seedance-anime-drama: anime storyboard shots with image-based character consistency

Turns one shot — or a short sequence — of a novel/script excerpt into an anime-style video clip, using an image of the character as the frame each shot starts from, not just a repeated text description.

This is the first scenario skill in this repo that orchestrates two execution-layer skills rather than one:

1. ofox-image-core generates the character as an image (text-to-image).
2. ofox-video-core generates each shot, with that image passed in as --frame-first-image.

Neither core skill's request-building, error-mapping, or download/reporting logic is duplicated here — this skill owns only the anime-specific prompt craft, the pre-generation brief, the two-step orchestration order, and the two approvals. Read both core skills' safety contracts before using this one — neither is restated here.