Auth: convert auth views and verification email to Nova layout

resources/views/auth/partials/onboarding-progress.blade.php

@@ -0,0 +1,27 @@
+@php
+    $steps = [
+        'email' => 'Email',
+        'verified' => 'Verified',
+        'password' => 'Password',
+        'complete' => 'Username',
+    ];
+
+    $currentIndex = array_search($currentStep ?? 'email', array_keys($steps), true);
+    if ($currentIndex === false) {
+        $currentIndex = 0;
+    }
+@endphp
+
+<div class="mb-6">
+    <div class="flex items-center justify-between text-xs sm:text-sm text-gray-600">
+        @foreach($steps as $key => $label)
+            @php $idx = array_search($key, array_keys($steps), true); @endphp
+            <span class="{{ $idx <= $currentIndex ? 'text-gray-900 font-semibold' : '' }}">
+                {{ $label }}
+            </span>
+        @endforeach
+    </div>
+    <div class="mt-2 h-2 w-full bg-gray-200 rounded-full overflow-hidden">
+        <div class="h-full bg-gray-900 rounded-full" style="width: {{ (($currentIndex + 1) / count($steps)) * 100 }}%"></div>
+    </div>
+</div>