Scaffold the Livewire Material package

The skeleton for nonameweb/livewire-material: service provider and config
(unprefixed components, blade-icons' own <x-icon> switched off, an opt-in
showcase at /material), the Testbench Workbench with its Vite build, the
CSS and JS entry points applications import, the Boost guideline and skill
with a drift test, and Gitea CI running Pint, feature tests on PHP 8.4 and
8.5, and browser tests in Chrome, Firefox and Safari.

The plan moved here from SealShare: docs/plans/livewire-material.md.

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

tests/Feature/BoostResourcesTest.php

@@ -0,0 +1,30 @@
+<?php
+
+use Illuminate\Support\Facades\File;
+use Illuminate\Support\Str;
+
+const SKILL_PATH = __DIR__.'/../../resources/boost/skills/livewire-material-development/SKILL.md';
+
+it('gives the skill the frontmatter Boost requires', function () {
+    $skill = File::get(SKILL_PATH);
+
+    expect($skill)
+        ->toStartWith("---\n")
+        ->toContain("\nname: livewire-material-development\n")
+        ->toMatch('/\ndescription: \S.+\n/');
+});
+
+it('names every component in the skill', function () {
+    $skill = File::get(SKILL_PATH);
+
+    $undocumented = collect(File::allFiles(__DIR__.'/../../resources/views/components'))
+        ->filter(fn (SplFileInfo $file): bool => str_ends_with($file->getFilename(), '.blade.php'))
+        ->map(fn (SplFileInfo $file): string => Str::of($file->getRelativePathname())
+            ->beforeLast('.blade.php')
+            ->replace(DIRECTORY_SEPARATOR, '.')
+            ->toString())
+        ->reject(fn (string $component): bool => str_contains($skill, "<x-{$component}"))
+        ->values();
+
+    expect($undocumented)->toBeEmpty();
+});