tinkle 0c0056f4e8 Feature: Add position details to Trade History ...

Add missing fields to TradeOutcome:
- Quantity: Position size
- Leverage: Leverage multiplier
- PositionValue: Total position value (quantity × openPrice)
- MarginUsed: Margin required (positionValue / leverage)

This provides complete trade information for analysis and display.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

2025-10-30 18:09:16 +08:00

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decision_logger.go

Feature: Add position details to Trade History

2025-10-30 18:09:16 +08:00