joungmin bcef128155 feat: add trade_id + full trade record to trade_results ...

Each buy generates a UUID trade_id stored in positions table.
Each sell links via same trade_id in trade_results, enabling
round-trip grouping of buy→sell pairs.

Additional fields saved per trade:
- fee_krw: commission amount (0.05% each side)
- krw_profit: net KRW profit/loss after fees
- buy_price / sell_price: exact prices
- invested_krw: capital deployed
- sell_reason: trailing stop / time stop / etc.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

2026-03-01 05:54:06 +09:00

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