Flux durch TallStackUI 4 ersetzt

- TallStackUI 4 (MIT) statt Flux; Komponenten mit Präfix ts- (<x-ts-…>)
- Layouts, Login-, Passwort-, 2FA- und Einstellungsseiten neu aufgebaut
- Livewire-Skripte explizit in beiden Layouts, damit Alpine auch auf den
  Fortify-Seiten ohne Livewire-Komponente läuft
- Dark Mode über tallstackui_darkTheme(), ohne Aufblitzen beim Laden
- Registrierungs-View und ungenutzte Layout-Varianten entfernt
- Test: Seiten laden keine Ressourcen von fremden Hosts (Vorgabe "alles lokal")

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

resources/views/livewire/auth/confirm-password.blade.php

@@ -1,36 +1,28 @@
 <x-layouts::auth :title="__('Confirm password')">
     <div class="flex flex-col gap-6">
-        <x-auth-header
-            :title="__('Confirm password')"
-            :description="__('This is a secure area of the application. Please confirm your password before continuing.')"
-        />
+        <x-auth-header :title="__('Confirm password')"
+                       :description="__('This is a secure area of the application. Please confirm your password before continuing.')" />
 
         <x-auth-session-status class="text-center" :status="session('status')" />
 
-        <x-passkey-verify
-            options-route="passkey.confirm-options"
-            submit-route="passkey.confirm"
-            :label="__('Confirm with passkey')"
-            :loading-label="__('Confirming...')"
-            :separator="__('Or confirm with password')"
-        />
+        <x-passkey-verify options-route="passkey.confirm-options"
+                          submit-route="passkey.confirm"
+                          :label="__('Confirm with passkey')"
+                          :loading-label="__('Confirming...')"
+                          :separator="__('Or confirm with password')" />
 
         <form method="POST" action="{{ route('password.confirm.store') }}" class="flex flex-col gap-6">
             @csrf
 
-            <flux:input
-                name="password"
-                :label="__('Password')"
-                type="password"
-                required
-                autocomplete="current-password"
-                :placeholder="__('Password')"
-                viewable
-            />
+            <x-ts-password name="password"
+                           :label="__('Password')"
+                           required
+                           autocomplete="current-password"
+                           :placeholder="__('Password')" />
 
-            <flux:button variant="primary" type="submit" class="w-full" data-test="confirm-password-button">
+            <x-ts-button submit class="w-full" data-test="confirm-password-button">
                 {{ __('Confirm') }}
-            </flux:button>
+            </x-ts-button>
         </form>
     </div>
 </x-layouts::auth>