caddy v2.11.4-2 — busybox diagnostic toolkit in sidecars Adds a busybox 1.37.0-musl static toolkit (build-time applet symlinks, ReadOnly-rootfs-safe) for in-sidecar diagnostics; catalog at 3.0.0. Modules unchanged from v2.11.4-1: rate_limit + dns.providers.cloudflare (build-time asserted).