perf(get_emails): batch fetch all emails in single IMAP lock#2
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Previously get_emails called getEmail() N times, each opening and releasing the mailbox lock individually (N round trips). getEmailsBatch() opens the mailbox once, issues a single FETCH for all UIDs, and collects results in a Map before releasing the lock — dramatically faster for large batches. Max IDs increased from 20 → 50 to take advantage of the efficiency gain.
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The upstream
get_emailsusedPromise.allSettled(ids.map(async (id) => ...)), which opened a separate IMAP mailbox lock per email — effectively N sequential round-trips.New
getEmailsBatch()inimap.service.ts:getMailboxLock()client.fetch(range, ...)callAlso raised the per-call limit from 20 → 50 to match the new efficiency.
Depends on #1 (feat/search-controls → harcek/email-mcp).
Tested against Gmail and other IMAP providers. No regressions on existing tools.