adds logging and policies

app/Services/ActivityLogger.php

@@ -0,0 +1,29 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Services;
+
+use App\Models\Log;
+
+final class ActivityLogger
+{
+    /**
+     * Log an activity to the database.
+     */
+    public static function log(
+        string $action,
+        ?int $userId = null,
+        ?int $sessionId = null,
+        ?int $categoryId = null,
+        ?array $metadata = null,
+    ): void {
+        Log::create([
+            'user_id' => $userId,
+            'session_id' => $sessionId,
+            'category_id' => $categoryId,
+            'action' => $action,
+            'metadata' => $metadata,
+        ]);
+    }
+}