docs: add Data Query and hybrid indicator search architecture docs - #18
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Add a conceptual overview and an engineering deep dive describing how the Data Query tool turns natural-language questions into grounded SDMX data, and how hybrid indicator search (keyword + semantic + LLM relevance) works. Index both pages in the architecture README.
iliia-veselov
approved these changes
Jun 5, 2026
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Description of changes
Adds two architecture pages documenting how Data Query with hybrid indicator search works:
architecture/data-query-hybrid-search.md— conceptual overview: the end-to-end pipeline from a natural-language query to grounded SDMX data, how hybrid indicator search combines keyword + semantic retrieval with LLM relevance scoring, dimension/availability grounding, and configuration at a glance.architecture/data-query-internals.md— engineering deep dive across the same pipeline, referencing components by name (no line-number references).Both pages are cross-linked and indexed in
architecture/README.md. Diagrams use mermaid. Docs only — no code changes.Checklist
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