df83cee10c
- Fix FlagUpdatePayload field names to match backend schema (is_seen/is_flagged) - Replace dangerouslySetInnerHTML with sandboxed iframe (srcDoc, sandbox="") - Add bulk mark read/unread with checkbox selection in MailList - Add floating bulk action bar in Mail.tsx - Add imap_sync_mail_flags() to push Seen/Flagged flags to IMAP server - Call IMAP flag sync in PATCH /flags endpoint - Add i18n keys for bulk actions (de/en)