Solitaire for Ghosts updates

Cards now use two colours: cyan for spades and clubs, coral for hearts and diamonds.
Faded cards wait in a separate crypt. Lay new cards to rest to free captives, or spend stability to free one early.
Cards fly into the crypt, with a glowing iron gate and a readable rank-and-suit badge.
Clearer stability loss effects and warnings at 25%, 10% and 5%.
Softer ghost arrival and countdown sounds, plus new crypt and game-over effects.
Clearer game-over scenes explain whether the ghosts broke the veil or dawn ended the night.