Add a separate migration for the user name on the users table

database/migrations/0001_01_01_000000_create_users_table.php

@@ -17,7 +17,6 @@ public function up(): void
             $table->id();
             $table->foreignId('role_id')->default(1)->constrained();
             $table->string('name');
-            $table->string('username')->unique();
             $table->string('email')->unique();
             $table->string('azure_id')->nullable()->unique();
             $table->string('photo')->nullable();

database/migrations/2026_03_19_000000_add_username_to_users_table.php

@@ -0,0 +1,31 @@
+<?php
+
+declare(strict_types=1);
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    /**
+     * Add the username column to the users table.
+     * Nullable to allow existing users to exist without a username.
+     */
+    public function up(): void
+    {
+        Schema::table('users', function (Blueprint $table): void {
+            $table->string('username')->unique()->nullable()->after('name');
+        });
+    }
+
+    /**
+     * Remove the username column from the users table.
+     */
+    public function down(): void
+    {
+        Schema::table('users', function (Blueprint $table): void {
+            $table->dropColumn('username');
+        });
+    }
+};