fix: refresh Debian bases and remove perl to drop unfixed CVEs - #70
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Base-image security refresh for release v3.0.76.
Remove perl
perlis unused at runtime but pulled in viaipcalcand shipped as the Essentialperl-base, exposing unfixed Debian 12 CVEs: CVE-2026-57433 (Storable), CVE-2026-12087 (Socket), CVE-2026-13221 (regex engine). None are fixed in bookworm (or trixie 5.40.1).ipcalc, replacing its address check with a native IPv4 test in_lib.sh(verified behavior-identical across 16 cases).perl-basein the same layer so the files leave the merged filesystem.Verified in
debian:12.15-slimanddebian:13.6-slim: no perl packages remain and every runtime tool (bash, ip, wg, wg-quick, iptables, dnsmasq, getent, useradd, setpriv, update-ca-certificates) still works.Bump Debian base images
debian:12.14-slim->debian:12.15-slim(Dockerfile + farcaster-go, contrib, test images).debian:13-slim->debian:13.6-slim(pinned to the latest trixie point release, matching the legacy pinning convention).