refactor: replace custom CRM with Monica fork

app/Models/Instance/Cron.php

@@ -0,0 +1,27 @@
+<?php
+
+namespace App\Models\Instance;
+
+use Illuminate\Database\Eloquent\Model;
+
+class Cron extends Model
+{
+    /**
+     * The attributes that are mass assignable.
+     *
+     * @var array<string>
+     */
+    protected $fillable = [
+        'command',
+        'last_run',
+    ];
+
+    /**
+     * The attributes that should be cast to native types.
+     *
+     * @var array<string, string>
+     */
+    protected $casts = [
+        'last_run' => 'datetime',
+    ];
+}