Add a getro adapter (POST JSON search API) and wire up the Coinbase
Ventures portfolio talent network (collection 1625), CH + eng-title
filtered. Note this covers portfolio companies (Ashby, Notion, VALR,
World, ...), not Coinbase itself, which doesn't list on its Ventures
board — Coinbase-the-employer stays in MANUAL_CHECK.
Also clean up stale comments: drop Sonova (MedTech, off-thesis, dead
scrape) from MANUAL_CHECK, remove the dangling BIS comment now that
BIS is automated via rss, and refresh the adapter-coverage notes and
module docstring to the current 21-automated / 3-manual state.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>