pull_request_template.md

Summary

Related Issue

Closes #

Type of Change

• Bug fix
• New feature
• Refactor / code cleanup
• Documentation update
• CI / build system change

Checklist

• Code builds without warnings (cmake --build with -Wall -Wextra -Werror)
• I have tested this change manually
• I have updated CHANGELOG.md under [Unreleased]
• I have updated the README.md if behaviour or CLI options changed
• CI (GitHub Actions) passes on my branch

Test Plan

Screenshots / Logs (if applicable)