The update to jest-mock-extended v4.0.0 was incompatible with the project's current Jest 29 installation. jest-mock-extended v4 requires Jest 30, which would require a larger migration effort.
Changes:
- Downgrade jest-mock-extended from 4.0.0 to 3.0.7
- Revert test changes to use v3 API (toBeCalled instead of toHaveBeenCalled)
- Revert snapshot files to original state
This fixes the Docker build failure in CI where npm ci was failing.
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Co-Authored-By: Claude <noreply@anthropic.com>