Reuses the existing retry, breaker, limiter and telemetry loop; the transport capability is checked once before the statistics boundary. Legacy entrances keep their error text. Tests cover the document path through the real transport so parser exceptions, deadlines and probe bookkeeping are proven end to end.
Unrecognizable bytes are rejected before any request. The result package is downloaded as a stream with a cumulative size cap, and error statuses are classified before the size check. Parsing runs in a worker thread so cancellation and call deadlines stay effective. parse_layout shares the first protocol stage without behavior change.
iomgaa