ci(ui): add github workflows and issue templates

.github/PULL_REQUEST_TEMPLATE.md

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+## Description
+
+<!-- Brief description of changes -->
+
+## Type of Change
+
+- [ ] Bug fix (non-breaking change that fixes an issue)
+- [ ] New feature (non-breaking change that adds functionality)
+- [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
+- [ ] Documentation update
+
+## Checklist
+
+- [ ] I have followed the [Contributing Guidelines](CONTRIBUTING.md)
+- [ ] Lint passes (`npm run lint`)
+- [ ] Build succeeds (`npm run build`)
+- [ ] I have tested my changes locally
+
+## Screenshots (if applicable)
+
+<!-- Add screenshots here -->
+
+## Related Issues
+
+<!-- Link any related issues: Closes #123 -->