A Laravel Package for Post-Authentication Multi-Tenancy with Automatic Tenant Switching

Multi-tenancy in Laravel is not new, but many implementations assume tenancy is resolved before authentication. That works well for some architectures, especially subdomain-first systems, but it does not fit every application. In many real-world SaaS platforms, the tenant context is determined after a user logs in or registers. The application needs to inspect the authenticated user, determine which tenant they belong to, and then switch the database connection or tenant context automatically.