📦 chore: Bump Express.js to v5 (#10671)

* chore: update express to version 5.1.0 in package.json

* chore: update express-rate-limit to version 8.2.1 in package.json and package-lock.json

* fix: Enhance server startup error handling in experimental and index files

* Added error handling for server startup in both experimental.js and index.js to log errors and exit the process if the server fails to start.
* Updated comments in openidStrategy.js to clarify the purpose of the CustomOpenIDStrategy class and its relation to Express version changes.

* chore: Implement rate limiting for all POST routes excluding /speech, required for express v5

* Added middleware to apply IP and user rate limiters to all POST requests, ensuring that the /speech route remains unaffected.
* Enhanced code clarity with comments explaining the new rate limiting logic.

* chore: Enable writable req.query for mongoSanitize compatibility in Express 5

* chore: Ensure req.body exists in multiple middleware and route files for Express 5 compatibility

packages/api/package.json

@@ -91,7 +91,7 @@
     "connect-redis": "^8.1.0",
     "diff": "^7.0.0",
     "eventsource": "^3.0.2",
-    "express": "^4.21.2",
+    "express": "^5.1.0",
     "express-session": "^1.18.2",
     "firebase": "^11.0.2",
     "form-data": "^4.0.4",