Add Polars compare tool#591

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paddymul wants to merge 3 commits intomainfrom

feat/polars-compare

Commits on Feb 25, 2026

Add Polars compare tool (col_join_dfs for Polars DataFrames)

paddymul
and
claude
committed

Commits on Feb 26, 2026

Use marker columns for membership detection instead of key nullness

paddymul
and
claude
committed
Merge branch 'main' into feat/polars-compare
paddymul
authored