{"session":{"id":"9063a885586f4174a286","domain":"excel","email":null,"language":"fr","phase":"discovery","title":null,"problem_statement":null,"profile":{"level":"","context":"démo publique","known":""},"payload":{},"created_at":"2026-07-21T10:53:37.667388","updated_at":"2026-07-21T10:53:37.667399","solution_revealed":false,"is_demo":true},"messages":[{"id":230,"role":"user","kind":"text","content":"Démo : j'ai une liste de ventes par commercial sur l'année. Je veux calculer le total par commercial et repérer qui dépasse la moyenne. J'ai essayé SOMME.SI mais je n'y arrive pas.","created_at":"2026-07-21T10:53:37.673453","meta":{}}],"media":[],"feedback":[]}