fix(stats): non-attack damage now lands in damage_taken - bleed ticks, recurring spell damage (Acid Arrow) and cure-spells-damage-undead (SRD Cure Light Wounds negative-energy hit, attributed to the caster's damage_dealt) were invisible to attrition while attacks were counted; transcripts and RNG untouched

tests/test_cure_undead.py

@@ -78,3 +78,27 @@ class TestCureDamagesUndead:
         engine._cast_spell(c, t, "Cure Light Wounds")
         assert t.hp == 18
         assert any("+13 HP" in line for line in engine._transcript)
+
+
+class TestCureUndeadAttrition:
+    """Given: a cure spell delivered to an undead
+    When: the negative-energy damage lands
+    Then: it counts as damage in attrition (dealer + taker), while healing a
+    living target records no damage either way."""
+
+    def test_undead_damage_recorded_for_both_sides(self) -> None:
+        engine, c, t = _make_engine(
+            _caster(), _undead(), [1, 8], target_pos=(1, 0), target_side="players"
+        )
+        engine._cast_spell(c, t, "Cure Light Wounds")
+        assert engine._stats["skeleton"].damage_taken == 13
+        assert engine._stats["caster"].damage_dealt == 13
+
+    def test_living_heal_records_no_damage(self) -> None:
+        engine, c, t = _make_engine(
+            _caster(), _make_target(), [1, 8], target_pos=(1, 0), target_side="players"
+        )
+        t.hp = 5
+        engine._cast_spell(c, t, "Cure Light Wounds")
+        assert engine._stats["caster"].damage_dealt == 0
+        assert engine._stats["target"].damage_taken == 0