fix(costs): KGS is selectable as default/expense currency (#1400)

client/src/components/Budget/BudgetPanel.constants.ts

@@ -2,8 +2,8 @@ export const CURRENCIES = [
   'EUR', 'USD', 'GBP', 'JPY', 'CHF', 'CZK', 'PLN', 'SEK', 'NOK', 'DKK',
   'TRY', 'THB', 'AUD', 'CAD', 'NZD', 'BRL', 'MXN', 'INR', 'IDR', 'MYR',
   'PHP', 'SGD', 'KRW', 'CNY', 'HKD', 'TWD', 'ZAR', 'AED', 'SAR', 'ILS',
-  'EGP', 'MAD', 'HUF', 'RON', 'BGN', 'HRK', 'ISK', 'RUB', 'UAH', 'BDT',
-  'LKR', 'VND', 'CLP', 'COP', 'PEN', 'ARS',
+  'EGP', 'MAD', 'HUF', 'RON', 'BGN', 'HRK', 'ISK', 'RUB', 'UAH', 'KGS',
+  'BDT', 'LKR', 'VND', 'CLP', 'COP', 'PEN', 'ARS',
 ]
 
 export const SYMBOLS: Record<string, string> = {
@@ -13,8 +13,8 @@ export const SYMBOLS: Record<string, string> = {
   PHP: '₱', SGD: 'S$', KRW: '₩', CNY: '¥', HKD: 'HK$', TWD: 'NT$',
   ZAR: 'R', AED: 'د.إ', SAR: '﷼', ILS: '₪', EGP: 'E£', MAD: 'MAD',
   HUF: 'Ft', RON: 'lei', BGN: 'лв', HRK: 'kn', ISK: 'kr', RUB: '₽',
-  UAH: '₴', BDT: '৳', LKR: 'Rs', VND: '₫', CLP: 'CL$', COP: 'CO$',
-  PEN: 'S/.', ARS: 'AR$',
+  UAH: '₴', KGS: 'сом', BDT: '৳', LKR: 'Rs', VND: '₫', CLP: 'CL$',
+  COP: 'CO$', PEN: 'S/.', ARS: 'AR$',
 }
 
 export const PIE_COLORS = ['#6366f1', '#ec4899', '#f59e0b', '#10b981', '#3b82f6', '#8b5cf6', '#ef4444', '#14b8a6', '#f97316', '#06b6d4', '#84cc16', '#a855f7']

client/src/utils/formatters.test.ts

@@ -1,5 +1,6 @@
 import { describe, it, expect } from 'vitest'
-import { splitReservationDateTime, resolveDayId } from './formatters'
+import { splitReservationDateTime, resolveDayId, formatMoney } from './formatters'
+import { CURRENCIES, SYMBOLS } from '../components/Budget/BudgetPanel.constants'
 import type { Day } from '../types'
 
 const days = [
@@ -25,6 +26,19 @@ describe('resolveDayId', () => {
   })
 })
 
+describe('KGS currency (#1400)', () => {
+  it('is selectable everywhere the shared currency list feeds', () => {
+    expect(CURRENCIES).toContain('KGS')
+    expect(SYMBOLS.KGS).toBeTruthy()
+  })
+  it('formats without throwing', () => {
+    // Lenient: older ICU builds may lack ru-KG/KGS display data and fall back.
+    const out = formatMoney(1234.56, 'KGS', 'en')
+    expect(out).toMatch(/сом|KGS/)
+    expect(out).toContain('234')
+  })
+})
+
 describe('splitReservationDateTime', () => {
   it('parses full ISO datetime', () => {
     expect(splitReservationDateTime('2026-06-25T10:00')).toEqual({ date: '2026-06-25', time: '10:00' })

client/src/utils/formatters.ts

@@ -52,9 +52,9 @@ const CURRENCY_LOCALE: Record<string, string> = {
   PHP: 'en-PH', SGD: 'en-SG', KRW: 'ko-KR', CNY: 'zh-CN', HKD: 'en-HK',
   TWD: 'zh-TW', ZAR: 'en-ZA', AED: 'en-AE', SAR: 'en-SA', ILS: 'he-IL',
   EGP: 'en-EG', MAD: 'fr-MA', HUF: 'hu-HU', RON: 'ro-RO', BGN: 'bg-BG',
-  HRK: 'hr-HR', ISK: 'is-IS', RUB: 'ru-RU', UAH: 'uk-UA', BDT: 'en-BD',
-  LKR: 'en-LK', VND: 'vi-VN', CLP: 'es-CL', COP: 'es-CO', PEN: 'es-PE',
-  ARS: 'es-AR',
+  HRK: 'hr-HR', ISK: 'is-IS', RUB: 'ru-RU', UAH: 'uk-UA', KGS: 'ru-KG',
+  BDT: 'en-BD', LKR: 'en-LK', VND: 'vi-VN', CLP: 'es-CL', COP: 'es-CO',
+  PEN: 'es-PE', ARS: 'es-AR',
 }
 
 export function currencyLocale(currency: string): string {