add user migration

backend/database/migrations/2026_05_17_000001_create_users_table.php

@@ -0,0 +1,26 @@
+<?php
+
+namespace App\Database\Migrations;
+
+use App\Database\Migration;
+use Illuminate\Database\Capsule\Manager as Capsule;
+
+class CreateUsersTable extends Migration
+{
+    public function up(): void
+    {
+        Capsule::schema()->create('users', function ($table) {
+            $table->increments('id');
+            $table->string('email', 255)->unique();
+            $table->string('password_hash', 255);
+            $table->timestamps();
+        });
+    }
+
+    public function down(): void
+    {
+        Capsule::schema()->dropIfExists('users');
+    }
+}
+
+return CreateUsersTable::class;