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/create-jest/README.md

@@ -0,0 +1,11 @@
+# create-jest
+
+> Getting started with Jest with a single command
+
+```bash
+npm init jest@latest
+# Or for Yarn
+yarn create jest
+# Or for pnpm
+pnpm create jest
+```