fix(spells): backfill casting times for all imported spells

tests/test_spells.py

@@ -212,6 +212,7 @@ class TestSpellCastTime:
         cases = {
             "1 round": "one_round",
             "1 minute": "long",
+            "3 rounds": "long",
             "full-round": "full_round",
             "swift action": "swift",
         }
@@ -227,6 +228,30 @@ class TestSpellCastTime:
         with pytest.raises(ValueError, match="unknown cast time"):
             self._load(tmp_path, "2 hours")
 
+    def test_imported_spells_declare_their_cast_time(self) -> None:
+        """Given: the imported spell data
+        When: the registry is loaded
+        Then: exactly the KB-verified spells carry a non-standard cast_time."""
+        expected = {
+            "Enhance Water": "one_round",
+            "Silence": "one_round",
+            "Sleep": "one_round",
+            "Summon Instrument": "one_round",
+            "Summon Monster I": "one_round",
+            "Summon Monster II": "one_round",
+            "Grasp": "immediate",
+            "Saving Finale": "immediate",
+            "Make Whole": "long",
+            "Masterwork Transformation": "long",
+            "Mending": "long",
+            "Restoration, Lesser": "long",
+        }
+        registry = load_spell_registry(_SPELLS_DIR)
+        non_standard = {n for n, s in registry.items() if s.cast_time != "standard"}
+        assert non_standard == set(expected)
+        for name, code in expected.items():
+            assert registry[name].cast_time == code, name
+
 
 class TestSpellRangeFt:
     """Given: a spell with a range category