Fix user detail GraphQL query

Return monthly purchase totals with the correct GraphQL scalar and align frontend queries and generated types with the upgraded schema.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

frontend/src/utils/users.ts

@@ -7,7 +7,7 @@ const activeLimitDays = 365 / 2;
 type FilterableUser = AllUsersQuery["allUsers"][0];
 
 export const activeUserFilter = (user: FilterableUser) => {
-  const balance = user.profile?.balance || 0;
+  const balance = Number(user.profile?.balance) || 0;
   const active =
     !!user.profile?.lastPurchaseDate && parseISO(user.profile.lastPurchaseDate) >= subDays(new Date(), activeLimitDays);
   return balance >= 15 && active;