refactor: remove unused index configuration files and associated logic

app/Models/User.php

@@ -1,32 +0,0 @@
-<?php
-
-namespace App\Models;
-
-// use Illuminate\Contracts\Auth\MustVerifyEmail;
-use Database\Factories\UserFactory;
-use Illuminate\Database\Eloquent\Attributes\Fillable;
-use Illuminate\Database\Eloquent\Attributes\Hidden;
-use Illuminate\Database\Eloquent\Factories\HasFactory;
-use Illuminate\Foundation\Auth\User as Authenticatable;
-use Illuminate\Notifications\Notifiable;
-
-#[Fillable(['name', 'email', 'password'])]
-#[Hidden(['password', 'remember_token'])]
-class User extends Authenticatable
-{
-    /** @use HasFactory<UserFactory> */
-    use HasFactory, Notifiable;
-
-    /**
-     * Get the attributes that should be cast.
-     *
-     * @return array<string, string>
-     */
-    protected function casts(): array
-    {
-        return [
-            'email_verified_at' => 'datetime',
-            'password' => 'hashed',
-        ];
-    }
-}