March 2025 monthly summary for PSMRI/Common-API: Delivered security-focused authentication improvements and code quality cleanup that reduce risk and improve maintainability. Key changes include JWT-based authentication refinement, robust session checks, and explicit Set-Cookie handling with SameSite/Secure attributes, plus a SonarCloud-compliance cleanup removing commented-out code in CookieUtil and JWT flow. Impact: stronger security posture, more reliable authentication, and reduced technical debt. Technologies: JWT, cookie security attributes, session management, SonarCloud, code hygiene. Commits involved: d85819e949df28fdb1aa5cd6d6e0ceb4859e6fcf; 016f2a2508fa7378c0785263a31879bb7d9ef356; 74c35d98125ccaf63b31c5e273270bd347d2cd95.

December 2024: Delivered security and performance enhancements for PSMRI/MMU-API. Implemented a centralized User Authentication System with robust JWT handling and environment-wide configuration alignment, and introduced a Redis-based cache-aside layer for user data to reduce DB load and accelerate reads. Performed a minor serialization adjustment by removing @Expose annotations to align with Redis storage changes. These changes improved security posture, scalability, and data access performance.