历史文档映射（Legacy → Handbook）

为避免旧文档分散阅读，本页给出迁移映射。

架构总览类

Legacy 文档	Handbook 页面
talk-to-data-architecture.md	system-architecture.md
talk-to-data-enterprise-agentic-bi-architecture.md	system-architecture.md, design-decisions.md
talk-to-data-llm-ml-hybrid-agentic-bi.md	backend.md, quality-evaluation.md

语义层（Layer 1/2/3）类

Legacy 文档	Handbook 页面
talk-to-data-metadata-spec-layer-1.md	semantic-plane.md, semantic-maintainer-manual.md
talk-to-data-metadata-ops-layer-1.md	semantic-maintainer-manual.md, development-workflow.md
talk-to-data-terminology-spec-layer-2.md	semantic-plane.md, semantic-maintainer-manual.md
talk-to-data-terminology-ops-layer-2.md	semantic-maintainer-manual.md
talk-to-data-business-knowledge-spec-layer-3.md	semantic-plane.md, design-decisions.md
talk-to-data-business-knowledge-ops-layer-3.md	semantic-maintainer-manual.md, operations.md
talk-to-data-semantic-governance-architecture.md	semantic-plane.md, system-architecture.md
talk-to-data-semantic-plane-architecture-discuss.md	semantic-plane.md, design-decisions.md
talk-to-data-semantic-plane-governance-discuss.md	semantic-maintainer-manual.md
metadata-developer-guide.md	semantic-maintainer-manual.md

Backend / API / AI Agent 类

Legacy 文档	Handbook 页面
talk-to-data-backend-service.md	backend.md, operations.md

评估与对比类

Legacy 文档	Handbook 页面
talk-to-data-llm-as-a-judge-specification.md	quality-evaluation.md
talk-to-data-semantic-assets-llm-as-a-judge-specification.md	quality-evaluation.md
talk-to-data-bi-container-vs-nextjs-ai-sdk-evaluation.md	web.md, design-decisions.md

处理策略

• Legacy 文档保留在仓库中，作为历史讨论与背景资料。
• Handbook 作为唯一“当前态”维护入口。
• 新增设计与运维内容统一写入 docs/handbook/，不再新增 talk-to-data-* 文档。