feat: add City10 platform with Laravel 13, AI agents, 3D viewer, and LGPD compliance

Initial commit of the complete City10 virtual city simulation platform.

Backend (Laravel 13):
- REST API with Sanctum tokens and session-based web authentication
- Role-based access control (admin/user) with middleware protection
- AI agent CRUD with OpenRouter.ai integration restricted to free models
- Store management with 3D coordinates and AI shopkeeper assignment
- Versioned legal documents (Terms, Privacy, Cookies) with LGPD audit trail
- Math CAPTCHA on public forms and multi-language support (pt_BR, en, es)

Frontend:
- Responsive Blade templates with Tailwind CSS v4
- Three.js 3D city viewer with SSE chat streaming to AI agents
- Admin panel for store and user administration

Infrastructure:
- MariaDB/MySQL database with comprehensive migrations
- Database seeders for demo content and test accounts
- PHPUnit test suite and Laravel Pint code styling
- Vite build configuration with hot reload

database/seeders/UserSeeder.php

@@ -0,0 +1,46 @@
+<?php
+
+namespace Database\Seeders;
+
+use App\Models\User;
+use Illuminate\Database\Seeder;
+
+/**
+ * Seeds the initial platform accounts.
+ *
+ * Creates the administrator and a regular test user with the credentials
+ * provided for the development environment. Passwords are stored using
+ * Laravel's bcrypt hashing through the model's "hashed" cast.
+ */
+class UserSeeder extends Seeder
+{
+    /**
+     * Seed the users table.
+     */
+    public function run(): void
+    {
+        User::updateOrCreate(
+            ['email' => 'marcocosta@gmx.com'],
+            [
+                'name' => 'Marco Costa',
+                'password' => 'Mega886ax',
+                'role' => User::ROLE_ADMIN,
+                'locale' => 'pt_BR',
+                'is_active' => true,
+                'email_verified_at' => now(),
+            ],
+        );
+
+        User::updateOrCreate(
+            ['email' => 'user@sistema.net'],
+            [
+                'name' => 'Usuário de Testes',
+                'password' => 'User123',
+                'role' => User::ROLE_USER,
+                'locale' => 'pt_BR',
+                'is_active' => true,
+                'email_verified_at' => now(),
+            ],
+        );
+    }
+}