Worked on enhancing the reliability of unstructured JSON handling within the kubernetes/kubernetes repository, focusing on backend development using Go. Addressed a bug related to incorrect uint64 to int64 conversions in the structToUnstructured function by implementing a dedicated helper to prevent overflow issues. Stabilized and expanded the DeepCopyJSONValue test suite to ensure round-trip correctness, thereby improving the robustness of JSON value copying for Kubernetes resources. All changes were thoroughly tested and committed as part of a targeted bug fix, reflecting a careful approach to code safety and correctness in Go-based backend systems for large-scale infrastructure projects.