refs #703: use gzip for Smilegate backoffice

deploy/caddy/smilegate/Caddyfile

@@ -0,0 +1,58 @@
+{
+	servers {
+		protocols h1 h2
+	}
+}
+
+http://193.122.114.213 {
+	encode zstd gzip
+	header {
+		X-Content-Type-Options nosniff
+		Referrer-Policy strict-origin-when-cross-origin
+	}
+	log {
+		output file /var/log/caddy/smilegate-console-access.log
+		format console
+	}
+	reverse_proxy 127.0.0.1:8622 {
+		transport http {
+			versions 1.1
+		}
+	}
+}
+
+smilegate.cloud-handson.com {
+	encode zstd gzip
+	header {
+		X-Content-Type-Options nosniff
+		Referrer-Policy strict-origin-when-cross-origin
+	}
+	log {
+		output file /var/log/caddy/smilegate-console-access.log
+		format console
+	}
+	reverse_proxy 127.0.0.1:8622 {
+		transport http {
+			versions 1.1
+		}
+	}
+}
+
+smilegate-backoffice.cloud-handson.com {
+	# Edge clients have left completed zstd-compressed HTML navigations pending.
+	# Use broadly supported gzip on the management UI; the console keeps zstd.
+	encode gzip
+	header {
+		X-Content-Type-Options nosniff
+		Referrer-Policy strict-origin-when-cross-origin
+	}
+	log {
+		output file /var/log/caddy/smilegate-backoffice-access.log
+		format console
+	}
+	reverse_proxy 127.0.0.1:8082 {
+		transport http {
+			versions 1.1
+		}
+	}
+}