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

testbench.yaml

@@ -0,0 +1,23 @@
+laravel: '@testbench'
+
+providers:
+  - Livewire\LivewireServiceProvider
+  - BladeUI\Icons\BladeIconsServiceProvider
+  - NoNameWeb\LivewireMaterial\LivewireMaterialServiceProvider
+  - Workbench\App\Providers\WorkbenchServiceProvider
+
+env:
+  - APP_NAME="Livewire Material"
+  - MATERIAL_SHOWCASE=true
+
+workbench:
+  start: '/material'
+  install: true
+  # `npm run build` writes into workbench/public/build; `composer serve` links it into
+  # the skeleton's public folder, which is where Laravel's Vite looks for the manifest.
+  sync:
+    - from: workbench/public/build
+      to: public/build
+  discovers:
+    web: false
+    views: false