-- Addendum to supabase/schema.sql — run after that file.
--
-- Staatsbürgerschaft and Wohnland now use a searchable picker over the
-- full UN member states list (193 countries, see lib/countries.ts)
-- instead of the original ~9/5-value picklists. The old CHECK constraints
-- would reject nearly all of those values, so they're dropped here. The
-- app is the source of truth for valid values (same approach the rest of
-- the app already relies on for large open-ended pickers); the columns
-- stay plain text (nationality keeps its NOT NULL).
alter table employees drop constraint if exists employees_nationality_check;
alter table employees drop constraint if exists employees_address_country_check;