Initial commit: Pireon Admin — headless admin panel and public API

Laravel 13 + Filament 5 admin panel and REST API for a non-profit developer
collective, backed by the Pireon OAuth identity server. The public site is a
separate, server-rendered application consuming /api/public/v1.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

resources/css/app.css

@@ -0,0 +1,9 @@
+@import 'tailwindcss';
+
+@source '../../vendor/laravel/framework/src/Illuminate/Pagination/resources/views/*.blade.php';
+@source '../../storage/framework/views/*.php';
+
+@theme {
+    --font-sans: 'Instrument Sans', ui-sans-serif, system-ui, sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji',
+        'Segoe UI Symbol', 'Noto Color Emoji';
+}