fix(chatwoot): improve jid normalization and type safety in chatwoot integration

Refactor  to preserve LID identifiers and update  parameter type for better type safety as per code review feedback.

src/api/integrations/chatbot/chatwoot/services/chatwoot.service.ts

@@ -2527,7 +2527,7 @@ export class ChatwootService {
     }
   }
 
-  public getNumberFromRemoteJid(remoteJid: string) {
+  public normalizeJidIdentifier(remoteJid: string) {
     if (!remoteJid) {
       return '';
     }