Update explainers/explainer_types.py

explainers/explainer_types.py

@@ -1,5 +1,5 @@
 from dataclasses import dataclass, field
-from typing import List, Optional, Dict, Any
+from typing import Any, Dict, List, Optional
 
 
 @dataclass
@@ -18,6 +18,12 @@ class ExplainerScaffold:
     variables_to_define: List[str] = field(default_factory=list)
     equations_to_form: List[str] = field(default_factory=list)
 
+    # solver-aware bridge metadata
+    solution_path_type: Optional[str] = None
+    key_operations: List[str] = field(default_factory=list)
+    hint_ladder: List[str] = field(default_factory=list)
+    reveal_threshold: int = 3
+
     answer_hidden: bool = True