Save JWT token to ~/.config/golfcards/session.json after login so
subsequent launches skip the login screen when the session is still
valid. A new splash screen shows the token check status (SUCCESS /
NONE FOUND / EXPIRED) before routing to lobby or login.
Also: move OUT indicator to player box bottom border, remove checkmark,
center scoreboard overlay, use alternating shade blocks (▓▒▓/▒▓▒) for
card backs.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>