osiman/SuperBizAgent-java

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zhuyongxin ac1f831903 feat(rag): chunk evidence identity, dedup, and search port

Preserve same-document multi-chunk evidence with evidenceKey identity,
per-document caps, retrieve-k/return-n split, and a dense KnowledgeSearchPort.
Archives Delivery 1 OpenSpec change as the foundation for hybrid retrieval.

2026-07-27 18:26:15 +08:00

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Evidence: rag-chunk-evidence-identity-dedup

代码证据（变更前）

KnowledgeEvidencePostProcessor.sourceKey 使用 source/title 去重
RagResultProjector 用 source 回退 document_id 并 HashSet 去重
写入路径 metadata 已有 docId/chunkIndex，读路径未一等化

规格证据

旧 openspec/specs/rag-knowledge-retrieval 要求 source 级 dedup（本 change 以 delta 修正）
docs/milvus-hybrid-search-integration-checklist.md §1.1 定义 Delivery 1 地基

验证证据

单测覆盖 multi-chunk keep / true-dup merge / maxChunksPerDocument / projector same-source multi-chunk