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/pstree.remy/README.md

@@ -0,0 +1,26 @@
+# pstree.remy
+
+> Cross platform ps-tree (including unix flavours without ps)
+
+## Installation
+
+```shel
+npm install pstree.remy
+```
+
+## Usage
+
+```js
+const psTree = psTree require('pstree.remy');
+
+psTree(PID, (err, pids) => {
+  if (err) {
+    console.error(err);
+  }
+  console.log(pids)
+});
+
+console.log(psTree.hasPS
+  ? "This platform has the ps shell command"
+  : "This platform does not have the ps shell command");
+```