- Add `_extract_mcp_content_text()` helper in naliia_tools.py to safely
extract text from MCP results, preventing IndexError on empty content
- Replace all direct `result.content[0].text` accesses with safe helper
- Improve customer identification with preservation of existing state
- Add proper JSON parsing with fallback and error handling
- Simplify webhook state management (use agent's checkpointer internally)
- Update system prompt to remove check_mcp_connection tool reference
- Fix tests to use async mocks and correct expected values
