feat: worry box feature implemented

app/Models/Worry.php

@@ -0,0 +1,20 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Model;
+
+class Worry extends Model
+{
+    protected $fillable = ['user_id', 'title', 'is_solved'];
+
+    public function user()
+    {
+        return $this->belongsTo(User::class);
+    }
+
+    public function notes()
+    {
+        return $this->morphMany(Note::class, 'noteable');
+    }
+}