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/mkdirp/package.json

@@ -0,0 +1,33 @@
+{
+  "name": "mkdirp",
+  "description": "Recursively mkdir, like `mkdir -p`",
+  "version": "0.5.6",
+  "publishConfig": {
+    "tag": "legacy"
+  },
+  "author": "James Halliday <mail@substack.net> (http://substack.net)",
+  "main": "index.js",
+  "keywords": [
+    "mkdir",
+    "directory"
+  ],
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/substack/node-mkdirp.git"
+  },
+  "scripts": {
+    "test": "tap test/*.js"
+  },
+  "dependencies": {
+    "minimist": "^1.2.6"
+  },
+  "devDependencies": {
+    "tap": "^16.0.1"
+  },
+  "bin": "bin/cmd.js",
+  "license": "MIT",
+  "files": [
+    "bin",
+    "index.js"
+  ]
+}