- Remove dead scoring code (_score_candidate, _action_for, etc.) and
align action decisions directly with score_opportunity_signal metrics.
- Reduce action surface from trigger/setup/chase/skip to entry/watch/avoid.
- Add confidence field (0..100) mapped from edge_score.
- Update evaluate/optimize ground-truth mapping and tests.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>