Remove list_files tool

nanocode.py

@@ -226,6 +226,19 @@ class RLMCodingConfig(PrecompiledConfig):
 class RLMCodingProgram(PrecompiledProgram):
     config: RLMCodingConfig
 
+    def ensure_config(self, config):
+        """Override to fix Python 3.14 compatibility issue with __annotations__ access."""
+        ConfigClass = self.__class__.__annotations__.get("config", PrecompiledConfig)
+        if config is None:
+            config = ConfigClass()
+        elif isinstance(config, dict):
+            config = ConfigClass(**config)
+        elif type(config) is not ConfigClass:
+            raise ValueError(
+                f"config must be an instance of {self.__class__.__name__}.config, got {type(config)}"
+            )
+        return config
+
     def __init__(self, config: RLMCodingConfig, **kwargs):
         super().__init__(config, **kwargs)