Fixes#5622
- Strip whitespace/newlines from OPENAI_API_KEY when read from env vars
or passed directly (in _normalize_openai_fields and _get_client_params)
- Strip whitespace from env var values in llm_utils.py fallback path
- Add specific AuthenticationError handling in all OpenAI completion
methods (sync/async, completions/responses) with troubleshooting
guidance for users
- Let AuthenticationError propagate through call()/acall() without
being swallowed by the generic Exception handler
- Add comprehensive tests covering whitespace stripping and auth error
handling
Co-Authored-By: João <joao@crewai.com>
47b0081333