Update empty-state, swap-button, and new-doc-link tests to match redesigned
components. Add new tests for: single-person hint bar visibility, recent-persons
chips from localStorage, corrupt localStorage graceful handling, Row 2
aria-disabled state, and strip letter count in single-person and bilateral modes.
Fix CorrespondenzEmptyState to use {id, name} storage format matching
persistRecentPerson in +page.svelte.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
CorrespondenzPersonBar (Row 1), CorrespondenzFilterControls (Row 2 with
live count + sort), CorrespondentSuggestionsDropdown (fetch-on-focus,
keyboard nav), SinglePersonHintBar, CorrespondenzEmptyState (recent
persons from localStorage). New i18n shim in messages-extra.ts until
root-owned paraglide files can be regenerated.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
