🧪 Add test for geoip2 database initialization exception

[marko1olo]

🎯 What: The try-except block silently swallows exceptions. We mock geoip2.database.Reader to throw an exception to test the fallback behavior.
📊 Coverage: Covered edge case where geoip2.database.Reader initialization fails.
✨ Result: Improved test coverage for get_country_by_ip error handling.

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PR created automatically by Jules for task 14442331943136515673 started by @marko1olo

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