kami
4f6bfa85f7
Surfaces the observability metrics (observability-spec §3-tier-2) in the Go TUI: a session-summary pane showing duration, token throughput per provider, tool time, approval latency per tier, failure counts, and the session wall-time accounting split. Press `S` (or palette → "session stats"). Mirrors the artifacts/config fetch pattern exactly — a WS request/response, not a new transport. Server-side reuses the already-tested MetricsInspectionService (one MetricsReport definition, two wires: REST `correx stats` + WS). Server: - ClientMessage.GetSessionStats + ServerMessage.SessionStats(@SerialName session.stats), reusing MetricsReport as the nested payload. - StreamQueries.sessionStats replays via MetricsInspectionService (pure read, replay-neutral); routed in GlobalStreamHandler. - ServerMessageSerializationTest golden pins the session.stats wire format. TUI (Go/Bubble Tea): - protocol: TypeSessionStats + StatsDto/nested structs + GetSessionStats encoder + golden decode test (cross-language contract). - OverlayStats pane (statsModal), `S` key + palette entry + footer hint, loading/cache-by-session state, bounded breakdown rows. - demo `stats` preview case for serverless visual verification.