PRUNplanner doesn't model travel, so nothing in the project could answer
"how far is planet X" until now. Builds a graph from /systemstars (698
systems, real jump connections + 3D coordinates) and runs Dijkstra
weighted by straight-line ly (what FTL fuel/time actually scale with),
reporting jump count alongside.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>