Recognizes mp4/webm/ogv/mov/m4v on URL path (case-insensitive, ignoring query strings) and emits <video controls class="kb-video">. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Initial skeleton returning null for any non-media URL. Subsequent commits add detection for video, audio, YouTube, and Vimeo. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>