Give an unlabelled checkbox, radio or switch a 48px target

A selection control with a label is pressed anywhere along its row, but
one without — a table's "select all", a row's tick — was only its 18, 20
or 32px box, because the 40px state layer is a ::before that catches no
pointer. The box now wears the shared touch-target utility, which M3 asks
for on all three (checkbox, radio and switch specs: target size 48dp).

Plan step 13, finding IN-03.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Qwx5USif3wFFmxtHg5U1g9

resources/views/components/checkbox.blade.php

@@ -6,7 +6,10 @@
      partly ticked: HTML has no attribute for it, so the input is marked `data-indeterminate` and
      resources/js/field.js keeps the property in step, on load and after every morph. Errors are
      read from the bag under the `wire:model` name. Every other attribute reaches the `<input>`
-     (resources/css/components/selection.css). --}}
+     (resources/css/components/selection.css).
+
+     Without a label — a "select all" in a table header, a row's tick — the row is only the 18px box,
+     so the box carries `touch-target` and catches presses over M3's 48px minimum. --}}
 
 @props([
     'label' => null,
@@ -30,7 +33,10 @@
         'items-center' => blank($hint),
         'flex-row-reverse justify-between' => $right,
     ])>
-        <span data-checkbox @class(['mt-[3px]' => filled($hint)])>
+        <span data-checkbox @class([
+            'mt-[3px]' => filled($hint),
+            'touch-target' => blank($label) && blank($hint),
+        ])>
             <input
                 {{ $attributes->except(['class', 'id', 'wire:key']) }}
                 id="{{ $id }}"