Adding device's field in get_alert_rule and list-alert-rules API function (new) (#14481)

* Adding device's field in get_alert_rule and lis-alert-rules API function

* Converting SQL request for list/get_alert_rules to Eloquent (thanks a lot to Murrant)

* Manually added #14500 to pass pipeline

* Fixing StyleCI error + trying to fix PHPStan errors

* Trying to fix PHPStan errors (part 2)

app/Http/Resources/AlertRule.php

@@ -0,0 +1,29 @@
+<?php
+
+namespace App\Http\Resources;
+
+use Illuminate\Http\Resources\Json\JsonResource;
+
+/**
+ * @property \App\Models\Device $devices
+ * @property \App\Models\DeviceGroup $groups
+ * @property \App\Models\Location $locations
+ */
+class AlertRule extends JsonResource
+{
+    /**
+     * Transform the resource into an array.
+     *
+     * @param  \Illuminate\Http\Request  $request
+     * @return array|\Illuminate\Contracts\Support\Arrayable|\JsonSerializable
+     */
+    public function toArray($request)
+    {
+        $rule = parent::toArray($request);
+        $rule['devices'] = $this->devices->pluck('device_id')->all();
+        $rule['groups'] = $this->groups->pluck('id')->all();
+        $rule['locations'] = $this->locations->pluck('id')->all();
+
+        return $rule;
+    }
+}