Added PUID and PGID environment variable support

entrypoint.sh

@@ -0,0 +1,15 @@
+#!/bin/sh
+
+PUID=${PUID:-1000}
+PGID=${PGID:-1000}
+
+groupmod -o -g "$PGID" app
+usermod -o -u "$PUID" app
+
+echo User UID: $(id -u app)
+echo User GID: $(id -g app)
+
+echo "Starting uvicorn..."
+
+# Execute the uvicorn command with any additional arguments
+exec su-exec "app" uvicorn spoolman.main:app "$@"