Worked on backend development for the guardian/grid repository, focusing on authentication stability. Delivered an enhancement by extending the Panda authentication token grace period to 24 hours, updating the apiGracePeriod parameter in PandaAuthenticationProvider.scala within the rest-lib module. This change reduced authentication churn and improved the login experience for workflows dependent on token validity. The work was implemented using Scala and aligned with ongoing efforts to improve system reliability and user experience. No additional features or bug fixes were shipped during this period, but the update was production-ready with a clear audit trail, reflecting a targeted and methodical engineering approach.