- Fix unused excinfo variable in test_empty_inputs_dictionary
- Extract nested validate_type function to module-level _validate_input_type
- Add constants for supported types (SUPPORTED_PRIMITIVE_TYPES, SUPPORTED_CONTAINER_TYPES)
- Improve type hints for interpolate_only function
- Remove unused imports (List, Union)
All tests pass and lint checks are clean.
Co-Authored-By: João <joao@crewai.com>