Total canvas width is the wrong metric: centring every ancestor makes a 24-root
forest wider overall (an accepted trade-off, pan/zoom handles navigation). The
actual fix is per-bloodline compactness. Assert every contiguous bloodline's
span stays far under the old full-canvas smear (4860px) — today the widest,
Albert de Gruyter's, is ~960px, down from being smeared across the whole canvas.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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