- Updated the Node.js version in .node-version and package.json to 20.19.0.
- Revised README.md and docs/dev.md to reflect the new minimum Node.js requirement.
- Adjusted setup-node action to use the version specified in .node-version for consistency.
- Removed the pnpm installation step and replaced it with a setup command using corepack.
- Ensured Node.js version 20.12.0 is still configured with pnpm caching for dependency management.