v5.31.5

Fixed

• xbrl.facts.to_dataframe() mislabeled Q2/Q3 as Q3/Q4 for 52/53-week fiscal-year filers (JNJ, PFE, AAPL, COST) — the XBRL instance parser's _quarter_for_date classified the fiscal quarter from the raw calendar month of the period end. 52/53-week issuers pin quarter ends to a weekday near the calendar quarter boundary, so the period_end can drift into the first days of the following month — JNJ Q2 2023 ended 2023-07-02, Q3 2023 ended 2023-10-01 — bucketing those facts into the next quarter. The EntityFacts layer already handled this via calculate_fiscal_year_for_label, but the XBRL parser has an independent fiscal classification path feeding xbrl.facts.to_dataframe() and query().by_fiscal_period(...), silently misclassifying quarterly data for any RAG / analytics pipeline reading raw facts. End dates in the first 7 days of a month are now treated as belonging to the previous month for quarter classification; the 7-day window covers max drift for Sunday-nearest (≤3 days), Saturday-nearest (≤1 day), and last-Sat/Sun (no drift) patterns with safety margin. (#816, reporter @kmatosli)

Full Changelog: v5.31.4...v5.31.5