add turbo, changes to make it work across docker, docker-compose, npx

packages/server/package.json

@@ -20,7 +20,6 @@
         "commands": "./dist/commands"
     },
     "scripts": {
-        "preinstall": "npx only-allow pnpm",
         "build": "tsc",
         "start": "run-script-os",
         "clean": "rimraf dist",
@@ -44,7 +43,7 @@
         "email": "henryheng@flowiseai.com"
     },
     "engines": {
-        "node": ">=18.15.0"
+        "node": ">=18.15.0 <19.0.0 || ^20"
     },
     "license": "SEE LICENSE IN LICENSE.md",
     "dependencies": {