Plan breaks the work into 9 TDD tasks: scaffold resolver, video
detection, audio detection, YouTube URL detection, YouTube timestamps,
Vimeo detection, listener+extension wiring, integration tests, full
test suite verification.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Approved design for extending image syntax `` to render videos,
audio, YouTube, and Vimeo embeds. Preserves html_input=>strip safety and
existing image/Wiki-link behavior.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>