Switched planets from async ellipsoid geometry to orthographic-disc BILLBOARDS
(reliable, unlit, no worker geometry), with billboard-image refresh once each
disc canvas is drawn. Fixed the near-plane depth collapse (near 0.1 + far 6e9
killed the starfield). All logic verified — real live positions, disc textures
drawn, bodies project to screen, mode/UI/travel-to work — but I could NOT get
the solarsystem datasource to visually render in the headless preview despite
exhaustive debugging. NOT deployed; needs a real-browser render check / a fresh
debugging pass. Live site is unaffected (never deployed this).
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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