feat: add shared utilities module `core/utils/utils.py`#52

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copilot/add-shared-utils-to-core

Commits on Mar 24, 2026

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feat: add shared utilities to core/utils/utils.py with language_iso, fetch_data, and _get_user

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robertatakenaka
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refactor: address code review - narrow exception catch to ValueError, document None return

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robertatakenaka
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