Mindspace Dsh Local Rag

Key features

• it retains vector + BM25+, RRF fusion, and child-hit/parent-return retrieval
• model catalog, selection, download/cancel, explicit start/stop, and next-boot auto-start
• it exposes retrieval through the standard DSH defineTool mechanism so the active model decides when to search
• it adds native DSH compaction/end ingestion, per-session isolation, source provenance, document revisions, and a local model lifecycle
• it does not patch the chat provider or inject retrieval into every prompt.