feat: agregar identidad visual e iconos del proyecto (SVG, ICO, PNG) y desplegar en producción

web/templates/base.html

@@ -4,6 +4,11 @@
     <meta charset="UTF-8">
     <meta name="viewport" content="width=device-width, initial-scale=1.0">
     <title>{{block "title" .}}drop.sigmac.app — Pasa archivos y texto al instante{{end}}</title>
+    <!-- Favicon & Touch Icons -->
+    <link rel="icon" type="image/svg+xml" href="/favicon.svg">
+    <link rel="alternate icon" type="image/x-icon" href="/favicon.ico">
+    <link rel="apple-touch-icon" href="/static/icon-192.png">
+
     <!-- Tailwind CSS CDN -->
     <script src="https://cdn.tailwindcss.com"></script>
     <script>
@@ -44,9 +49,7 @@
     <header class="border-b border-slate-800 bg-slate-900/80 backdrop-blur sticky top-0 z-50">
         <div class="max-w-6xl mx-auto px-4 h-16 flex items-center justify-between">
             <a href="/" class="flex items-center gap-2.5 font-bold text-lg tracking-tight hover:opacity-90 transition">
-                <span class="w-9 h-9 rounded-xl bg-gradient-to-tr from-brand-600 to-emerald-400 flex items-center justify-center text-slate-950 font-black shadow-lg shadow-brand-500/20">
-                    <i class="fa-solid fa-cloud-arrow-up text-base"></i>
-                </span>
+                <img src="/favicon.svg" alt="Logo" class="w-9 h-9 rounded-xl shadow-lg shadow-brand-500/20 object-contain">
                 <span class="text-white">drop<span class="text-brand-500">.sigmac.app</span></span>
             </a>