Editor-first Title screen from mock: warm atmosphere (GPUParticles embers,
AnimationPlayer glow, palette-uniform shader bg), logo block, keyboard/mouse
menu (New Game -> shell, Quit works, rest inert), footer. Plus a single
/VERSION source of truth read by both the API (startup + /version) and the
client (synced into project.godot config/version, read via ProjectSettings).
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
