之前沉淀直接堆砌对话原文。现默认用大模型按 wiki-capture 规范提炼为 Context/Finding/Reasoning/Implications/Related 结构化陈述式知识,过滤寒暄与中间推理;LLM 不可用或解析失败时回退规则抽取。新增 llm_extractor.py + 配置 llm_extract_enabled/extract_model_name/extract_max_input_chars。 Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>