The WeCom outbound path had two silent exits: a completion whose delivery row
named another platform, and one with no delivery row at all. From outside they
were one quiet return, so an answer that reached the transcript but never the
chat could not be told apart from ordinary traffic on the shared bus.
Both now name themselves in the closed outcome set: not_wecom_turn (DEBUG),
no_delivery_row (WARN, the one skip worth an alert — in practice a task
enqueued before an upgrade), and route_unattributable (DEBUG) for a turn with
no route and no batch owner to attribute it to. The metrics Help and logs draw
the drop/skip line by obligation rather than by whether a frame was written,
and tests pin that wording.
The origin gate is one keyed read (GetTaskChannelOrigin) in place of
GetAgentTask plus TaskInputIsChannelIngested. It also reports whether the
batch owner is known, so an owner-less row is delivered when a route exists
and stays quiet when none does — which keeps the auto-retry of a legacy
channel turn answering its room.
Co-authored-by: J <[email protected]>
