- Added environment variables for fake API keys in `conftest.py` to facilitate testing.
- Refactored mock functions in tests to utilize global mocks for LLM calls, improving consistency and reducing redundancy.
- Updated various test cases to rely on the new mocking structure, ensuring accurate simulation of LLM responses and fact extraction.
- Removed direct calls to model clients in tests, replacing them with mocks to streamline test execution and maintain isolation.
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