feat: rebrand application from Padel Pro to SmashPoint

Complete rename across all layers: UI branding, package names
(@smashpoint/web, @smashpoint/shared), infrastructure (Docker,
DB config), seed data, documentation, and logo/favicon.

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

apps/web/app/page.tsx

@@ -4,8 +4,19 @@ export default function Home() {
   return (
     <main className="min-h-screen flex flex-col items-center justify-center bg-gradient-to-br from-primary-50 to-primary-100">
       <div className="text-center space-y-8 px-4">
+        {/* Logo */}
+        <div className="flex justify-center">
+          <div className="w-20 h-20 bg-amber-500 rounded-2xl flex items-center justify-center shadow-lg">
+            <svg viewBox="0 0 40 40" className="w-12 h-12 text-white" fill="none">
+              <path d="M22 4L8 22h10l-4 14L28 18H18l4-14z" fill="currentColor" />
+              <circle cx="32" cy="8" r="2" fill="currentColor" opacity="0.8" />
+              <circle cx="35" cy="12" r="1.2" fill="currentColor" opacity="0.6" />
+              <circle cx="30" cy="4" r="1" fill="currentColor" opacity="0.5" />
+            </svg>
+          </div>
+        </div>
         <h1 className="text-5xl md:text-6xl font-bold text-primary-800">
-          Padel Pro
+          SmashPoint
         </h1>
         <p className="text-xl md:text-2xl text-primary-600 max-w-2xl mx-auto">
           Sistema de Gestion para Clubes de Padel