Add real lightning overlay, push notifications, map controls, hourly summary, favorites enhancements, API resilience, UI polish

app/package.json

@@ -8,7 +8,8 @@
     "dev": "node --watch server.js"
   },
   "dependencies": {
-    "express": "^4.18.2"
+    "express": "^4.18.2",
+    "web-push": "^3.6.7"
   },
   "engines": {
     "node": ">=18"