Yijia-Xiao 96111aa368 fix(dataflows): withhold the live profile from historical fundamentals ...

- both fundamentals vendors accepted curr_date and ignored it, serving a
  present-day company profile into a run dated in the past: yfinance via
  Ticker.info, Alpha Vantage via OVERVIEW
- that profile has no historical vintage, not even name/sector/industry (which
  move when a company renames or is reclassified), so a past curr_date now
  withholds it and says why; live runs are unchanged
- the rule lives once in date_window next to the existing look-ahead helpers,
  so switching data_vendors between the two cannot reintroduce the leak, and
  the guard runs before the request rather than discarding a paid-for response
- point-in-time fundamentals for a past date already come from the balance
  sheet, income statement and cash flow tools, which filter on curr_date #1300

2026-09-07 20:54:19 +00:00

5.0 KiB

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