fix(combat): apply save negates to targeted spell damage effects

src/pf1e_simulator/combat.py

@@ -2077,7 +2077,12 @@ class CombatEngine:
         raw = effect.formula.roll(self._rng)
         if maximize:
             raw = effect.formula.max_value()
-        dmg = max(0, raw // 2) if saved and effect.half_on_save else raw
+        if saved and effect.half_on_save:
+            dmg = max(0, raw // 2)
+        elif saved:
+            dmg = 0
+        else:
+            dmg = raw
         if empower:
             dmg = int(dmg * 1.5)
         target.hp -= dmg

src/pf1e_simulator/spells.py

@@ -35,7 +35,8 @@ SaveType = Literal["fort", "ref", "will", "none"]
 class DamageEffect:
     formula: DiceExpr
     types: tuple[str, ...]
-    half_on_save: bool = True
+    # False = save negates (targeted); True = half damage on save (ray/line/cone/AoE)
+    half_on_save: bool = False
 
 
 @dataclass(frozen=True)
@@ -216,7 +217,7 @@ def _parse_effect(data: Json) -> SpellEffect:
         return DamageEffect(
             formula=parse_dice(_as_str(effect["formula"])),
             types=tuple(_as_str(t) for t in _as_list(effect["types"])),
-            half_on_save=bool(effect.get("half_on_save", True)),
+            half_on_save=bool(effect.get("half_on_save", False)),
         )
     if effect_type == "condition":
         return ConditionEffect(