- admin_reserve.go, reserve.go: wrap unchecked QueryRow.Scan with error handling - bookings.go: replace next-booking overlap check with COUNT(*) in UpdateBookingServicesHandler - bookings.go: wrap EditBookingHandler in a transaction with EvictPendingReleaseOverlapping - bookings.go: add error handling for QueryRow and Evict in ConfirmBookingHandler - bookings.go: add error handling and eviction reorder in AdminRescheduleBookingHandler Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent) Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>