chore: add github PR template

Author: whoseoyster

.github/pull_request_template.md

@@ -0,0 +1,24 @@
+# Pull Request
+
+## Summary
+
+<!-- Briefly explain what this PR does. -->
+
+## Changes
+
+<!-- List key changes. Keep it concise. -->
+
+- [x] Change 1
+
+## Context
+
+<!-- Why is this needed? Link to relevant Linear issues (e.g., `LINEAR-123`). -->
+
+## Testing
+
+<!-- How did you test this? Include relevant details. -->
+
+- [ ] Unit tests
+- [ ] Manual testing
+- [ ] Postman CI/CD
+- [ ] Other (please specify)