Verify CodeQL workflow permissions are correctly configured

[Copilot]

This PR addresses the security requirement to ensure CodeQL workflows have proper permissions configuration.

Analysis Results

After thorough investigation of all GitHub workflow files, I found that the repository is already correctly configured according to the security requirements:

Current Configuration (.github/workflows/codeql.yml)

The CodeQL workflow that uses github/codeql-action/analyze has the proper permissions structure:

permissions:
  contents: read

jobs:
  analyze:
    permissions:
      contents: read
      actions: read  # for github/codeql-action/init to get workflow details
      security-events: write  # for github/codeql-action/analyze to upload SARIF results

✅ Requirements Met:

• security-events: write permission is defined at the job-level (line 23)
• No security-events permission at the root-level (only contents: read)
• Only one workflow uses github/codeql-action/analyze

Validation Performed

• Comprehensive scan of all workflow files in .github/workflows/
• Automated validation script to check permissions configuration
• Unit tests to verify correct structure
• YAML syntax validation for all workflow files

Other Workflows

The ossf-scorecard.yml workflow uses github/codeql-action/upload-sarif (not analyze) and is also correctly configured with job-level permissions.

No code changes were required as the repository already follows GitHub security best practices for CodeQL workflow permissions.

Fixes #11.

---

💡 You can make Copilot smarter by setting up custom instructions, customizing its development environment and configuring Model Context Protocol (MCP) servers. Learn more Copilot coding agent tips in the docs.