Initial commit: Horux Backend API

- API REST para gestion de facturas electronicas mexicanas (CFDI)
- Laravel 9 con autenticacion OAuth 2.0 (Passport)
- Integracion con Syntage, Clerk y Facturama
- 30 modelos Eloquent, 39 controladores
- Documentacion completa en /docs

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

app/Http/Controllers/Controller.php

@@ -0,0 +1,13 @@
+<?php
+
+namespace App\Http\Controllers;
+
+use Illuminate\Foundation\Auth\Access\AuthorizesRequests;
+use Illuminate\Foundation\Bus\DispatchesJobs;
+use Illuminate\Foundation\Validation\ValidatesRequests;
+use Illuminate\Routing\Controller as BaseController;
+
+class Controller extends BaseController
+{
+    use AuthorizesRequests, DispatchesJobs, ValidatesRequests;
+}