fix: correct StepResult import path

data_analysis_env/client.py

@@ -1,6 +1,6 @@
 from typing import Any, Dict, List, Optional, Tuple
 
-from openenv.core import EnvClient, StepResult
+from openenv.core.env_client import EnvClient, StepResult
 
 from .models import (
     DataAnalysisAction,

inference.py

@@ -4,6 +4,7 @@ import sys
 from typing import List, Optional
 
 from openai import OpenAI
+from openenv.core.env_client import StepResult
 
 sys.path.insert(0, os.path.dirname(os.path.abspath(__file__)))