* fix(email): keep FETCH attributes Gmail sends after the header literal
imaplib returns a UID FETCH response as an interleaved list of
(meta, literal) tuples plus bare bytes elements. Which attributes land
where is server-specific: Dovecot sends FLAGS before the RFC822.HEADER
literal (inside the tuple meta), Gmail sends them after it, as a bare
` FLAGS (\Seen))` element. The email list grouping loop and the search
loop only inspected tuples, so on Gmail every message lost its FLAGS and
the whole mailbox rendered as unread/unflagged, with mark-read appearing
to have no effect.
Extract the grouping into _group_uid_fetch_records(), fold bare bytes
parts into the current message meta there, and reuse it in both the
batched list fetch and the per-UID search fetch. Covered by unit tests
with captured Gmail-shaped and Dovecot-shaped responses.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
* test(email): use raw byte literals for IMAP backslash escapes
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Co-authored-by: Claude Fable 5 <noreply@anthropic.com>