feat: add initial setup for KrothiumAPI with .htaccess and index.php

- Created .htaccess for URL rewriting to route all requests to index.php
- Added index.php to bootstrap the KrothiumAPI with environment variables and configuration settings
- Configured application mode, paths, router settings, session management, error logging, and logging driver

public/.htaccess

@@ -0,0 +1,10 @@
+<IfModule mod_rewrite.c>
+    RewriteEngine On
+
+    # Se for arquivo ou pasta real, deixa passar
+    RewriteCond %{REQUEST_FILENAME} !-f
+    RewriteCond %{REQUEST_FILENAME} !-d
+    
+    # Tudo vai pro front controller
+    RewriteRule ^ index.php [L,QSA]
+</IfModule>

public/index.php

@@ -0,0 +1,51 @@
+<?php
+// Importa autoload do Composer
+require_once realpath(path: __DIR__ . '/../vendor/autoload.php');
+
+use Dotenv\Dotenv;
+use KrothiumAPI\KrothiumAPI;
+
+// Carrega variáveis de ambiente
+$dotenv = Dotenv::createImmutable(paths: __DIR__ . '/..');
+$dotenv->load();
+
+// ======================================
+// Inicializa KrothiumAPI com configs
+// ======================================
+KrothiumAPI::init(config: [
+    'app' => [
+        'mode' => $_ENV['APP_MODE'] ?? 'DEV', // DEV | PROD
+    ],
+    'paths' => [
+        'root' => __DIR__ . '/..',
+        'src' => __DIR__ . '/../app',
+        'module' => __DIR__ . '/../app/Module',
+        'storage' => __DIR__ . '/../storage',
+        'component' => __DIR__ . '/../app/Common/Component',
+    ],
+    'router' => [
+        'base_path' => $_ENV['ROUTER_BASE_PATH'] ?? '',
+        'allowed_origins' => ['*'],
+    ],
+    'system' => [
+        'enable_session' => true,
+        'default_timezone' => 'America/Fortaleza',
+    ],
+    'errors' => [
+        'error_log' => __DIR__ . '/../storage/Logs/php-error.log',
+    ],
+    'logger' => [
+        'driver' => 'FILE',
+        'logDir' => __DIR__ . '/../storage/Logs'
+    ],
+    'constants' => [
+        // Constantes extras específicas da aplicação, se precisar.
+    ]
+]);
+
+// Importa rotas da API v0
+
+// ============================
+// Dispara o roteador
+// ============================
+KrothiumAPI::routerDispatch();