Files your agent downloads come back to you

An agent that logs into a portal and clicks Export used to land the file inside a browser session that then disappeared. The work happened and the result went nowhere.

A run can now collect a downloaded file and keep it as a run artifact, with its real name preserved. It appears on the run page alongside the recording, with a download link.

Three caps hold it together: 25 MiB for any one file, a total for the whole run, and a limit on how many files one run collects. The per-file cap has to stay a real fraction of the run total, or the first file exhausts the run and nothing after it can speak. A file over the line shows its real name and size with no link that would fail, rather than pretending the bytes are there.

The tool exists only where it belongs. It is attached to a run's browser and never to the interview's browser window, by how the toolset is assembled rather than by four call sites each remembering to pass the right argument.