[codex] Fix welcome workflow inputs

[BobbyWang0120]

Summary

• update actions/first-interaction@v3 input keys to the current snake_case names
• preserve the existing first-issue and first-PR welcome messages
• fix the Welcome / welcome workflow failure caused by the action not receiving its required inputs

Validation

• ruby -e 'require "yaml"; YAML.load_file(".github/workflows/welcome.yml")'
• git diff --check

Root cause: the workflow used deprecated hyphenated input names (repo-token, pr-message, issue-message) while actions/first-interaction@v3 requires repo_token, pr_message, and issue_message.

Summary by CodeRabbit

Release Notes

• Chores
  • Updated internal GitHub Actions workflow configuration to use standardized parameter naming conventions.

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Note: This update contains no user-facing changes and is purely an internal infrastructure maintenance task.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: ASSERTIVE

Plan: Pro

Run ID: 027a2ca8-5765-4bf5-a985-785d09122e16

📥 Commits

Reviewing files that changed from the base of the PR and between 411afb3 and 5fddede.

📒 Files selected for processing (1)

• .github/workflows/welcome.yml

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📝 Walkthrough

Walkthrough

GitHub Actions workflow file updated to rename parameter inputs in the first-interaction action step from hyphenated format to snake_case format, maintaining all existing values and functionality.

Changes

Cohort / File(s)	Summary
GitHub Actions Configuration .github/workflows/welcome.yml	Renamed action step inputs from repo-token, pr-message, and issue-message to repo_token, pr_message, and issue_message respectively in the actions/first-interaction@v3 step.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~2 minutes

🚥 Pre-merge checks | ✅ 3

✅ Passed checks (3 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title '[codex] Fix welcome workflow inputs' directly and specifically describes the main change: fixing workflow input parameter names in the welcome workflow.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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