Support Anthropic conversation logging and retries

apps/device-host-agent/host_agent/web/app.py

@@ -444,9 +444,22 @@ def create_console_app(
         ]
         if not messages:
             raise HTTPException(status_code=400, detail="messages are invalid")
-        result = await asyncio.to_thread(
-            conversation_agent.chat_for_device, device_id.strip(), messages
-        )
+        if conversation_log is not None:
+            await asyncio.to_thread(
+                conversation_log.append,
+                {"type": "user_request", "device_id": device_id.strip(), "messages": messages},
+            )
+        try:
+            result = await asyncio.to_thread(
+                conversation_agent.chat_for_device, device_id.strip(), messages
+            )
+        except Exception as exc:
+            if conversation_log is not None:
+                await asyncio.to_thread(
+                    conversation_log.append,
+                    {"type": "agent_error", "device_id": device_id.strip(), "error": str(exc)},
+                )
+            raise HTTPException(status_code=502, detail=str(exc)) from exc
         return JSONResponse(
             {"content": result.content, "tool_calls": result.tool_calls}
         )