Unlocks the vault, parses the CSV, encrypts each item, writes items/<id>.enc and manifest.enc, then a single `git add … && git commit` covers all of them. Stderr progress every 50 items + final summary. Exit non-zero only when zero items imported.
Unlocks the vault, parses the CSV, encrypts each item, writes items/<id>.enc and manifest.enc, then a single `git add … && git commit` covers all of them. Stderr progress every 50 items + final summary. Exit non-zero only when zero items imported.