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>

core/Cargo.lock

@@ -80,7 +80,7 @@ checksum = "a23eb6b1614318a8071c9b2521f36b424b2c83db5eb3a0fead4a6c0809af6e61"
 
 [[package]]
 name = "archipelago"
-version = "1.7.47-alpha"
+version = "1.7.48-alpha"
 dependencies = [
  "anyhow",
  "archipelago-container",

core/archipelago/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "archipelago"
-version = "1.7.47-alpha"
+version = "1.7.48-alpha"
 edition = "2021"
 description = "Archipelago Bitcoin Node OS - Native backend"
 authors = ["Archipelago Team"]