A transport failure from a host's start/status/resume thunk, carrying the
status to surface. Hosts that reach their runs through a Durable Object stub
get this from doSummary: the DO already mapped the runtime's typed errors to
404/409/400, so that status must survive rather than collapse into a 500.
A transport failure from a host's start/status/resume thunk, carrying the status to surface. Hosts that reach their runs through a Durable Object stub get this from
doSummary: the DO already mapped the runtime's typed errors to 404/409/400, so that status must survive rather than collapse into a 500.