Stop a disabled list item answering the keyboard

Plan step 12, containment.md C-02. `pointer-events-none` blocked the
pointer but not Tab and Enter: the item's `<a href>` stayed in the tab
order and navigated, and nothing announced it disabled. A disabled item
now renders its title as text, is no longer a `data-list-row`, and
carries `aria-disabled="true"`.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Qwx5USif3wFFmxtHg5U1g9

resources/views/components/list-item.blade.php

@@ -13,7 +13,9 @@
      `link` makes the whole item the link. Otherwise, to make it open something while its trailing
      controls keep their own presses, give it `data-list-row` and put `data-list-open` on the one
      control that opens — see resources/js/list-rows.js. `selected` (true) is M3's selected item,
-     in secondary-container; `disabled` greys it. --}}
+     in secondary-container; `disabled` greys it to 38%, drops its link and announces it
+     `aria-disabled` — M3's states model treats disabled as not interactive, so a disabled item
+     answers neither the pointer nor the keyboard. --}}
 
 @props([
     'title' => null,
@@ -32,7 +34,7 @@
 ])
 
 @php
-    $isLink = filled($link);
+    $isLink = filled($link) && ! $disabled;
     $lines = (filled($overline) ? 1 : 0) + (filled($description) ? 1 : 0);
     $initials = filled($avatar) && ! str_contains((string) $avatar, '/') && ! str_contains((string) $avatar, '.');
 @endphp
@@ -42,6 +44,7 @@
     data-list-item
     @if ($isLink) data-list-row @endif
     @if ($selected) data-selected @endif
+    @if ($disabled) aria-disabled="true" @endif
     {{ $attributes->class([
         'relative flex items-center gap-3 px-4 text-on-surface',
         'min-h-14 py-2' => $lines === 0,

tests/Feature/Components/ListTest.php

@@ -38,6 +38,15 @@ it('makes a linked item a row that opens from anywhere', function () {
         ->toContain('wire:navigate');
 });
 
+it('leaves a disabled item out of the keyboard and announces it disabled', function () {
+    expect((string) $this->blade('<x-list-item title="Settings" link="/settings" icon="settings" disabled />'))
+        ->toContain('aria-disabled="true"')
+        ->toContain('pointer-events-none text-on-surface/38')
+        ->not->toContain('href="/settings"')
+        ->not->toContain('data-list-open')
+        ->not->toContain('data-list-row');
+});
+
 it('marks a selected item and takes controls in its slots', function () {
     expect((string) $this->blade('<x-list-item title="Anna" :selected="true"><x-slot:leading><input type="checkbox"></x-slot:leading><x-slot:end><button>⋮</button></x-slot:end></x-list-item>'))
         ->toContain('data-selected')