Build the 117th->119th CD vintage crosswalk from Census sources#288

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cd-vintage-crosswalk-205

Commits on Jul 2, 2026

Build the 117th->119th CD vintage crosswalk from Census sources

MaxGhenis
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claude
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Move crosswalk artifact to us_runtime/data; default builder crosswalk

MaxGhenis
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claude
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Correct crosswalk help text to us_runtime.data location

MaxGhenis
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claude
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