Registers CatalogPlugin with the admin panel so catalog Filament
resources auto-discover, and adds the EvCompany model/migration/
factory plus its Filament resource (auto-generated slug on create).
Implements T1.1-T1.4: Spatie role/permission seeding, Sanctum token
issuance for customer channels and the FastAPI agent (with an
ability-exact-match middleware to tell them apart), Filament admin
panel access restricted to admin-tier roles with the navigation group
order, and skeleton BookingPolicy/RoutePolicy gated on the seeded
permissions ahead of their models landing in later phases.
Nyan Lin Paing