Resolve the current main conflict, treat reply timeouts as inactivity windows, and confirm liveness through Harness instead of sticky interaction ownership.
A long-running Harness task was falsely reported as MODEL_REPLY_TIMEOUT
after the fixed 10-minute deadline even though the backend was still
working. Replace the hard wall-clock deadline with an activity-based
stall window: the wait renews whenever the turn produces new events, the
control ownership is active, or (mid-turn with no new events) Harness
still reports the session as running. Only a genuine stall with no
progress for the whole timeoutMs window fails fast.
This is the shared harness-client layer, exercised end-to-end by the
Feishu channel (which already exposes HARNESS_REPLY_TIMEOUT_MS); other
channels inherit the same fix.
Adds two regression tests: a long-running turn with periodic activity
completes instead of timing out, and a genuinely stalled turn still
fails with harness-reply-timeout.
Resolve qq-bridge.mjs by keeping the inbound-file support (hasFiles,
files passthrough) and dropping the upstream stream session, which
this branch replaces with the discrete turn-feed notices.
Show what the agent is actually doing during a turn, the way Claude
Code does: interim explanation text, every Tool call, and the error
detail when a tool fails, each as its own pushed message before the
final markdown answer.
- HarnessReplyTracker.consume now returns every frame of a polling
batch in order (same-batch text frames collapse to the latest)
instead of dropping all but the last event, which silently ate
tool-call frames that shared a batch with their result
- tool frames carry callId; status frames carry the correlated
toolName and a flattened error text parsed from the tool/result
error payload (message, or name: code)
- the QQ bridge holds interim step text until the next tool call
(or the end of the turn) pushes it, emits 'Tool call <name>' per
call, emits 'Tool call <name>\nError: <reason>' for failures, and
skips re-sending interim text that already equals the final answer
Other channels keep their existing behaviour: the status frame still
reads '正在整理结果…' and they ignore the new optional fields.
