes`;
- validation hints in `lint_hints`;
- sound in `audio_prompt`;
- short exclusions in `negative_prompt`.

## Storyboard Prompt

Generate this with `scripts/generate_storyboard_prompt.py`.

The storyboard prompt is for image generation. Preferred order: