If connection is choppy, callibration and neutral can get stuck on the queue

[AlbertoCasasOrtiz]

If the connection is choppy and at least one calibration image is not uploaded by the phones (but the connection is strong enough so the phones are not detected as disconnected), the calibration trial will get stuck on the queue for at least 15 minutes, and then errored with no extra information.

Steps to take:

• Fill at least the error metadata field, so we can know what happened.
• Make the timeout for calibration and neutral trials shorter than for dynamic as it only has to upload single images and should be quick.

Example session, replicated by exiting the app just half a second after calibration is clicked in the web app:
https://api.opencap.ai/sessions/201aae84-a6a0-40ab-a3f6-708a935a9f1b/

[mimomq]

Why can't the mobile phone calibrate the chessboard when I deploy it? The background has been returning to the recorded state and won't stop.