Drops .replace(tzinfo=None) from 8 fixture sites that mirrored the
production-side strip convention. Two of these (test_live_state_poller.py
test_new_player_opens_session_with_backfilled_join, test_models.py
test_user_has_password_changed_at_default) now fail with TypeError when
comparing aware in-memory values against naive DB reads -- that failure
is intentional and describes the contract commit 2 must satisfy:
DB-sourced datetimes return aware UTC.
The remaining 6 sites were already cosmetic (fixture-seed only, no
aware-vs-DB comparison) but are flipped here so future authors write
aware fixtures.
The three deliberately-naive sites in test_timeago.py (lines 67, 73,
113) are LEFT untouched -- they exercise _ensure_utc's normalize-up
path and are feature tests, not workarounds.
See docs/superpowers/specs/2026-05-16-tz-aware-datetime-design.md.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
