Fixes datetime comparison error when last_seen_at from database is offset-naive (no timezone info) while 'now' is offset-aware (UTC). This resolves the TypeError: can't subtract offset-naive and offset-aware datetimes issue in integration tests.
Fixes datetime comparison error when last_seen_at from database is offset-naive (no timezone info) while 'now' is offset-aware (UTC). This resolves the TypeError: can't subtract offset-naive and offset-aware datetimes issue in integration tests.