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/merge-stream/package.json

@@ -0,0 +1,19 @@
+{
+  "name": "merge-stream",
+  "version": "2.0.0",
+  "description": "Create a stream that emits events from multiple other streams",
+  "files": [
+    "index.js"
+  ],
+  "scripts": {
+    "test": "istanbul cover test.js && istanbul check-cover --statements 100 --branches 100"
+  },
+  "repository": "grncdr/merge-stream",
+  "author": "Stephen Sugden <me@stephensugden.com>",
+  "license": "MIT",
+  "dependencies": {},
+  "devDependencies": {
+    "from2": "^2.0.3",
+    "istanbul": "^0.4.5"
+  }
+}