fix: update contact info, logo, remove address/map

- Phone: +52 1 664 302 8119
- Email: liliana.paez@lpgestoria.com
- WhatsApp: 5216643028119
- Added logo image
- Removed address and Google Maps
- Configured real DB, SMTP, and WhatsApp credentials

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

includes/header.php

@@ -23,7 +23,7 @@
 <header class="navbar" id="navbar">
     <div class="container navbar__inner">
         <a href="index.php" class="navbar__brand">
-            <i class="fa-solid fa-scale-balanced"></i>
+            <img src="assets/img/logo.jpg" alt="Gestoría LP" class="navbar__logo">
             <span>Gestoría <strong>LP</strong></span>
         </a>