[WIP] Fix logging issues and TypeError in AutoControlBot

[Copilot]

Thanks for asking me to work on this. I will get started on it and keep this PR's description up to date as I form a plan and make progress.

Original prompt

The user reported issues with AutoControlBot after PR #10.
Logs indicate two problems:

1. services.gsheets:sheet_changed logs warnings with %d and %s placeholders which are not replaced, indicating incorrect usage of loguru (which expects {}).
2. Repeated "Unexpected error" in sheet_changed suggests a persistent exception. A likely cause is TypeError when comparing offset-aware now with potentially offset-naive creds.expiry in _get_creds.

The fix should:

1. Update src/services/gsheets.py to use {} formatting for logger calls.
2. In _get_creds, ensure expiry and now are comparable (handle timezone awareness) to prevent TypeError.
3. Improve logging for failed REST API calls (status != 200) by including the response body (await response.text()).

Ref:

326|                 logger.warning(
327|                     "⚠️ Не удалось получить modifiedTime через REST API: %d", 
328|                     response.status
329|                 )

and

335|         logger.warning("⚠️ Неожиданная ошибка при проверке modifiedTime: %s", exc)

And the expiry check:

90|         or now >= _creds_cache["expiry"]

This pull request was created from Copilot chat.

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