pull_request_template.md

Description

Briefly describe the changes.

🔗 Related Issue

Closes #123 or relates to #456
*(Optional: You can also open a pull request directly from an issue — GitHub will auto-link it.)

✅ Checklist

• My code follows the project's coding style
• I have linked the relevant issue in the PR description
• I have manually tested the changes
• All CI checks have passed