feat(mailbox): Implement cinematic UX and user tiers

- Added Spatie roles (free, pro, enterprise, admin) and access scopes
- Implemented delayed, cinematic mailbox provisioning animation
- Fixed GSAP and SVG collision issues on creation overlay
- Improved component sync with livewire refresh
- Added feature tests for tier systems and fixed RegistrationTest

app/Livewire/Auth/Register.php

@@ -35,6 +35,7 @@ class Register extends Component
         $validated['password'] = Hash::make($validated['password']);
 
         event(new Registered(($user = User::create($validated))));
+        $user->assignRole('free');
 
         Auth::login($user);