fix: Update nginx config to use dynamic DNS resolution

- Replace upstream blocks with resolver directive
- Use variables for backend addresses to avoid startup errors
- Simplify configuration with single server block
- Add health check endpoint

server/api/node_modules/nodemon/lib/monitor/index.js

@@ -0,0 +1,4 @@
+module.exports = {
+  run: require('./run'),
+  watch: require('./watch').watch,
+};