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/views/filament/partials/environment-banner.blade.php

@@ -0,0 +1,22 @@
+{{-- Rendered at the very top of every page in the panel, on every install.
+
+     The failure this exists for runs in one direction only: mistaking a real
+     deployment for a throwaway copy, not the other way round. Nobody edits a
+     local clone carefully because they think it is production — the mistake
+     that costs something is the reverse. So `local` stays silent, and
+     anything else says so, loudly in the one case that matters. --}}
+
+@unless (app()->environment('local'))
+    <div
+        role="status"
+        @class([
+            'w-full py-1 text-center text-xs font-semibold tracking-wide text-white uppercase',
+            'bg-danger-600' => app()->environment('production'),
+            'bg-warning-600' => ! app()->environment('production'),
+        ])
+    >
+        {{ app()->environment('production')
+            ? __('panel.environment.production')
+            : __('panel.environment.other', ['name' => app()->environment()]) }}
+    </div>
+@endunless