Address PR #935 round-3 review:
- search/verification.py: rewrite _verify_mail_messages to batch by mailbox.
get_message triggers a server-side IMAP body fetch, so per-result verify
issued one IMAP FETCH per hit; now it calls the DB-cached list_messages once
per mailbox (mailbox_id comes from the Qdrant payload via result.metadata)
and intersects — O(unique mailboxes) light calls instead of O(results) IMAP.
- vector/mail_content.py: include Cc/Bcc in the indexed text so recipient
queries match; move MAIL_SCAN_MAX_PER_MAILBOX here (shared by scanner index
window + verifier presence window) with a note that it equals the Mail OCS
per-request max (100), so it's a fixed constant not a config knob.
- client/mail.py: clamp list_messages limit to 1..100 at the client layer.
- tests: add test_mail_content.py (exact-layout contract for build_mail_content);
rewrite the mail verifier tests for the batch-per-mailbox shape.
Left as-is: ValidationError isn't caught in the list-endpoint tools — consistent
with nc_notes_*/nc_deck_* and not a regression.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
