Python SDK v9.4.0

Added

• client.sessions group for reading sessions (the traces of one conversation, grouped by session id): list (cursor-paginated, with filters + free-text query), analytics (per-metric totals/medians and a 12-hour bucket series over whole sessions), get (session detail with its GenAI conversation and latest_trace_id), list_traces (cursor-paginated traces of the session), list_signals (signals recorded across the session's traces), and get_signal (one session-scoped signal by slug).