docs: implementation plan for uscogdata expenditure_concept (repo 2 of 3)

Seven TDD tasks. Records the two measured facts the design rests on: aggregate
IG rows carry no harmonized_code (so the IG leg must COALESCE item_code), and
aggregate IG codes are year-disjoint from their modern leaf components (so
skipping NOT is_aggregate cannot double-count). Baseline measured at PASS 467.

Plan lives under .superpowers/ because docs/ is the gitignored pkgdown output
dir; .Rbuildignore'd so it never ships in the package tarball.

This commit is contained in:

jared

2026-07-27 09:02:42 -04:00

parent fa40266d07

commit fcecd62a03

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.Rbuildignore

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@@ -16,3 +16,4 @@
 ^Meta$
 ^\.gitea$
 ^CLAUDE\.md$
 ^\.superpowers$