feat(i18n): country/phone/timezone/subdivision primitives + form wiring

Cross-cutting i18n polish for forms across the marina + residential + company
domains. Introduces a single source of truth for country/phone/timezone/
subdivision data and replaces every nationality-as-free-text and timezone-
as-string Input with a dedicated combobox.

PR1  Countries — ALL_COUNTRY_CODES (~250 ISO-3166-1 alpha-2), Intl.DisplayNames
     for localized labels, detectDefaultCountry() with navigator-region
     fallback to US, CountryCombobox with regional-indicator flag glyphs +
     compact mode for inline use.
PR2  Phone — libphonenumber-js wrapper (parsePhone / formatAsYouType /
     callingCodeFor), PhoneInput with flag dropdown + national-format
     AsYouType + paste-detect that flips the country dropdown for pasted
     international strings.
PR3  Timezones — country->IANA map (250 entries, multi-zone for AU/BR/CA/CD/
     ID/KZ/MN/MX/RU/US), formatTimezoneLabel ("Europe/London (UTC+1)"),
     TimezoneCombobox with Suggested/All grouping driven by countryHint.
PR4  Subdivisions — wraps the iso-3166-2 npm package (~5000 ISO 3166-2
     codes for every country), per-country cache, SubdivisionCombobox with
     "Pick a country first" / "No regions available" empty states.
PR5  Schema deltas (migration 0015) — clients.nationality_iso, clientContacts
     {value_e164, value_country}, clientAddresses {country_iso, subdivision_iso},
     residentialClients {phone_e164, phone_country, nationality_iso, timezone,
     place_of_residence_country_iso, subdivision_iso}, companies {incorporation_
     country_iso, incorporation_subdivision_iso}, companyAddresses {country_iso,
     subdivision_iso}. Plus shared zod validators (validators/i18n.ts) used
     by every entity validator + route handler.
PR6  ClientForm + ClientDetail — CountryCombobox replaces nationality Input,
     TimezoneCombobox replaces timezone Input (driven by nationalityIso hint),
     PhoneInput conditionally rendered for phone/whatsapp contacts. Inline
     editors (InlineCountryField / InlineTimezoneField / InlinePhoneField)
     for the detail-page overview rows + ContactsEditor.
PR7  Residential client form + detail — phone -> PhoneInput, nationality/
     timezone/place-of-residence-country/subdivision rows in both create
     sheet and inline-editable detail view. Subdivision wipes when country
     flips since codes are country-scoped.
PR8  Company form + detail — incorporation country -> CountryCombobox,
     incorporation region -> SubdivisionCombobox in both modes.
PR9  Public inquiry endpoint — accepts pre-normalized phoneE164/phoneCountry
     and i18n fields from newer website builds, server-side parsePhone()
     fallback for legacy raw-international submissions. Old Nuxt builds
     keep working unchanged.

Tests: 4 unit suites for the primitives (25 tests), 1 integration spec for
the public phone-normalization path (3 tests), 1 smoke spec asserting the
combobox triggers render in all three create sheets.

Test totals: vitest 713 -> 741 (+28).

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

pnpm-lock.yaml

@@ -128,9 +128,15 @@ importers:
       ioredis:
         specifier: ^5.4.0
         version: 5.10.0
+      iso-3166-2:
+        specifier: ^1.0.0
+        version: 1.0.0
       jose:
         specifier: ^6.2.1
         version: 6.2.1
+      libphonenumber-js:
+        specifier: ^1.12.42
+        version: 1.12.42
       lucide-react:
         specifier: ^0.460.0
         version: 0.460.0(react@19.2.4)
@@ -207,6 +213,9 @@ importers:
       '@playwright/test':
         specifier: ^1.58.2
         version: 1.58.2
+      '@types/iso-3166-2':
+        specifier: ^1.0.4
+        version: 1.0.4
       '@types/mailparser':
         specifier: ^3.4.6
         version: 3.4.6
@@ -2264,6 +2273,9 @@ packages:
   '@types/estree@1.0.8':
     resolution: {integrity: sha512-dWHzHa2WqEXI/O1E9OjrocMTKJl2mSrEolh1Iomrv6U+JuNwaHXsXx9bLu5gG7BUWFIN0skIQJQ/L1rIex4X6w==}
 
+  '@types/iso-3166-2@1.0.4':
+    resolution: {integrity: sha512-tXaeT4FDobC8rAy6LoFvbGA4vhOQQNIdSRC5DAoYfT3D9ohnKHkDFxHzSln6WqTKVeKLrnMiMQubM8m3fqNp/w==}
+
   '@types/js-cookie@3.0.6':
     resolution: {integrity: sha512-wkw9yd1kEXOPnvEeEV1Go1MmxtBJL0RR79aOTAApecWFVu7w0NNXNqhcWgvw2YgZDYadliXkl14pa3WXw5jlCQ==}
 
@@ -3887,6 +3899,9 @@ packages:
     resolution: {integrity: sha512-6B3tLtFqtQS4ekarvLVMZ+X+VlvQekbe4taUkf/rhVO3d/h0M2rfARm/pXLcPEsjjMsFgrFgSrhQIxcSVrBz8w==}
     engines: {node: '>=18'}
 
+  iso-3166-2@1.0.0:
+    resolution: {integrity: sha512-xLAazfKZzwlsg/Zz/GQGQk3jJez5/2ORrjD3TjSuqz/arMht/xTK49c0GOE3afO/gEd9tHtBVVlfBla01unUng==}
+
   istanbul-lib-coverage@3.2.2:
     resolution: {integrity: sha512-O8dpsF+r0WV/8MNRKfnmrtCWhuKjxrq2w+jpzBL5UZKTi2LeVWnWOmWRxFlesJONmc+wLAGvKQZEOanko0LFTg==}
     engines: {node: '>=8'}
@@ -3975,6 +3990,9 @@ packages:
   libmime@5.3.7:
     resolution: {integrity: sha512-FlDb3Wtha8P01kTL3P9M+ZDNDWPKPmKHWaU/cG/lg5pfuAwdflVpZE+wm9m7pKmC5ww6s+zTxBKS1p6yl3KpSw==}
 
+  libphonenumber-js@1.12.42:
+    resolution: {integrity: sha512-oKQFPTibqQwZZkChCDVMFVJXMZdyJNqDWZWYNn8BgyAaK/6yFJEowxCY0RVFirRyWP63hMRuKlkSEd9qlvbWXg==}
+
   libqp@2.1.1:
     resolution: {integrity: sha512-0Wd+GPz1O134cP62YU2GTOPNA7Qgl09XwCqM5zpBv87ERCXdfDtyKXvV7c9U22yWJh44QZqBocFnXN11K96qow==}
 
@@ -7311,6 +7329,8 @@ snapshots:
 
   '@types/estree@1.0.8': {}
 
+  '@types/iso-3166-2@1.0.4': {}
+
   '@types/js-cookie@3.0.6': {}
 
   '@types/json-schema@7.0.15': {}
@@ -9172,6 +9192,8 @@ snapshots:
 
   isexe@3.1.5: {}
 
+  iso-3166-2@1.0.0: {}
+
   istanbul-lib-coverage@3.2.2: {}
 
   istanbul-lib-report@3.0.1:
@@ -9259,6 +9281,8 @@ snapshots:
       libbase64: 1.3.0
       libqp: 2.1.1
 
+  libphonenumber-js@1.12.42: {}
+
   libqp@2.1.1: {}
 
   lightningcss-android-arm64@1.32.0: