Initial Volcán Antigua Roasters brand setup

Scaffolds a zero-dependency static site for Netlify: index.html placeholder,
Netlify config with security headers and aggressive asset caching, robots/
sitemap, brand README, and an empty assets/ folder for the logo PNGs.

volcan-antigua-roasters/netlify.toml

@@ -0,0 +1,25 @@
+[build]
+  publish = "."
+
+[[headers]]
+  for = "/*"
+  [headers.values]
+    X-Frame-Options = "DENY"
+    X-Content-Type-Options = "nosniff"
+    Referrer-Policy = "strict-origin-when-cross-origin"
+    Permissions-Policy = "geolocation=(), microphone=(), camera=()"
+
+[[headers]]
+  for = "/assets/*"
+  [headers.values]
+    Cache-Control = "public, max-age=31536000, immutable"
+
+[[headers]]
+  for = "/*.html"
+  [headers.values]
+    Cache-Control = "public, max-age=3600, must-revalidate"
+
+[[headers]]
+  for = "/"
+  [headers.values]
+    Cache-Control = "public, max-age=3600, must-revalidate"