- TranscriptionBlockData now carries mentionedPersons (matches backend
schema added in PR-A).
- useBlockAutoSave.saveFn signature widens to (blockId, text, mentions);
pendingMentions is tracked alongside pendingTexts and is preserved on
failure so a retry resends the in-flight payload (B12).
- TranscriptionBlock.svelte renders <PersonMentionEditor>, exposing the
textarea node back through a captureTextarea callback so the existing
quote-selection feature still works.
- saveBlock in routes/documents/[id]/+page.svelte forwards mentions on
PUT.
- flushOnUnload sends mentions in the keepalive payload too.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
