Events System API

Production-style multi-tenant SaaS backend implementing strict tenant isolation via a global Eloquent scope, three-role authorization (super admin / tenant admin / end-user), and a transactional ticket-purchase service that uses row-level locking to prevent overselling under concurrency. Authentication is handled by Laravel Sanctum personal access tokens. Routes are segmented by audience (Super, Admin, User, Public) and protected by a two-layer authorization model, middleware gates routes, policies gate records.