Remove terminate_on_close parameter from sse_client call in SSETransport.
This parameter is only valid for streamable HTTP transport, not for SSE transport.
Fixes#3938
Changes:
- Remove terminate_on_close=True from sse_client() call in SSETransport.connect()
- Add comprehensive unit tests for SSETransport that mock sse_client and verify correct parameters
- Add error-path tests to ensure Agent._get_native_mcp_tools raises proper RuntimeError instead of UnboundLocalError when connection fails
Co-Authored-By: João <joao@crewai.com>
54c29e843e