Half-sun on left edge, planets left-to-right with radius-based sizing
(Earth = 24px reference, unclamped — gas giants fill the view). Globe
textures loaded from wiki at runtime. Double-click on reach map opens
system view. M closes atlas from any screen, ESC navigates back.
Fixes Godot 4.6 type inference parse errors in main.gd (var zoom/speed).
Uses physical_keycode throughout for layout-independent key handling.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>