Add Proxmox API extensions, WebSocket monitoring, and email notifications

Co-authored-by: Ospab <189454929+Ospab@users.noreply.github.com>

ospabhost/backend/package.json

@@ -20,7 +20,9 @@
     "dotenv": "^16.4.5",
     "express": "^4.21.2",
     "jsonwebtoken": "^9.0.2",
-    "multer": "^2.0.2"
+    "multer": "^2.0.2",
+    "nodemailer": "^6.9.16",
+    "socket.io": "^4.8.1"
   },
   "devDependencies": {
     "@types/bcrypt": "^6.0.0",
@@ -30,6 +32,7 @@
     "@types/jsonwebtoken": "^9.0.10",
     "@types/multer": "^2.0.0",
     "@types/node": "^20.12.12",
+    "@types/nodemailer": "^6.4.17",
     "prisma": "^6.16.2",
     "ts-node-dev": "^2.0.0",
     "typescript": "^5.4.5"