<?php

use Illuminate\Database\Migrations\Migration;
use Illuminate\Database\Schema\Blueprint;
use Illuminate\Support\Facades\Schema;

return new class extends Migration {
    public function up(): void
    {
        // The redundant code for 'chat_threads' index has been removed.
        // If there are other, non-conflicting operations in this file,
        // they should remain here.
    }

    public function down(): void
    {
        // The corresponding dropIndex for 'chat_threads' has also been removed.
    }
};
