Update copilot-instructions.md with latest system features
Major additions:
- Exit strategy details: 3-tier scaling (TP1 75%, TP2 80% of remaining, 5% runner with trailing stop)
- Signal quality system: 5 metrics scored 0-100, filters trades at 60+ threshold
- Runner implementation: Trailing stop activation after TP2, peakPrice tracking
- Database fields: signalQualityScore, MAE/MFE, configSnapshot for state persistence
- New API endpoints: /check-risk, /analytics/last-trade, /restart
- Updated workflows with quality score validation and runner management
- Common pitfalls: Quality score duplication, runner configuration confusion
- Development roadmap: Link to POSITION_SCALING_ROADMAP.md with 6 phases
Critical corrections:
- Position Manager singleton: getPositionManager() → getInitializedPositionManager()
- Updated monitoring loop details with external closure detection and state saving
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