feat: add codex pr reviewer

[AlexKaravaev]

Add a codex pr review action, with allowing only members of orb-platform team as the ones whos pr will be reviewed

[Copilot]

Pull request overview

Adds a GitHub Actions workflow to automatically run Codex-based PR reviews, gated so only PRs authored by members of the orb-platform team (and non-draft PRs) are reviewed and commented on.

Changes:

• Introduces an authorize job that checks PR author membership in the orb-platform GitHub team.
• Runs openai/codex-action to generate review feedback for eligible PRs.
• Posts the generated feedback back to the PR as an issue comment.

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[github-actions]

No concrete blocking issues found in the PR changes.

I reviewed the new .github/workflows/codex-pr-review.yaml workflow for authorization, permissions, PR-controlled input handling, and comment posting behavior. The added team gate, read-only Codex sandbox, pinned actions, and env-based comment body handling look reasonable for the intended automated PR review flow.

[github-actions]

No concrete merge-blocking issues found in the added workflow.

[Qbicz]

thanks!