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v0.8.2 — Fast latest-filing lookup (fiscal-year-end heuristic)

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@ajtgjmdjp ajtgjmdjp released this 19 Jul 16:50
· 6 commits to main since this release
v0.8.2
cb2baed

Performance release for the period-omitted "latest filing" path — the first path new users touch. Design reviewed externally (gpt-5.3-codex).

Changed

  • Fiscal-year-end heuristic: the EDINET code list's 決算日 is now parsed into Company.fiscal_year_end. With period omitted, annual-report lookups probe the company's statutory filing-deadline month (決算月+3, then +2) before scanning — cold lookups take ~1 month window (~60s at the default rate limit) regardless of the company's fiscal calendar, and warm lookups are instant. Verified end-to-end against the live API (cold 66s → warm 0.2s).
  • Correctness-first probe design: previous-year windows are deliberately never probed before the reverse-chronological scan — accepting them could shadow a newer off-window filing (early/late/exceptional filers).
  • Tiered filings-cache TTL (24h / 7d / 60d by age) instead of permanent caching, since list rows are not strictly immutable (withdrawals, metadata edits).
  • Code-list lookup failures degrade silently to the plain scan.

See CHANGELOG.md for details.

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