**Breaking**: from data["estimated_bytes"] to data["offer"]["estimated_bytes"] in maintain check and maintain semantic commands; semantic plan reports what changed, not what was re-typed; - #250

Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/checkout@v4, actions/setup-node@v4, astral-sh/setup-uv@v5. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/