docs(adr): Linux-first Rust port — one core, per-OS backends - #18

Failed with exit code: 1

docs/adr/linux-rust-port.md:88:1 MD004/ul-style Unordered list style [Expected: dash; Actual: plus] https://github.com/DavidAnson/markdownlint/blob/v0.37.4/doc/md004.md

Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/checkout@11d5960a326750d5838078e36cf38b85af677262, DavidAnson/markdownlint-cli2-action@05f32210e84442804257b2a6f20b273450ec8265. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/