v0.2.1 - Ownership Sync Bootstrap

Highlights

• adds idx ownership discover to locate the latest supported IDX above-1 shareholder register PDF
• adds idx ownership import --url <pdf-url> for direct remote import
• adds idx ownership sync for maintained snapshot-based bootstrap and refresh
• adds local archive ZIP/TXT ingest as a fallback backstop path
• expands smoke coverage and fixture-backed ownership tests

Notes

• stocks remains MSN-first, with Yahoo retained for history fallback
• this release is being backfilled on GitHub so release objects match the existing tag history