fix(code-review): post the review comment from the workflow, not the model - #27

Process completed with exit code 1.

Failed to setup GitHub token: Error: Workflow validation failed. The workflow file must exist and have identical content to the version on the repository's default branch. If you're seeing this on a PR when you first add a code review workflow file to your repository, this is normal and you should ignore this error. If you instead wish to use this action with a custom GitHub token or custom GitHub app, provide a `github_token` in the `uses` section of the app in your workflow yml file.

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, oven-sh/setup-bun@735343b667d3e6f658f44d0eca948eb6282f2b76. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/