Name the version in every seed promise, and say to regenerate seeded fixtures when it changes

todo.md

@@ -135,7 +135,7 @@
 
 ### 77. Split the shipped data into Go modules per locale and country, which a library imports by choice, and embed every one in the CLI.
 
-The CLI binary carries every module and may grow to hundreds of MB; a library imports only what it uses, as it imports any dependency, and nothing is fetched at run time. Goal 2 says what ships where. The maintainer decided on 2026-10-04: one module per locale, one per country's `geo/` tree, and one for `misc`. A module registers nothing when imported; the library passes it to `New` as an option, per the technical principles "Compose, do not entangle" and "Explicit over implicit". Still to decide: what a bare `New()` loads; whether a module's data is an `fs.FS` passed to the existing `WithDataFS` or a new option such as `WithData(svse.Data)`; and whether `WithoutShippedData` goes. Before the module API ships, a panel of the README's audience personas tries pulling in data with it.
+The CLI binary carries every module and may grow to hundreds of MB; a library imports only what it uses, as it imports any dependency, and nothing is fetched at run time. Goal 2 says what ships where. The maintainer decided on 2026-10-04: one module per locale, one per country's `geo/` tree, and one for `misc`. A module registers nothing when imported; the code importing it passes it to `New` as an option, per the technical principles "Compose, do not entangle" and "Explicit over implicit". Still to decide: what a bare `New()` loads; whether a module's data is an `fs.FS` passed to the existing `WithDataFS` or a new option such as `WithData(svse.Data)`; and whether `WithoutShippedData` goes. Before the module API ships, a panel of the README's audience personas tries pulling in data with it.
 
 ### 78. Ship 10% of every place's streets, at least 10, and 10% of all US places drawn by population, each place weighted by population.