Merge branch 'master-nj' into 'master'

增强 Deep Research 可靠性，并接入 8BF 任务卡片与会商上下文。

See merge request knowledge-base-bj/deerflow-code!25

.gitignore

@@ -93,6 +93,12 @@ offline-backend-20260512/backend/tests/*
 # Keep the model configuration regression coverage versioned even though
 # this deployment repository otherwise ignores newly added backend tests.
 !offline-backend-20260512/backend/tests/test_model_management.py
+# Deep-research reliability regression coverage.
+!offline-backend-20260512/backend/tests/test_deep_research_persistence.py
+!offline-backend-20260512/backend/tests/test_deep_research_event_sink.py
+!offline-backend-20260512/backend/tests/test_deep_research_executor_reliability.py
+!offline-backend-20260512/backend/tests/test_deep_research_start_job.py
+!offline-backend-20260512/backend/tests/test_summarization_human_message.py
 deploy
 .history