refactor: replace custom CRM with Monica fork

app/Services/QueuableService.php

@@ -0,0 +1,27 @@
+<?php
+
+namespace App\Services;
+
+use Throwable;
+
+/**
+ * Makes a BaseService queuable using the generic ServiceQueue job.
+ */
+interface QueuableService
+{
+    /**
+     * Execute the service.
+     *
+     * @param  array  $data
+     * @return void
+     */
+    public function handle(array $data): void;
+
+    /**
+     * Handle a job failure.
+     *
+     * @param  \Throwable  $exception
+     * @return void
+     */
+    public function failed(Throwable $exception): void;
+}