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/Notifications/ReviewReturned.php

@@ -0,0 +1,60 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Notifications;
+
+use App\Support\ContentTypes;
+use App\Support\ReviewTarget;
+use Filament\Actions\Action;
+use Filament\Notifications\Notification as FilamentNotification;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Notifications\Notification;
+
+/**
+ * Work sent back to whoever asked for the review.
+ *
+ * The half that is easy to forget to build, and the half that decides whether
+ * the review step gets used: an author who has to keep opening the panel to
+ * find out whether anybody looked will stop asking and go back to publishing
+ * things themselves — or to asking in a chat window, where it is not recorded.
+ */
+class ReviewReturned extends Notification
+{
+    public function __construct(
+        public readonly Model $record,
+        public readonly string $note,
+        public readonly ?string $returnedBy = null,
+    ) {}
+
+    /**
+     * @return array<int, string>
+     */
+    public function via(object $notifiable): array
+    {
+        return ['database'];
+    }
+
+    /**
+     * @return array<string, mixed>
+     */
+    public function toDatabase(object $notifiable): array
+    {
+        return FilamentNotification::make()
+            ->title(__('panel.reviews.notification.returned', [
+                'name' => $this->returnedBy ?? __('panel.revisions.system'),
+            ]))
+            // The reason travels with the notification rather than waiting
+            // behind a click: it is the entire content of the message.
+            ->body(ContentTypes::title($this->record).' — '.$this->note)
+            ->icon('heroicon-o-arrow-uturn-left')
+            ->iconColor('danger')
+            ->actions([
+                Action::make('open')
+                    ->label(__('panel.reviews.actions.open'))
+                    ->url(ReviewTarget::url($this->record))
+                    ->markAsRead(),
+            ])
+            ->getDatabaseMessage();
+    }
+}