Summary

Salvages #10070 (Asunfly — authorship preserved). Fixes a real systemd-level hang: hermes-gateway.service can get stuck in stop-sigterm and be SIGKILLed on restart when DingTalk is configured, because the adapter's disconnect() cancels the stream task but never closes the SDK websocket — it just waits for the remote side to time out.

Changes (from Asunfly's commit)

• Explicitly await stream_client.websocket.close() at the start of disconnect() so the SDK's internal recv loop exits promptly.
• Bound the stream task await with asyncio.wait_for(..., timeout=2.0) instead of an unbounded await, and catch TimeoutError so disconnect never hangs.
• Regression test: test_disconnect_closes_session_websocket — mocks a websocket on _stream_client, kicks a blocked stream task, calls disconnect(), asserts websocket.close was awaited exactly once and the task reference was cleared.

Tests

• tests/gateway/test_dingtalk.py: 29 passed (includes the new regression test + the 8 we added in fix(dingtalk): support dingtalk-stream 0.24+ SDK (async process, CallbackMessage, oapi webhooks, TextContent) #11471).
• Cherry-pick applied cleanly on top of fix(dingtalk): support dingtalk-stream 0.24+ SDK (async process, CallbackMessage, oapi webhooks, TextContent) #11471 — no conflicts with the async process() / _extract_text changes.

Authorship

Commit 7099c557 preserves Asunfly <Asunfly@users.noreply.github.com> as author. Merge with --rebase to keep attribution. Also adds Asunfly to scripts/release.py AUTHOR_MAP so the release CI doesn't block on unmapped email.

Closes

Closes #10070 on merge with credit.