v3.0: Livewire 4 migration and optional passkeys

[produktive]

Summary

• Migrates all authentication pages from Volt/Folio to Livewire 4 single-file components registered via Livewire::addLocation().
• Drops livewire/volt and laravel/folio as package dependencies.
• Adds optional passkey sign-in via laravel/passkeys, including /auth/setup/passkeys and an enable_passkeys setting.
• Fixes the auth setup preview modal stacking so it renders above the settings panel.
• Adds UPGRADE.md with a v2.x → v3.0 migration guide, including Livewire 4 event handler syntax.
• Fixes CI test autoloading for Tests\DuskTestCase and adds CreatesApplication for the Laravel app test harness.

Breaking changes

• Requires Livewire 4 (^4.0)
• Requires PHP 8.2+
• Supports Laravel 12 and 13
• Auth pages are now Livewire 4 SFCs instead of Volt/Folio pages
• Published auth assets must be republished after upgrading (php artisan vendor:publish --tag=auth:assets --force)
• Customized setup pages must replace $el.checked / $el.value with $event.target.checked / $event.target.value in wire:change and wire:blur handlers

Livewire 4 notes for consuming apps

Package setup pages already use the correct syntax. If you override auth setup pages, update event handlers:

wire:change="update('key', $event.target.checked)"
wire:blur="update('key', $event.target.value)"

Alpine $el references inside x-data blocks are unchanged.

Test plan

• vendor/bin/pint --test
• vendor/bin/phpstan analyse
• CI authentication tests pass on PHP 8.2–8.5
• Dusk tests pass
• Fresh install: composer require devdojo/auth:@dev, publish assets/config/migrations, migrate
• Auth routes work: login, register, password reset, two-factor challenge
• /auth/setup loads, toggles show active state, preview modal opens in front of settings
• Passkeys can be enabled at /auth/setup/passkeys and sign-in button appears on login when enabled
• Custom page overrides still work via Livewire::addLocation() in consuming apps