When Inter integration fails ("Unit not configured for Pix", missing
certs, etc.), the tool was returning success=true with the error
message as formatted_message. The LLM interpreted that as success and
hallucinated "Pix generated" to the customer — and never triggered the
generate_reservation_link fallback.
Switch the rescue path from tool_feedback_response (success=true) to
error_response (success=false) so the Daniela scenario correctly falls
back to the reservation-link tool as documented in her prompt.
6c9d12559d