Ship en_US, sv_SE, misc, geo/SE and geo/US as Go packages exporting FS, listed by data.Modules(), and fail a bare New naming WithDataFS

AGENTS.md

@@ -88,7 +88,7 @@ In [docs/decisions.md](docs/decisions.md):
 - A cell may read a reference, and each row its own
 - A path is walked once without drawing before it is walked for real
 - A country's postal codes and streets are siblings under its locality
-- A locale's `address` reads its country's `geo` tree, so a locale folder is no data set on its own
+- A locale's `address` reads its country's `geo` tree, and the locale module's manifest reads that module
 - The default embed holds every Swedish postort the import can place and give a street-delivery code and a street, and the US places of 25,000 or more
 - A locale's `address` binds its country's record once and prints it whole
 - A postort's kommun comes from its name, its tätort or its codes, never from distance