No suport of env vars in main action

Codex doesn't have access to env vars defined either in the step or job level, e.g.:

- name: Run Codex to assess the plan  
  id: codex_assess  
  uses: openai/codex-action@main  
  env:  
    GH_TOKEN: ${{ steps.generate_token.outputs.token }} 

If my prompt instructs to use gh, Codex will fail because:

bash -lc 'gh issue view 47 --json number,title,body,state,assignees,author,labels,comments' in /home/runner/work/my/repo exited 4 in 2.24s:
gh: To use GitHub CLI in a GitHub Actions workflow, set the GH_TOKEN environment variable. Example:
  env:
    GH_TOKEN: ${{ github.token }}

Start by tracing how the action launches Codex and which environment is passed from the GitHub Actions step and job. Reproduce the reported gh issue view failure, then verify that configured variables such as GH_TOKEN reach the command and that the example workflow succeeds.