Let the admin choose one of eight colour profiles

Indigo (the default), Blue, Teal, Green, Amber, Rose and Violet in the
Vibrant style and Graphite in the Neutral style are generated from
config into the stylesheet. Admin settings opens with a colour profile
card: a swatch previews the profile on the page, and Save Settings
stores it as color_profile, which AppServiceProvider hands to the
package's resolver, so every page, mail and error page wears it. An
unknown profile is refused, and a saved one that disappears falls back
to indigo.

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

tests/Feature/ColourProfileTest.php

@@ -0,0 +1,36 @@
+<?php
+
+use App\Models\Setting;
+use App\Models\User;
+use Illuminate\Auth\Notifications\ResetPassword;
+use NoNameWeb\LivewireMaterial\Support\Scheme;
+
+test('every page wears the colour profile the admin saved, indigo until then', function () {
+    $this->get(route('upload'))->assertOk()->assertSee('({"scheme":"indigo",', false);
+
+    Setting::set('color_profile', 'graphite');
+
+    $this->get(route('upload'))->assertSee('({"scheme":"graphite",', false);
+    $this->get('/s/does-not-exist')->assertNotFound()->assertSee('({"scheme":"graphite",', false);
+});
+
+test('a saved profile that no longer exists falls back to the default', function () {
+    Setting::set('color_profile', 'ocean');
+
+    expect(Scheme::profile())->toBe('indigo');
+    $this->get(route('upload'))->assertSee('({"scheme":"indigo",', false);
+});
+
+test('mails take the saved colour profile', function () {
+    Setting::set('color_profile', 'rose');
+
+    $html = (string) (new ResetPassword('token'))->toMail(User::factory()->create())->render();
+
+    expect($html)->toContain('background-color: '.Scheme::profiles()['rose']['light']['primary'])
+        ->not->toContain('background-color: '.Scheme::profiles()['indigo']['light']['primary']);
+});
+
+test('the stylesheet carries all eight profiles', function () {
+    expect(array_keys(Scheme::profiles()))->toBe(['indigo', 'blue', 'teal', 'green', 'amber', 'rose', 'violet', 'graphite'])
+        ->and(file_get_contents(resource_path('css/material-scheme.css')))->toContain("[data-scheme='graphite'][data-theme='dark']");
+});