Sandbar can install new releases itself using Reef's selfupdate, automatically with
SANDBAR_AUTO_UPDATE=1 or from a button on the Account page. In a container the new binary is
written to <data>/bin and takes over from the image at start, until the image catches up.
Tags now publish a Gitea release with archives and SHA256SUMS as well as the image.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
