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

---------

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

pnpm-lock.yaml

@@ -617,6 +617,9 @@ importers:
             '@emotion/styled':
                 specifier: ^11.10.6
                 version: 11.11.0(@emotion/react@11.11.4(@types/react@18.2.65)(react@18.2.0))(@types/react@18.2.65)(react@18.2.0)
+            '@microsoft/fetch-event-source':
+                specifier: ^2.0.1
+                version: 2.0.1
             '@mui/base':
                 specifier: 5.0.0-beta.40
                 version: 5.0.0-beta.40(@types/react@18.2.65)(react-dom@18.2.0(react@18.2.0))(react@18.2.0)
@@ -3750,6 +3753,9 @@ packages:
     '@mendable/firecrawl-js@0.0.28':
         resolution: { integrity: sha512-Xa+ZbBQkoR/KHM1ZpvJBdLWSCdRoRGyllDNoVvhKxGv9qXZk9h/lBxbqp3Kc1Kg2L2JJnJCkmeaTUCAn8y33GA== }
 
+    '@microsoft/fetch-event-source@2.0.1':
+        resolution: { integrity: sha512-W6CLUJ2eBMw3Rec70qrsEW0jOm/3twwJv21mrmj2yORiaVmVYGS4sSS5yUwvQc1ZlDLYGPnClVWmUUMagKNsfA== }
+
     '@mistralai/mistralai@0.1.3':
         resolution: { integrity: sha512-WUHxC2xdeqX9PTXJEqdiNY54vT2ir72WSJrZTTBKRnkfhX6zIfCYA24faRlWjUB5WTpn+wfdGsTMl3ArijlXFA== }
 
@@ -20098,6 +20104,8 @@ snapshots:
         transitivePeerDependencies:
             - debug
 
+    '@microsoft/fetch-event-source@2.0.1': {}
+
     '@mistralai/mistralai@0.1.3(encoding@0.1.13)':
         dependencies:
             node-fetch: 2.7.0(encoding@0.1.13)