Lay the scheme picker out as tiles and pass its attributes to the group

The check sat beside the name and truncated it at four columns; it now
sits in the tile's corner under the swatch dots. Attributes other than
the binding (data-test, class) reach the fieldset, and the dots' ring
follows the selected tile's colour.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01V9NnLxnPp8vaaurb3Z1MFy

tests/Feature/Components/SchemePickerTest.php

@@ -32,6 +32,14 @@ it('draws a radio per generated profile, bound, named and previewing on change',
         ->toContain('style="--swatch-light: #00897b; --swatch-dark: #80cbc4"');
 });
 
+it('puts its other attributes on the group and the binding on the radios', function () {
+    $html = (string) $this->blade('<x-scheme-picker wire:model="colorProfile" data-test="color-profile" class="mt-4" />');
+
+    expect($html)->toMatch('/<fieldset x-data data-scheme-picker class="min-w-0 mt-4" data-test="color-profile">/')
+        ->and(substr_count($html, 'wire:model="colorProfile"'))->toBe(2)
+        ->and(substr_count($html, 'data-test="color-profile"'))->toBe(1);
+});
+
 it('keeps its inline styles to the scheme file\'s checked colours', function () {
     File::put($this->path, json_encode([
         'default' => 'indigo',