feat: add multi-user management and secure LuCI access

deploy/server/entrypoint.sh

@@ -0,0 +1,9 @@
+#!/bin/sh
+set -eu
+
+# Existing releases ran as root, so an already-populated named volume may be
+# root-owned. Repair only the dedicated data volume before dropping privilege.
+mkdir -p /data
+chown -R rmm:rmm /data
+
+exec su-exec rmm:rmm "$@"