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/append-field/package.json

@@ -0,0 +1,19 @@
+{
+  "name": "append-field",
+  "version": "1.0.0",
+  "license": "MIT",
+  "author": "Linus Unnebäck <linus@folkdatorn.se>",
+  "main": "index.js",
+  "devDependencies": {
+    "mocha": "^2.2.4",
+    "standard": "^6.0.5",
+    "testdata-w3c-json-form": "^0.2.0"
+  },
+  "scripts": {
+    "test": "standard && mocha"
+  },
+  "repository": {
+    "type": "git",
+    "url": "http://github.com/LinusU/node-append-field.git"
+  }
+}