Documents the TP1 detection bug where on-chain limit orders fill faster
than Position Manager monitoring loop can detect. When both TP1 (75%)
and runner (25%) close before next monitoring cycle, PM doesn't know
TP1 filled first, marks entire closure as 'SL' instead of 'TP1'.
Fix uses profit percentage thresholds instead of state flags:
- >1.2%: TP2 range
- 0.3-1.2%: TP1 range
- <0.3%: SL range
Simpler and more reliable than tracking order fill state.
96f5cfae77