add pull request template

.github/pull_request_template.md

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+## Description
+<!--
+Provide a brief summary of the changes made in this pull request.
+Include the context and reasons for making these changes.
+If this PR fixes an issue, include "Fixes #<issue-number>".
+-->
+
+## Type of Change
+<!-- Please delete options that are not relevant. -->
+- [ ] Bug fix (non-breaking change which fixes an issue)
+- [ ] New feature (non-breaking change which adds functionality)
+- [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
+- [ ] Documentation update
+- [ ] Refactor (code changes that neither fix a bug nor add a feature)
+- [ ] Other (please specify):
+
+## Checklist
+<!-- Check all items that apply: -->
+- [ ] I have followed the coding standards for this project.
+- [ ] My code has been linted and formatted.
+- [ ] I have added tests to cover my changes.
+- [ ] All new and existing tests passed.
+- [ ] I have updated the documentation, if necessary.
+- [ ] The changes require review by another team member (add reviewer).
+
+## How Has This Been Tested?
+<!--
+Describe the tests that you ran to verify your changes.
+Provide instructions so that reviewers can reproduce the test results.
+Include relevant details like the environment, test cases, and any edge cases tested.
+-->
+
+## Related Issues
+<!--
+Link related issues or pull requests if applicable.
+E.g., "Related to #123", "Depends on #456".
+-->
+
+## Screenshots or GIFs (if applicable)
+<!--
+Include screenshots or animated GIFs to show any visual changes.
+-->
+
+## Further Comments
+<!--
+Add any other information that reviewers may find useful.
+Include things like known issues, alternative approaches considered, or design decisions made.
+-->
+