- Added tests/test_trade_reflection.py with 13 test cases:
- FIFO pairing, cross-day pairing, multiple opens merge
- Manual pair, delete pair keeps records
- Daily trades view with reflection status
- Tag deduplication, preset tags
- AI prompt building, AI response parsing (JSON/Markdown/fallback)
- Save AI suggestion as experience
- Fixed pairing engine:
- Imported missing DailyReflection
- Enabled cross-day pairing by including previous unpaired records
- Merged multiple opens into single position per close
- Fixed operator precedence in price/commission calculations
- All tests pass: 123 passed, 2 xfailed
