Pre-rename in preparation for basket mode. All existing callers in this
package and cog_explorer/ pass the first argument positionally, so this
rename is non-breaking. No deprecation alias added per design spec
(no external consumers; package is pre-release v0.1.0).
@param roxygen also updated to match the new formal; man/cog_gov_search.Rd
regenerated via devtools::document().
jared
68b72faeae