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>

app/Support/Health/Check.php

@@ -0,0 +1,25 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Support\Health;
+
+interface Check
+{
+    /**
+     * Key used for translations and for identifying the check on the command
+     * line. Kebab-case.
+     */
+    public function key(): string;
+
+    /**
+     * Permission a user must hold to be shown this result, or null when the
+     * result reveals nothing that needs guarding.
+     *
+     * The inbox check counts people waiting for a reply, and who may know that
+     * is the same question as who may read the inbox.
+     */
+    public function permission(): ?string;
+
+    public function run(): Finding;
+}