chiguyong 2844eeb548 feat(streaming): Phase C - LLM streaming + ReAct events + SSE endpoint ... U8: StreamChunk protocol + OpenAI chat_stream + Gateway streaming with usage tracking U9: ReActEvent dataclass + execute_stream() yielding thinking/tool_call/tool_result/final_answer U10: POST /tasks/stream SSE endpoint + Client SDK stream_task() 15 new tests passing, no regression.		2026-06-06 11:54:17 +08:00
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agentkit	feat(streaming): Phase C - LLM streaming + ReAct events + SSE endpoint	2026-06-06 11:54:17 +08:00