Potential fixes for 2 code scanning alerts

[cinderellasecure]

Potential fixes for 2 code scanning alerts from the Copilot AutoFix: Missing Permissions in Workflows security campaign:

• https://github.com/github/file-attachment-element/security/code-scanning/2
  To fix this problem, we should add a permissions block with least privilege settings. The recommended minimal starting point is contents: read, which allows the workflow to read repository contents (necessary for actions such as checkout). Since this workflow publishes to npm (not interacting with GitHub issues, pull requests, or other entities) and makes no apparent changes to the repository itself, contents: read is likely sufficient. The permissions block should be added at the job level (under publish-npm:) for minimal scope. The change requires modifying the YAML specification in .github/workflows/publish.yml.

• https://github.com/github/file-attachment-element/security/code-scanning/1
  To fix the issue, add a permissions: block specifying limited read access to the contents scope. This block should be placed either at the root level of the workflow, directly below the name and on entries, or within the relevant job. Given that all jobs in this workflow appear to only read contents (e.g., checkout, build, test) and no write actions (such as publishing releases or updating anything on GitHub itself) are performed, restricting permissions to contents: read is appropriate. Modify the .github/workflows/nodejs.yml file to add the following block before jobs::

  permissions:
  contents: read

  This change restricts the GITHUB_TOKEN permissions in the workflow to only what is necessary for the steps as shown.

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Suggested fixes powered by Copilot Autofix. Review carefully before merging.

[Copilot]

Pull Request Overview

This PR adds read-only permissions for repository contents to GitHub Actions workflows, implementing the principle of least privilege for workflow security.

• Adds explicit permissions configuration to limit workflow access
• Applies to both the publish workflow and the Node.js CI workflow

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
.github/workflows/publish.yml	Adds job-level contents: read permission to the publish-npm job
.github/workflows/nodejs.yml	Adds workflow-level contents: read permission to the CI workflow

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