SESSION SCOPE: SESSION_01 (ACTIVE) SESSION SCOPE: SESSION_02 (ISOLATED) ROUTE INDEX CONTEXT FETCH EVAL LOCALSTORAGE SESSION_ID UPLOAD ADAPTER SESSION DIR ON DISK FAISS INDEX PER SESSION CHAT HISTORY PER SESSION QUESTION CONTEXTUALIZER RETRIEVER ANSWER GENERATOR EVALUATION HARNESS SESSION DIR ON DISK [S2] FAISS INDEX PER SESSION [S2] CHAT HISTORY PER SESSION [S2] QUESTION CONTEXTUALIZER[S2] RETRIEVER [S2] ANSWER GENERATOR [S2]