CorrespondentSuggestionsDropdown: empty list still renders the static
heading and 'Alle Korrespondenten' row, populated rows when not loading,
loading hides correspondent rows, initials fallback (lastName-only when
firstName is null), click + keyboard selection, Escape closes.
PersonCard: full matrix of conditional UI — title visibility for PERSON
vs non-PERSON, avatar initials path (firstName+lastName vs lastName-only
fallback), PersonTypeBadge presence for non-PERSON types, alias, life
dates, notes, and the canWrite=true/false branches that gate the edit
link (Nora's authorization-rendering rule).
21 tests covering ~50 branches.
Refs #496.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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