Media jobs report progress and results through the media block, which the
web app did not render.
- MediaCard renders the block: operation icon, title, status (reusing the
task card's labels, plus "Waiting for GPU" for jobs queued behind the
GPU), a progress bar while active, the error when failed, and outputs:
images as thumbnails with the existing lightbox, video and audio in the
media player, subtitle and text files as file cards. Finished video and
audio get a download link, "Export" with presets labelled by aspect ratio
(the video's own shape left out) and "Transcribe", offered only when the
space can run them; running jobs get "Cancel".
- MessageView renders it with one branch.
- An E2E seeds the card on a thread snapshot with real uploaded artifacts.
- artifact-url.ts and MediaPlayer.tsx are minimal stand-ins for the
pipeline workstream's files and give way to them on merge.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01MRtGG9ARfqqhma3t85Ro2u
