Split the 610-line person detail page into four focused co-located components:
- PersonCard: view/edit card with inline form (owns editMode)
- PersonMergePanel: merge target typeahead + two-step confirm (state reset via {#key})
- CoCorrespondentsList: frequency-ranked correspondent chips linking to conversations
- PersonDocumentList: reusable sorted/paginated document list (used for sent + received)
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
