outbound-screen.ts held every locale's dose, risk, causal, continuation
and change-stem patterns plus the shared units and slot builder, and
grew with each language. The banks now live in
outbound-screen/locales/<locale>.ts, one per language, each exporting
the same LocaleBank shape; the units, target-dose shape, object slot
and generic-name stems are in outbound-screen/shared.ts. The screen
composes them per locale and keeps the matching logic, the
continuation rule and the general rationale.
No pattern changed: compiling the old and the new module and comparing
every bank of every locale, with and without a medication-name list,
gives the same regular expressions (108 of 108 identical), and the
screen tests still block and pass the same sentences in every locale.
The screen is 457 lines instead of 1,597, and buildDoseChangeClass is
a four-line composition.