pet.trezy.getPreferences

Everything the caller's account knows about how to present the game: the account-wide default, and every device that has been given its own text style. Takes no DID — it answers for whoever is authenticated and nobody else. ⚠ IT RETURNS THE WHOLE PICTURE RATHER THAN AN ANSWER, deliberately: which of these applies depends on which device is asking and what its browser still remembers, and that reconciliation lives in one tested place on the client (src/lib/preferences.ts) instead of being half here and half there.