fix(openclaw): recursively fix permissions on data directory

- Use 'chown -R 1000:1000' and 'chmod -R u+rwX' in the preStart script.

- This ensures all files in /var/lib/openclaw are accessible by the container's node user.

modules/openclaw-podman.nix

@@ -59,9 +59,10 @@ in
     # Copy the declarative config before starting the container
     # This allows OpenClaw to safely write/rename the file at runtime without EBUSY errors
     systemd.services."podman-openclaw".preStart = lib.mkBefore ''
+      mkdir -p /var/lib/openclaw
       cp -f ${./openclaw-config.json} /var/lib/openclaw/openclaw.json
-      chown 1000:1000 /var/lib/openclaw/openclaw.json
-      chmod 644 /var/lib/openclaw/openclaw.json
+      chown -R 1000:1000 /var/lib/openclaw
+      chmod -R u+rwX /var/lib/openclaw
     '';
   };
 }