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/combined-stream/package.json

@@ -0,0 +1,25 @@
+{
+  "author": "Felix Geisendörfer <felix@debuggable.com> (http://debuggable.com/)",
+  "name": "combined-stream",
+  "description": "A stream that emits multiple other streams one after another.",
+  "version": "1.0.8",
+  "homepage": "https://github.com/felixge/node-combined-stream",
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/felixge/node-combined-stream.git"
+  },
+  "main": "./lib/combined_stream",
+  "scripts": {
+    "test": "node test/run.js"
+  },
+  "engines": {
+    "node": ">= 0.8"
+  },
+  "dependencies": {
+    "delayed-stream": "~1.0.0"
+  },
+  "devDependencies": {
+    "far": "~0.0.7"
+  },
+  "license": "MIT"
+}