chore: release v1.7.48-alpha

Hotfix: archipelago.service ExecStartPre now mkdirs /run/containers and
/var/lib/containers before the unit's mount-namespace setup tries to bind
them. Without this, fresh nodes that don't have /run/containers (e.g.
nodes provisioned without a prior podman session) fail at the namespace
step with:

  Failed to set up mount namespacing: /run/containers: No such file or directory
  Failed at step NAMESPACE spawning /bin/bash: No such file or directory

Existing nodes don't pick up systemd unit changes via OTA — they need a
one-time `systemctl edit archipelago` adding the same mkdir. ISO installs
from this version forward have the fix baked in.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

image-recipe/configs/archipelago.service

@@ -10,7 +10,7 @@ Environment="ARCHIPELAGO_BIND=127.0.0.1:5678"
 # DEV_MODE disabled in production — enabled via override.conf on dev servers
 Environment="XDG_RUNTIME_DIR=/run/user/1000"
 # + prefix runs these as root (needed for chown/mkdir outside ReadWritePaths)
-ExecStartPre=+/bin/bash -c 'mkdir -p /run/user/1000 && chown archipelago:archipelago /run/user/1000 && chmod 700 /run/user/1000'
+ExecStartPre=+/bin/bash -c 'mkdir -p /run/user/1000 /run/containers /var/lib/containers && chown archipelago:archipelago /run/user/1000 && chmod 700 /run/user/1000'
 ExecStartPre=+/bin/bash -c 'mkdir -p /var/lib/archipelago && chown archipelago:archipelago /var/lib/archipelago && echo "ARCHIPELAGO_HOST_IP=$(hostname -I 2>/dev/null | awk "{print $$1}")" > /var/lib/archipelago/host-ip.env && chown archipelago:archipelago /var/lib/archipelago/host-ip.env'
 ExecStart=/usr/local/bin/archipelago
 Restart=on-failure