Addresses @felix blocker: both functions were duplicated verbatim in
StammbaumCard.svelte and StammbaumSidePanel.svelte. Now exported from
$lib/relationshipLabels.ts with perspectivePersonId as an explicit param.
8 unit tests added (red→green).
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
- New presentational RelationshipBadge component (labelFromA → arrow →
labelFromB) wired into DocumentMetadataDrawer's Personen column,
rendered after the receivers block when both endpoints are family
members.
- DocumentTopBar gains an optional inferredRelationship prop and
passes it through.
- documents/[id]/+page.server.ts loads the badge: only when sender is
a family member, exactly one receiver, and that receiver is also a
family member; 404 (no path) → null.
- relationshipLabels.ts maps the backend label keys (parent/child/...)
to localised strings, so the server load returns badge-ready strings.
Refs #358.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
