add assessment feature

app/Models/AssessmentQuestionModel.php

@@ -0,0 +1,14 @@
+<?php
+
+namespace App\Models;
+
+use CodeIgniter\Model;
+
+class AssessmentQuestionModel extends Model
+{
+    protected $table = 'assessment_questions';
+    protected $primaryKey = 'id';
+    protected $returnType = 'array';
+    protected $allowedFields = ['pool_id', 'type', 'text', 'options', 'correct_answer', 'points', 'order_index'];
+    protected $useTimestamps = true;
+}