refactor(slay-the-spire-like): update card effect and intent schemas

Refactor the data schemas for desert card effects and intents to use
dedicated type aliases for triggers, targets, and effect lists. This
improves type safety and consistency across the sample data.

src/samples/slay-the-spire-like/system/combat/effects.ts

@@ -9,7 +9,6 @@ import {
 import {
   CardData,
   CardEffectTarget,
-  CardTargetType,
   EffectData,
   EffectTarget,
 } from "@/samples/slay-the-spire-like/system/types";