Add first message date to domain echoarea list

app/Models/Domain.php

@@ -94,7 +94,7 @@ class Domain extends Model
 			->whenRaw("datetime >= '?'",$dt->subMonth()->format('Y-m-d'))->thenRaw("'month'")
 			->elseRaw("'all'");
 
-		return Echoarea::select(['echoareas.id','name','description','active',DB::raw('count(echomails.id) AS count'),DB::raw('max(datetime) as last_message')])
+		return Echoarea::select(['echoareas.id','name','description','active',DB::raw('count(echomails.id) AS count'),DB::raw('min(datetime) as first_message'),DB::raw('max(datetime) as last_message')])
 			->selectRaw($case->toRaw().' AS stats')
 			->join('echomails',['echomails.echoarea_id'=>'echoareas.id'],NULL,NULL,'left outer')
 			->where('domain_id',$this->id)

app/Models/Echoarea.php

@@ -46,7 +46,8 @@ class Echoarea extends Model
 	private const CACHE_TIME = 3600;
 
 	protected $casts = [
-		'last_message' => 'datetime:Y-m-d H:i:s'
+		'first_message' => 'datetime:Y-m-d H:i:s',
+		'last_message' => 'datetime:Y-m-d H:i:s',
 	];
 
 	/* RELATIONS */