Add debugging for case loading KeyError

src/evaluator.py

@@ -106,14 +106,19 @@ class DatasetManager:
         
         cases = []
         for case_data in cases_data.get('cases', []):
-            case = CaseConfig(
-                id=case_data['id'],
-                question=case_data['question'],
-                reference_sql=case_data['reference_sql'],  # This is already a dict with dialects
-                difficulty=case_data.get('difficulty', 'medium'),
-                description=case_data.get('description', '')
-            )
-            cases.append(case)
+            try:
+                case = CaseConfig(
+                    id=case_data['id'],
+                    question=case_data['question'],
+                    reference_sql=case_data['reference_sql'],  # Human-provided ground truth SQL
+                    difficulty=case_data.get('difficulty', 'medium'),
+                    description=case_data.get('description', '')
+                )
+                cases.append(case)
+            except KeyError as e:
+                print(f"Missing key in case data: {e}")
+                print(f"Available keys: {list(case_data.keys())}")
+                raise
         
         return cases