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

resources/views/auth/login.blade.php

@@ -0,0 +1,62 @@
+@extends('layouts.app')
+
+@section('title', __('Login'))
+
+@section('content')
+<div style="max-width: 420px; margin: 0 auto;">
+    <div class="card">
+        <h2 style="margin-top:0; color:#fff;">{{ __('Login') }}</h2>
+
+        <form method="POST" action="{{ route('login') }}">
+            @csrf
+
+            <div class="field">
+                <label for="email">{{ __('Email') }}</label>
+                <input id="email" type="email" name="email" value="{{ old('email') }}" required autofocus autocomplete="username">
+                @error('email')<div class="error">{{ $message }}</div>@enderror
+            </div>
+
+            <div class="field">
+                <label for="password">{{ __('Password') }}</label>
+                <div class="pw-wrap">
+                    <input id="password" type="password" name="password" required autocomplete="current-password">
+                    <button type="button" class="eye-toggle" data-eye="password" aria-label="Mostrar senha">👁️</button>
+                </div>
+                @error('password')<div class="error">{{ $message }}</div>@enderror
+            </div>
+
+            <div class="field" style="display:flex; align-items:center; gap:.5rem;">
+                <input type="checkbox" id="remember" name="remember" value="1" @checked(old('remember'))>
+                <label for="remember" style="margin:0;">{{ __('Remember Me') }}</label>
+            </div>
+
+            <div class="field">
+                <label for="captcha">{{ $captcha['question'] }}</label>
+                <input id="captcha" type="number" name="captcha" required inputmode="numeric">
+                @error('captcha')<div class="error">{{ $message }}</div>@enderror
+            </div>
+
+            <button type="submit" class="btn btn-primary" style="width:100%; padding:.8rem;">{{ __('Login') }}</button>
+        </form>
+
+        <p style="margin-top:1rem; font-size:.9rem; color:var(--muted);">
+            {{ __('welcome.no_account') }} <a href="{{ route('register') }}">{{ __('Register') }}</a>
+        </p>
+    </div>
+</div>
+@endsection
+
+@push('scripts')
+<script>
+    // Eye icon toggles password visibility on the login form.
+    document.querySelectorAll('.eye-toggle').forEach(function (btn) {
+        btn.addEventListener('click', function () {
+            var input = document.getElementById(btn.dataset.eye);
+            if (!input) return;
+            var showing = input.type === 'text';
+            input.type = showing ? 'password' : 'text';
+            btn.textContent = showing ? '👁️' : '🙈';
+        });
+    });
+</script>
+@endpush