Scanning is now controlled per server and per app. Each server downloads
the Grype database from its default source.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The gate treated a busy server scan lock as a scan error after 120 s, so a gated
deploy with Block failed while another scan ran. It now waits in steps, bounded by the
deployment job timeout, and still honors a cancel. The lock TTL now covers the sum
of the scan step timeouts.