Keep the current section lit while a Livewire component updates

<x-section-nav> and <x-app-shell> mark an item current when its URL is
the request's. While a Livewire component on the page re-renders, the
request is Livewire's update endpoint, so no section or destination
stayed lit after the morph. Both now compare with the page's URL from
Livewire::originalUrl() during a Livewire update request; a normal
request compares exactly as before.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01RHoXZSHc8gGpZjFmA5fPc2

tests/Feature/Components/TabsTest.php

@@ -80,3 +80,28 @@ it('marks the section whose url is the request\'s, and wraps many sections onto
         ->toMatch('/data-tab\s+aria-current="page"\s*>\s*<span data-tab-content>\s*<span class="truncate">S3/')
         ->not->toContain('wire:navigate');
 });
+
+it('keeps the page\'s section current while a Livewire component on it updates', function () {
+    Livewire::component('section-nav-probe', new class extends Component
+    {
+        public string $page = '';
+
+        public function mount(): void
+        {
+            $this->page = url()->current();
+        }
+
+        public function render(): string
+        {
+            return '<div><x-section-nav :items="[[\'title\' => \'Here\', \'url\' => $page], [\'title\' => \'Elsewhere\', \'url\' => \'/elsewhere\']]" no-wire-navigate /></div>';
+        }
+    });
+
+    $current = '/href="[^"]*\/livewire-unit-test-endpoint\/[^"]*"\s+data-tab\s+aria-current="page"/';
+
+    $probe = Livewire::test('section-nav-probe');
+
+    expect($probe->html())->toMatch($current)
+        ->and($probe->call('$refresh')->html())->toMatch($current)
+        ->and(substr_count($probe->html(), 'aria-current="page"'))->toBe(1);
+});