Draw ancestor/descendant indicators behind card, make them clickable
(navigates to person), use sharper box corners (rx=1). Fix age
calculation to use full birth/death dates instead of just years,
correctly accounting for whether the birthday has passed.
Show small child-box indicators at bottom-right of person cards when
descendants exist beyond the current view. Fix both ancestor and
descendant indicators to draw connecting lines behind boxes.
Interactive SVG family tree visualization using ELK (Sugiyama) for
layout and D3 for rendering. Shows ancestors, descendants, and siblings
in a single diagram with orthogonal bus-line connectors.
Features:
- Bidirectional tree traversal (ancestors + descendants + siblings)
- Generation-aligned layout with post-processing Y-snap
- Person cards with photos, names, dates, and hover bio cards
- "More ancestors" indicator for persons with hidden parents
- Pan/zoom navigation
- Docker dev environment
