review: fix critical/medium bugs in 4 plugins (round 2)
group_horse_racing:
- settle_race: rewrite with 7 bug fixes (race condition, draw double-credit, empty participants, etc.)
- models.py: reorder fields for correct defaults, add indexes
- message_service: add logger import
danding_points:
- api.py: add finally blocks to 3 methods (add_points, get_history, get_leaderboard)
- database.py: add finally block to get_user_balance
chatai:
- __init__.py: deprecated API→asyncio.to_thread, deduplicate logging, taskkill filter for safety
- screenshot.py: XSS protection with bleach on HTML content
- requirements.txt: add bleach dependency
danding_qqpush:
- api.py L13: fix self-referencing _renderer NameError crash
- api.py: lazy singleton pattern via _get_renderer() instead of per-request ImageRenderer
- __init__.py: mask Token in log output (security)
All 34 tests pass.
Mr.Xia
c62ac37611