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>

lang/en/site.php

@@ -0,0 +1,20 @@
+<?php
+
+declare(strict_types=1);
+
+/*
+ * Texts the public API returns to the public frontend, in the language the
+ * visitor is browsing in. They are rendered by the frontend as-is.
+ */
+
+return [
+    'telemetry' => [
+        'disabled' => 'Not-found reporting is disabled on this server.',
+        'forbidden' => 'Invalid ingest token.',
+    ],
+
+    'applications' => [
+        'received' => 'We got your message. We will get back to you as soon as we can.',
+        'closed' => 'We are not accepting messages right now. Please try again later.',
+    ],
+];