feat: add survey

app/Models/SurveyAnswer.php

@@ -0,0 +1,26 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\BelongsTo;
+
+class SurveyAnswer extends Model
+{
+    protected $fillable = ['user_id', 'survey_question_id', 'survey_option_id'];
+
+    public function user(): BelongsTo
+    {
+        return $this->belongsTo(User::class);
+    }
+
+    public function question(): BelongsTo
+    {
+        return $this->belongsTo(SurveyQuestion::class, 'survey_question_id');
+    }
+
+    public function option(): BelongsTo
+    {
+        return $this->belongsTo(SurveyOption::class, 'survey_option_id');
+    }
+}