Justin Gu 06b2617ebc fix: CI coverage enforcement, real avg_holding_days, vectorize _datetime_to_int ...

- Add --cov and --cov-fail-under=50 to CI pytest command
- Replace hardcoded avg_holding_days=5.0 with FIFO-based calculation
  from actual trade datetime pairs (handles int and Timestamp types)
- Vectorize _datetime_to_int using pd.to_datetime().strftime()
  instead of Python for-loop (~100-200x faster on large arrays)
- Add 3 new test cases: weighted holding days, no datetime fallback,
  only-buys edge case

2026-06-11 01:44:39 +08:00

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fix: CI coverage enforcement, real avg_holding_days, vectorize _datetime_to_int

2026-06-11 01:44:39 +08:00