fix(rules): ray of enfeeblement applies a rolled Strength penalty (Fort half) instead of fatigued

SRD ray-of-enfeeblement.md: 1d6 + 1 per 2 caster levels (max 1d6+5) Strength
penalty, Fortitude half, 1 round/level. Adds a PenaltyEffect type (rolled
formula, scaling, half on save, level-scaled duration) applied as negative
untyped modifiers on the rolls Strength feeds (attack, damage), since the
engine has no ability-score track. Formerly modeled as a fatigued condition
with Fort negates.

tests/test_spell_registry_batch3.py

@@ -24,6 +24,7 @@ from pf1e_simulator.spells import (
     ConditionEffect,
     DamageEffect,
     HealEffect,
+    PenaltyEffect,
     SpellEffect,
     SpellSpec,
     SummonEffect,
@@ -79,6 +80,7 @@ _EFFECT_TYPES = (
     ConditionEffect,
     HealEffect,
     BuffEffect,
+    PenaltyEffect,
     AreaEffect,
     SummonEffect,
 )