Feature/sse (#3125)

* Base changes for ServerSide Events (instead of socket.io)

* lint fixes

* adding of interface and separate methods for streaming events

* lint

* first draft, handles both internal and external prediction end points.

* lint fixes

* additional internal end point for streaming and associated changes

* return streamresponse as true to build agent flow

* 1) JSON formatting for internal events
2) other fixes

* 1) convert internal event to metadata to maintain consistency with external response

* fix action and metadata streaming

* fix for error when agent flow is aborted

* prevent subflows from streaming and other code cleanup

* prevent streaming from enclosed tools

* add fix for preventing chaintool streaming

* update lock file

* add open when hidden to sse

* Streaming errors

* Streaming errors

* add fix for showing error message

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Co-authored-by: Henry <hzj94@hotmail.com>

packages/ui/src/api/prediction.js

@@ -1,7 +1,9 @@
 import client from './client'
 
 const sendMessageAndGetPrediction = (id, input) => client.post(`/internal-prediction/${id}`, input)
+const sendMessageAndStreamPrediction = (id, input) => client.post(`/internal-prediction/stream/${id}`, input)
 
 export default {
-    sendMessageAndGetPrediction
+    sendMessageAndGetPrediction,
+    sendMessageAndStreamPrediction
 }