March 2025 monthly summary for UKHO/Shop-Facade focusing on observability improvements and reliability of Graph API health checks. Key feature delivered: Graph API Health Check Logging Visibility, achieved by updating the health check logging level from Debug to Information and extending tests to assert correct log level and event IDs for healthy and unhealthy scenarios, thereby improving health check visibility and test robustness. Major bugs fixed: none reported for this repo this month. Overall impact and accomplishments: enhanced monitoring visibility for Graph API health checks, enabling quicker diagnostics, better incident response, and more reliable health signals for downstream systems, contributing to reduced MTTR and improved user experience. Technologies/skills demonstrated: .NET logging configuration, health check patterns, unit/integration testing, mutation-testing awareness, and test-driven improvement practices.