pcbgit v0.7.1

Safer updates, and a release process that checks every image before servers see it.

Updates

• Snapshot before every update: the running version backs up the data (without rendered output) right before switching; the newest three are kept under Admin → Backups. PCBGIT_UPDATE_SNAPSHOT=false turns it off.
• Health check and rollback: a new version must pass its health check within five minutes, or the previous version comes back by itself and automatic updates skip that release.
• Capped logs: container logs keep at most 5 × 10 MB per service instead of growing until the disk is full.
• Update section: "Check now" responds right away and leaves its result on screen; updates show a progress bar.

Releases

• Each image is started and checked before it is published, and release tags must be vX.Y.Z.
• Base images are pinned; dependency updates arrive as grouped pull requests.

The first update to this version still runs the old way; the safeguards apply from the next one.

No database changes.