Regista abertura de propostas e actas imutaveis por versao

app/Models/ProposalOpening.php

@@ -0,0 +1,21 @@
+<?php
+
+namespace App\Models;
+
+use App\Models\Concerns\AppendOnlyInventoryRecord;
+use App\Models\Concerns\BelongsToTenant;
+use Illuminate\Database\Eloquent\Model;
+
+class ProposalOpening extends Model
+{
+    use AppendOnlyInventoryRecord, BelongsToTenant;
+
+    public $timestamps = false;
+
+    protected $guarded = ['id'];
+
+    protected function casts(): array
+    {
+        return ['participants' => 'array', 'annexes' => 'array', 'snapshot' => 'array'];
+    }
+}