[Blocker] fix: Improve response handling and error logging

## GitHub Update **Repository:** [MKWcorp/CINTAI](https://github.com/MKWcorp/CINTAI) **Author:** MKWcorp **Date:** 11/9/2025, 8:00:43 AM **Commit:** [`d5f9573`](https://github.com/MKWcorp/CINTAI/commit/d5f9573ac506caca8bb080102b7d0a36aa00a3f2) ### Commit Message fix: Improve response handling and error logging - Add response status check - Transform backend response format: {response: text} -> {message: text} - Add detailed logging for debugging - Better error handling for backend errors - Return proper format for frontend consumption This should fix 'No response' error by properly handling backend response format --- _This story was imported from historical commits._