Mount CliChatSurface in ChatView for cli-backed chat sessions (sessions carrying
cliExecutorAdapterId): the message-pane + composer region is delegated to the
surface (transcript/raw-terminal toggle for hybrid/native adapters, terminal-only
for the generic adapter), while regular sessions keep the standard composer. The
existing message list and composer JSX are captured once as render thunks and
passed through, so there is no parallel message/composer UI.
Add a narrow telemetry seam: TelemetryHub gains an optional onEvent tap (also
settable post-construction via setEventListener) invoked with each sanitized
event after routing — best-effort, a throwing listener never breaks ingest. This
is the seam the CliChatSessionRunner uses to build the durable transcript from
the same sanitized events the hook route already feeds the hub, without the hub
becoming a general subscriber bus.
Fix the stale @fusion/engine vi.mocks across dashboard tests: object-literal
mocks that fully replace the module now also return listCliAdapterDescriptors
(added by U15's cli-agent-settings route, evaluated at module load). Mocks that
spread importOriginal/importActual already pick it up.
Tests: new ChatView.cli-mount.test.tsx (cli session → CliChatSurface, regular
session → normal composer, generic → terminal-only); telemetry-hub onEvent tap
coverage. chat-attachment-routes, chat-cli-sessions, cli-agent-hooks-route,
ChatView.cli-toggle all green.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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