Add pr template for standardized contribution process

.github/PULL_REQUEST_TEMPLATE/pull_request_template.md

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+# Pull Request Template
+
+## Description
+What does this PR do?  
+Link related issue: #(issue number)
+
+---
+
+## Visual Reference (if applicable)
+Screenshot/GIF:  
+![Screenshot](link)
+
+---
+
+## Type of Change
+- [ ] Bug fix  
+- [ ] New feature  
+- [ ] Documentation update  
+- [ ] Code refactor  
+- [ ] Test update  
+- [ ] Other: ___________
+
+---
+
+## Checklist
+- [ ] Code follows guidelines  
+- [ ] Documentation added (if needed)  
+- [ ] Tests added (if needed)  
+- [ ] All tests passing
+
+---
+
+## How was this tested?
+Explain briefly how you verified this works.
+
+---
+
+## Additional Notes
+(Optional) Anything else to mention?