1bit serve: --mtp (up to 3.4x), --parallel (up to 5.8x), --adaptive (Vulkan + ROCm overflow), --device rocm - #41

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/upload-artifact@v4. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/