feat: adds Nia's data provider and corresponding JSON data file#350

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nia-source wants to merge 3 commits intocode-differently:mainfrom

nia-source:lesson09

Commits on Mar 25, 2025

feat: adds Nia's data provider and corresponding JSON data file
nia-source
committed
feat: adds NiaPProvider class with column type mappings
nia-source
committed

Commits on Apr 3, 2025

chore: fixed format
anthonydmays
committed