docs: add CODE_OF_CONDUCT.md

[yangchunxuan]

Fixes #4.

Added the standard Contributor Covenant Code of Conduct to the root directory to foster a welcoming and inclusive open-source community. Let me know if any further changes are needed!

Summary by CodeRabbit

• Documentation
  • Added a Code of Conduct document with community guidelines and an inclusivity pledge.
  • Defines expected behavior and examples of unacceptable conduct.
  • Outlines enforcement responsibilities and a graduated response process, including warnings and potential bans.

[github-actions]

All contributors have signed the CLA. ✍️✅
_{Posted by the CLA Assistant Lite bot.}

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro Plus

Run ID: bc52f066-576b-4c36-9a49-1435a19c49aa

📥 Commits

Reviewing files that changed from the base of the PR and between 988606b and 4120c97.

📒 Files selected for processing (1)

• CODE_OF_CONDUCT.md

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📝 Walkthrough

Walkthrough

This pull request adds CODE_OF_CONDUCT.md with the Contributor Covenant v2.1 text, including conduct standards, enforcement guidance, and attribution links.

Changes

Community Health File

Layer / File(s)	Summary
Add Code of Conduct document CODE_OF_CONDUCT.md	Adds the full Contributor Covenant code of conduct document with enforcement contact details and reference links.

Estimated code review effort: 1 (Trivial) | ~2 minutes

Related Issues: #4

Suggested Labels: documentation

Suggested Reviewers: None

Poem:
A code of conduct now stands in view,
With pledge and standards clear and true,
A gentle guide for every thread,
To keep the commons well-nurtured.

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Description check	⚠️ Warning	The description is brief and lacks the required template sections for What this changes, Why, and Checklist.	Add the missing template sections, including a short change summary, rationale, and checklist items such as tests/docs status.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly matches the main change: adding a CODE_OF_CONDUCT.md file.
Linked Issues check	✅ Passed	The PR adds CODE_OF_CONDUCT.md with Contributor Covenant v2.1 and the required enforcement contact.
Out of Scope Changes check	✅ Passed	The change appears scoped to the requested community-health file and does not introduce unrelated modifications.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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[coderabbitai]

Caution

Some comments are outside the diff and can’t be posted inline due to platform limitations.

⚠️ Outside diff range comments (1)

CODE_OF_CONDUCT.md (1)

1-14: 📐 Maintainability & Code Quality | 🟠 Major | ⚡ Quick win

Add the missing enforcement/contact section.

This stops after “Our Pledge” and leaves out the Contributor Covenant v2.1 enforcement/reporting details. Please include the required enforcement contact (conduct@kakunin.ai or the maintainer’s preferred address) and the remaining standard sections so the policy is actionable.

🤖 Prompt for AI Agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

In `@CODE_OF_CONDUCT.md` around lines 1 - 14, The Code of Conduct is incomplete
because it stops after the pledge and omits the required reporting and
enforcement details. Update the Contributor Covenant content to include the
missing standard v2.1 sections, especially the enforcement/reporting contact
using conduct@kakunin.ai or the maintainer’s preferred address. Keep the
document consistent with the Contributor Covenant structure already started in
the file and ensure the added sections make the policy actionable.

🤖 Prompt for all review comments with AI agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

Outside diff comments:
In `@CODE_OF_CONDUCT.md`:
- Around line 1-14: The Code of Conduct is incomplete because it stops after the
pledge and omits the required reporting and enforcement details. Update the
Contributor Covenant content to include the missing standard v2.1 sections,
especially the enforcement/reporting contact using conduct@kakunin.ai or the
maintainer’s preferred address. Keep the document consistent with the
Contributor Covenant structure already started in the file and ensure the added
sections make the policy actionable.

---

ℹ️ Review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro Plus

Run ID: 82edc375-a2f4-499a-9e95-59a458154daf

📥 Commits

Reviewing files that changed from the base of the PR and between 41f5742 and 988606b.

📒 Files selected for processing (1)

• CODE_OF_CONDUCT.md

[nqzai]

Thanks for adding this, @yangchunxuan! 🙏 I pushed a commit to your branch that fills in the remaining standard Contributor Covenant v2.1 sections (Our Standards, Enforcement Responsibilities, Scope, Enforcement, the Enforcement Guidelines ladder, and Attribution), with conduct@kakunin.ai as the reporting contact — that resolves the CodeRabbit note. You're still the author of the PR. Really appreciate the contribution!

[yangchunxuan]

I have read the CLA Document and I hereby sign the CLA

[nqzai]

@all-contributors please add @yangchunxuan for doc

[allcontributors]

@nqzai

I've put up a pull request to add @yangchunxuan! 🎉