fix: infra/__init__.py — only export what exists, remove BrainClient from active imports"

alpha_factory/infra/__init__.py

@@ -1,12 +1,14 @@
 """Infrastructure modules."""
 from .llm_client import LLMClient
 from .factor_store import FactorStore
-from .wq_client import BrainClient
-from .model_manager import ModelManager, ModelProvider, ModelInfo, interactive_model_select
-from .rag import PaperRAG
+from .model_manager import ModelManager, interactive_model_select
 
-__all__ = [
-    "LLMClient", "FactorStore", "BrainClient",
-    "ModelManager", "ModelProvider", "ModelInfo", "interactive_model_select",
-    "PaperRAG",
-]
+# BrainClient exists but is NOT connected to the pipeline
+# from .wq_client import BrainClient
+
+# Stub for imports that reference it
+class BrainClient:
+    """STUB — BRAIN API client is not connected. All submissions are manual."""
+    pass
+
+__all__ = ["LLMClient", "FactorStore", "ModelManager", "interactive_model_select", "BrainClient"]