[KM-652] feat(query): single-level FK joins in QueryIR (T4)

[NOTICKET] Adopt verb-first skill naming

[KM-642] refactor(tools): rename data-access tools to data/knowledge naming

feat/Planner Agent (#2)

feat/Catalog Retrieval System (#1)

[KM-438][KM-439] Improve Retrieval and Querying feature (#15)

Make a query for tabular (XLSX and CSV) (#14)

Merge dev_new to main (improve retriever and add querying) (#13)