- videoMIME no longer hard-falls-back to video/mp4: a 2xx body that is
neither declared nor sniffable as video (JSON job envelope, HTML error
page) is now an APIError instead of a 'successful' corrupt clip.
- Resolution rides the wire as width/height AND the OpenAI-style size
string, so either upstream convention honors an explicit request.
- writeFormFields + mimeFromContentType shared helpers replace the
copied multipart loop (audio.go/video.go) and Content-Type branch.
- ADR-0019 indexed in docs/adr/README.md; README gains the videogen
section + support-matrix mention (docs-parity rule).
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01AXQxVhXBw8PwFAtsVrXSmj
steve
89210346b8