hyp daemon status cleans what it reads out of status.json, plus the etag and probe-error residue from #681 (#776) - #777

Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/setup-node@v4. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/