fix(deploy): default server port to 80 (reverse proxy standard)

- Change config template in deploy.sh from port 8080 to port 80
- A reverse proxy must listen on port 80 for public HTTP traffic
- CAP_NET_BIND_SERVICE allows non-root binding to low ports

deploy.sh

@@ -101,7 +101,7 @@ if [ ! -f "$CONFIG_PATH" ]; then
 # Generated: $(date)
 server:
   host: "0.0.0.0"
-  port: 8080
+  port: 80
 
 admin:
   secret_token: "${ADMIN_TOKEN}"