🏦 refactor: Centralize Caching & Redis Key Prefixing (#8457)

* 🔧 Overhauled caching feature:
- Refactored caching logic.
- Fixed redis prefix, namespace, tls, ttl, and cluster.
- Added REDIS_KEY_PREFIX_VAR

* # refactor: Rename redisCache to standardCache

* # Add Redis pinging mechanism to maintain connection.

* # docs: Add warning about Keyv Redis client prefix support

api/server/middleware/uaParser.js

@@ -1,4 +1,5 @@
 const uap = require('ua-parser-js');
+const { ViolationTypes } = require('librechat-data-provider');
 const { handleError } = require('@librechat/api');
 const { logViolation } = require('../../cache');
 
@@ -21,7 +22,7 @@ async function uaParser(req, res, next) {
   const ua = uap(req.headers['user-agent']);
 
   if (!ua.browser.name) {
-    const type = 'non_browser';
+    const type = ViolationTypes.NON_BROWSER;
     await logViolation(req, res, type, { type }, score);
     return handleError(res, { message: 'Illegal request' });
   }