Tighten should_knock_early() so AI no longer knocks with projected
scores of 12-14. New range: max_acceptable 5-9 (was 8-18), with
scaled knock_chance by score quality and an exception when all
opponents show 25+ visible points.
Fix 5 pre-existing test failures:
- test_event_replay: use game.current_player() instead of hardcoding
"p1", since dealer logic makes p2 go first
- game.py: include current_player_idx in round_started event so state
replay knows the correct starting player
- test_house_rules: rename test_rule_config → run_rule_config so
pytest doesn't collect it as a test fixture
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>