Harun Alkawser enhanced the SELISEdigitalplatforms/l3-react-blocks-construct repository by enabling SonarQube test coverage reporting within the CI workflow. He achieved this by uncommenting test execution steps to generate coverage data and refining the handling of coverage data paths, ensuring accurate metrics across builds. Harun also introduced a unit test to support the SonarQube integration, validating the end-to-end flow of coverage information. Working primarily with Shell and YAML, he focused on CI/CD and testing practices to automate quality measurement. This work improved visibility into code coverage for stakeholders and established a foundation for future quality gates in the project.