refactor: replace custom CRM with Monica fork

app/Models/ModelBinding.php

@@ -0,0 +1,27 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Support\Facades\Auth;
+use Illuminate\Database\Eloquent\Model;
+
+abstract class ModelBinding extends Model
+{
+    /**
+     * Resolve binding.
+     *
+     * @param  string  $value
+     * @param  string|null  $field
+     * @return \Illuminate\Database\Eloquent\Model|null
+     */
+    public function resolveRouteBinding($value, $field = null): ?Model
+    {
+        if (Auth::guest()) {
+            return null;
+        }
+
+        return $this->where('account_id', Auth::user()->account_id)
+            ->where($this->getRouteKeyName(), $value)
+            ->firstOrFail();
+    }
+}