mindesbunister
26ddd177b3
docs: Add Bug #91 to COMMON_PITFALLS.md and copilot-instructions.md
Bug #91: Math.floor truncation leaves fractional position remnants
- Root cause: new BN(Math.floor(sizeToClose * 1e9)) truncates position sizes
- Solution: SDK's closePosition() uses exact BN arithmetic (baseAssetAmount.abs())
- Added to Quick Reference Table in COMMON_PITFALLS.md
- Added full documentation entry (~70 lines)
- Updated Top 10 Critical Pitfalls in copilot-instructions.md
- Replaced #75 (Wrong Year) with #91 (more impactful to trading operations)