workflows: allow public review requests (#9)

Remove collaborator permission gating so any valid PR comment can request a Codex review.

Co-authored-by: Cursor <cursoragent@cursor.com>

Author: Pie8851

.github/workflows/codex-openai-review.yml

@@ -85,8 +85,6 @@ jobs:
               if (!context.payload.issue.pull_request) return core.setOutput('eligible', 'false');
               const command = context.payload.comment.body.trim();
               if (!/^@codex(?:\s+review(?:\s+[\s\S]+)?)?\s*$/i.test(command)) return core.setOutput('eligible', 'false');
-              const { data: permission } = await github.rest.repos.getCollaboratorPermissionLevel({ owner: context.repo.owner, repo: context.repo.repo, username: context.payload.comment.user.login });
-              if (!['admin', 'maintain', 'write'].includes(permission.permission)) return core.setOutput('eligible', 'false');
               number = context.payload.issue.number;
               requestCommentId = String(context.payload.comment.id);
             } else if (event === 'workflow_dispatch') {