Claude Code: Fix import paths for runtime environment

- Fix app.py: change openclaw.openclaw.agents to agents (with import openclaw first)
- Fix error_handlers.py: add import openclaw before importing agents
- Ensures sys.path is properly set up before brain_minimal import

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

app.py

@@ -160,7 +160,8 @@ async def a2a_jsonrpc(request: Request):
         # Handle message/send method
         if method == "message/send":
             # Lazy load brain for processing
-            from openclaw.openclaw.agents import brain_minimal
+            import openclaw  # Sets up sys.path
+            from agents import brain_minimal
 
             message = params.get("message", {})
             message_text = ""

error_handlers.py

@@ -146,7 +146,8 @@ def handle_brain_response(message: str) -> str:
         AttributeError: If required brain methods are missing.
     """
     try:
-        # Import directly since .openclaw is in sys.path after openclaw import
+        # Import openclaw first to set up sys.path, then import agents
+        import openclaw
         from agents.brain_minimal import BrainMinimal
 
         brain = BrainMinimal(agent_name="cain", legacy_mode=True)