Initial project scaffold with frontend dashboard and Caddy config

Frontend-first status board with mock data for 16 vendors.
Caddy configured on port 8443 with internal TLS, coexisting
with an existing Caddy instance (admin on 2020, no HTTP redirects).

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

config/Caddyfile

@@ -0,0 +1,17 @@
+{
+	admin localhost:2020
+	auto_https disable_redirects
+}
+
+https://status.nhsd.net:8443, https://localhost:8443 {
+	tls internal
+
+	# Static frontend
+	root * ../frontend
+	file_server
+
+	# Proxy API requests to Node backend
+	handle /api/* {
+		reverse_proxy localhost:3000
+	}
+}