🧹 chore: Remove Deprecated BingAI Code & Address Mobile Focus (#5565)

* chore: remove all bing code

* chore: remove bing code and auto-focus effects

* chore: add back escapeRegExp helper function for regex special character handling

* chore: remove deprecated fields from settings and conversation schema

* fix: ensure default endpoint is set correctly in conversation setup

* feat: add disableFocus option to newConversation for improved search behavior

api/server/utils/handleText.js

@@ -10,10 +10,16 @@ const {
   defaultAssistantsVersion,
 } = require('librechat-data-provider');
 const { Providers } = require('@librechat/agents');
-const { getCitations, citeText } = require('./citations');
 const partialRight = require('lodash/partialRight');
 const { sendMessage } = require('./streamResponse');
-const citationRegex = /\[\^\d+?\^]/g;
+
+/** Helper function to escape special characters in regex
+ * @param {string} string - The string to escape.
+ * @returns {string} The escaped string.
+ */
+function escapeRegExp(string) {
+  return string.replace(/[.*+?^${}()|[\]\\]/g, '\\$&');
+}
 
 const addSpaceIfNeeded = (text) => (text.length > 0 && !text.endsWith(' ') ? text + ' ' : text);
 
@@ -64,18 +70,9 @@ const createOnProgress = (
   return { onProgress, getPartialText, sendIntermediateMessage };
 };
 
-const handleText = async (response, bing = false) => {
+const handleText = async (response) => {
   let { text } = response;
   response.text = text;
-
-  if (bing) {
-    const links = getCitations(response);
-    if (response.text.match(citationRegex)?.length > 0) {
-      text = citeText(response);
-    }
-    text += links?.length > 0 ? `\n- ${links}` : '';
-  }
-
   return text;
 };
 
@@ -262,6 +259,7 @@ module.exports = {
   isEnabled,
   handleText,
   formatSteps,
+  escapeRegExp,
   formatAction,
   isUserProvided,
   generateConfig,