47f92b48bf
The realistic sales simulation must not offer a "Finish practice / จบการฝึก" button, because the chat is meant to auto-close on buy/walk/try (as originally decided inffb7cdd). The finish button and its chatFinish handler were reintroduced in3c22d88and are now removed; the composer holds only Send and the debrief renders automatically once the session finishes. Regression test asserts no finish/summary button is rendered.