update codigo referido funcionamiento login, register y dashboard

database/migrations/2025_10_15_095948_add_referral_fields_to_users_table.php

@@ -0,0 +1,28 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    public function up()
+    {
+        Schema::table('users', function (Blueprint $table) {
+            $table->string('referral_code')->unique()->nullable();
+            $table->string('parent_id')->nullable();
+            $table->string('rank_id')->nullable();
+        });
+    }
+
+    public function down()
+    {
+        Schema::table('users', function (Blueprint $table) {
+            $table->dropColumn([
+                'referral_code',
+                'parent_id',
+                'rank_id',
+            ]);
+        });
+    }
+};