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feat(ownership): import IDX above-1% XLSX holder register

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Since June 2026 IDX publishes the monthly "Pemegang Saham di Atas 1%"
list as an XLSX workbook on the Data Kepemilikan Saham page instead of
a PDF announcement. Add a parser for it and accept `.xlsx` in
`ownership import --file`.

- src/ownership/xlsx.rs: zip + quick-xml reader (shared strings incl.
  rich text, sheet cells), exact 12-column header match so the daily
  above-5% and investor-type/classification workbooks are rejected,
  Excel serial dates, numeric shares, percent -> bps with float-noise
  rounding. Builds KseiHoldingDraft directly and reuses the entity
  normalizers, so investor types stay uppercase like the PDF path.
- Fixtures: trimmed excerpts of the real 2026-08-31 above-1% and
  2026-09-23 above-5% workbooks.
- Unit + CLI tests: import, ticker, releases, above-5% rejection.
- Docs: ARCHITECTURE parser pipeline, AGENTS ownership inputs.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017a5Cv5Z1NzdYKgKnTiAF4E
This commit is contained in:
hermes 2026-09-24 20:48:07 +00:00
commit 2c85acb829
9 changed files with 539 additions and 10 deletions
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2
AGENTS.md
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@ -63,7 +63,7 @@ Preferred bootstrap/update path:
Ownership input paths:
- primary remote source: discoverable IDX `above1` holder-register PDF
- maintained snapshot path: `ownership sync`
- local fallback path: PDF, plus local archive `.zip` / `.txt`
- local file imports: IDX above-1% `.xlsx` (current format since June 2026), legacy `.pdf`, plus local archive `.zip` / `.txt`
Important scope note:
- archive ZIP/TXT ingest is a fallback/backstop path, not the primary product ingest surface