Phase 6 smoke caught:
Error executing tool list_events:
can't compare offset-naive and offset-aware datetimes
Event.start_dt is stored timezone-aware; the wrapper was passing naive
datetimes built from datetime.fromisoformat("YYYY-MM-DD"), so the SQL
comparison crashed. Also: the docstring promises "date_to inclusive at
end-of-day" but the code was using midnight-of-date_to, which would
silently miss same-day events after midnight.
Extracted the range math into _day_range_utc() so create/update_event's
_combine() can stay as-is (it stays naive — the service localizes
create/update inputs against the user's tz, that path didn't crash).
Test updated to match: assert tz-aware UTC datetimes and the +24h
bump for end-of-day-inclusive semantics.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
bvandeusen
05b0bf97d7