chore(i18n): drop legacy free-text country/nationality columns

Test-data only — no production migration needed (per earlier decision).
Schema is now ISO-only; readers convert ISO codes to localized names where
human-readable output is required (EOI documents, invoices, portal).

Migration 0016 drops:
  - clients.nationality
  - companies.incorporation_country
  - client_addresses.{state_province, country}
  - company_addresses.{state_province, country}

Code paths that previously read free-text values now read the ISO column
and pass through `getCountryName()` / `getSubdivisionName()` for rendering.
Document templates ({{client.nationality}}), portal client view, EOI/
reservation-agreement contexts, and invoice billing addresses all updated.

Public yacht-interest endpoint (/api/public/interests) drops the legacy
fields from its insert path and writes ISO codes only. The Zod validators
no longer accept the legacy fields — older website builds posting raw
'incorporationCountry' / 'country' / 'stateProvince' will get 400s.
Server-side phone normalization is unchanged.

Seed data updated to use ISO codes (GB/FR/ES/GR/SE/IT/GH/MC/PA), spread
across continents to keep test fixtures realistic.

Test assertions updated to match the new render shape (e.g.
'United States' not 'US', 'California' not 'CA').

Vitest: 741 -> 741 (unchanged count; assertions updated, no new tests).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

src/components/companies/company-columns.tsx

@@ -19,7 +19,6 @@ export interface CompanyRow {
   legalName: string | null;
   taxId: string | null;
   registrationNumber: string | null;
-  incorporationCountry: string | null;
   incorporationCountryIso: string | null;
   incorporationSubdivisionIso: string | null;
   incorporationDate: string | null;

src/components/companies/company-detail-header.tsx

@@ -20,7 +20,6 @@ interface CompanyDetailHeaderCompany {
   legalName: string | null;
   taxId: string | null;
   registrationNumber: string | null;
-  incorporationCountry: string | null;
   incorporationCountryIso: string | null;
   incorporationSubdivisionIso: string | null;
   incorporationDate: string | null;
@@ -132,7 +131,6 @@ export function CompanyDetailHeader({ company }: CompanyDetailHeaderProps) {
           legalName: company.legalName,
           taxId: company.taxId,
           registrationNumber: company.registrationNumber,
-          incorporationCountry: company.incorporationCountry,
           incorporationCountryIso: company.incorporationCountryIso,
           incorporationSubdivisionIso: company.incorporationSubdivisionIso,
           incorporationDate: company.incorporationDate,

src/components/companies/company-detail.tsx

@@ -16,7 +16,6 @@ export interface CompanyData {
   legalName: string | null;
   taxId: string | null;
   registrationNumber: string | null;
-  incorporationCountry: string | null;
   incorporationCountryIso: string | null;
   incorporationSubdivisionIso: string | null;
   incorporationDate: string | null;

src/components/companies/company-form.tsx

@@ -41,7 +41,6 @@ interface CompanyFormProps {
     legalName: string | null;
     taxId: string | null;
     registrationNumber: string | null;
-    incorporationCountry: string | null;
     incorporationCountryIso: string | null;
     incorporationSubdivisionIso: string | null;
     incorporationDate: string | null;
@@ -83,7 +82,6 @@ export function CompanyForm({ open, onOpenChange, company }: CompanyFormProps) {
         legalName: company.legalName ?? undefined,
         taxId: company.taxId ?? undefined,
         registrationNumber: company.registrationNumber ?? undefined,
-        incorporationCountry: company.incorporationCountry ?? undefined,
         incorporationCountryIso: company.incorporationCountryIso ?? undefined,
         incorporationSubdivisionIso: company.incorporationSubdivisionIso ?? undefined,
         incorporationDate: company.incorporationDate

src/components/companies/company-list.tsx

@@ -145,7 +145,6 @@ export function CompanyList() {
             legalName: editCompany.legalName,
             taxId: editCompany.taxId,
             registrationNumber: editCompany.registrationNumber,
-            incorporationCountry: editCompany.incorporationCountry,
             incorporationCountryIso: editCompany.incorporationCountryIso,
             incorporationSubdivisionIso: editCompany.incorporationSubdivisionIso,
             incorporationDate: editCompany.incorporationDate,

src/components/companies/company-tabs.tsx

@@ -38,7 +38,6 @@ interface CompanyTabsCompany {
   legalName: string | null;
   taxId: string | null;
   registrationNumber: string | null;
-  incorporationCountry: string | null;
   incorporationCountryIso: string | null;
   incorporationSubdivisionIso: string | null;
   incorporationDate: string | null;