Implement a graph assistant with multiple agents for IBU insurance processing

[AthenaDecisionSystems]

The first agent classify the user's query

The branches are INFORMATION, and COMPLAINT

For the Complaint, tune the prompt to include RAG, and decision service tool

Have a Tool Action node so the graph implements a ReAct.

The information Agent need Tavily and the vector store retriever as tools

[jbcodeforce]

Done with today commit