Ingest Video from URL

Ingest a video into Montage from a Google Drive (or any public) URL using the Montage MCP tools and watch it through every pipeline step.

Argument: the video URL. If none was given, ask for one before doing anything.

Requires the Montage MCP server to be connected with the upload_video / get_upload_status tools available (shipped in PR #1298). If the tools are missing, say so and stop.

Step 1: Start the ingestion