{"session":{"id":"2ec3442392574069a28f","domain":"english","email":null,"language":"en","phase":"discovery","title":null,"problem_statement":null,"profile":{"level":"","context":"démo publique","known":""},"payload":{},"created_at":"2026-10-19T05:24:46.452082","updated_at":"2026-10-19T05:24:46.452106","solution_revealed":false,"is_demo":true},"messages":[{"id":401,"role":"user","kind":"text","content":"Demo: I need to write a polite but firm email to a client who hasn't paid an invoice that is 30 days overdue. CEFR level B1. I drafted something but it sounds too aggressive.","created_at":"2026-10-19T05:24:46.459691","meta":{}}],"media":[],"feedback":[]}