Consolidate portable MCPs in Unraid MCPHub

platform/mcphub/casaderoll-entrypoint.sh

@@ -0,0 +1,21 @@
+#!/bin/sh
+set -eu
+
+data_dir=${MCPHUB_SETTING_PATH:-/app/data/}
+case "$data_dir" in
+  */) state_dir=${data_dir%/} ;;
+  *) state_dir=$(dirname "$data_dir") ;;
+esac
+mkdir -p "$state_dir"
+
+# A stable signing key prevents every container recreation from invalidating
+# all logged-in browser sessions.  It lives only in persistent appdata.
+jwt_file="$state_dir/jwt-secret"
+if [ ! -s "$jwt_file" ]; then
+  umask 077
+  python3 -c 'import secrets; print(secrets.token_urlsafe(64))' > "$jwt_file"
+fi
+JWT_SECRET=$(cat "$jwt_file")
+export JWT_SECRET
+
+exec "$@"