feat(i18n): add Spanish language support (#272)

Add Spanish locale registration, UI language selection, translated i18n strings, and Spanish templates/examples.

Also remove internal .claude scheduled task files from the repository and extend locale error-code coverage.

Signed-off-by: hqhq1025 <1506751656@qq.com>

Author: cifuentesantonio

.changeset/add-spanish-support.md

@@ -0,0 +1,13 @@
+---
+'@open-codesign/desktop': minor
+'@open-codesign/i18n': patch
+'@open-codesign/templates': patch
+---
+
+feat(i18n): add full Spanish (ES) language support
+
+Added comprehensive Spanish (Neutral Latin American) localization.
+- Translated 889 core i18n keys in `packages/i18n`.
+- Translated dashboard templates and examples catalog in `packages/templates`.
+- Registered 'es' locale in the UI (LanguageToggle and Settings).
+- Updated IPC handlers in `apps/desktop` to support Spanish locale persistence.

.claude/scheduled_tasks.json

@@ -80,7 +80,13 @@ export function registerLocaleIpc(): void {
       lower.startsWith('zh-hans') ||
       lower === 'zh-cn' ||
       lower === 'zh_cn' ||
-      lower.startsWith('en');
+      lower.startsWith('en') ||
+      lower === 'pt-br' ||
+      lower.startsWith('pt-') ||
+      lower === 'pt_br' ||
+      lower === 'es' ||
+      lower.startsWith('es-') ||
+      lower === 'es_';
     if (!recognized) {
       throw new Error(
         `locale:set received unsupported locale "${raw}"; expected one of: ${availableLocales.join(', ')}`,

.claude/scheduled_tasks.lock

@@ -6,7 +6,7 @@ import { useEffect, useState } from 'react';
 
 const noDragStyle = { WebkitAppRegion: 'no-drag' } as CSSProperties;
 
-const LOCALE_CYCLE: Locale[] = ['en', 'zh-CN', 'pt-BR'];
+const LOCALE_CYCLE: Locale[] = ['en', 'es', 'pt-BR', 'zh-CN'];
 
 function nextLocale(locale: Locale): Locale {
   const i = LOCALE_CYCLE.indexOf(locale);
@@ -16,6 +16,7 @@ function nextLocale(locale: Locale): Locale {
 function localeLabel(locale: Locale): string {
   if (locale === 'zh-CN') return 'ZH';
   if (locale === 'pt-BR') return 'PT';
+  if (locale === 'es') return 'ES';
   return 'EN';
 }
 

apps/desktop/src/main/locale-ipc.ts

@@ -2153,8 +2153,9 @@ function AppearanceTab() {
             onChange={handleLocaleChange}
             options={[
               { value: 'en', label: t('settings.appearance.langEn') },
-              { value: 'zh-CN', label: t('settings.appearance.langZhCN') },
+              { value: 'es', label: t('settings.appearance.langEs') },
               { value: 'pt-BR', label: t('settings.appearance.langPtBR') },
+              { value: 'zh-CN', label: t('settings.appearance.langZhCN') },
             ]}
           />
         </Row>

apps/desktop/src/renderer/src/components/LanguageToggle.tsx

@@ -8,6 +8,8 @@
   "exports": {
     ".": "./src/index.ts",
     "./locales/en": "./src/locales/en.json",
+    "./locales/es": "./src/locales/es.json",
+    "./locales/pt-BR": "./src/locales/pt-BR.json",
     "./locales/zh-CN": "./src/locales/zh-CN.json"
   },
   "scripts": {

apps/desktop/src/renderer/src/components/Settings.tsx

@@ -1,12 +1,16 @@
 import { ERROR_CODES } from '@open-codesign/shared';
 import { describe, expect, it } from 'vitest';
 import en from './locales/en.json';
+import es from './locales/es.json';
+import ptBR from './locales/pt-BR.json';
 import zhCN from './locales/zh-CN.json';
 
 describe('error-code i18n coverage', () => {
   const locales = [
     { name: 'en', data: en as unknown as { err?: Record<string, string> } },
     { name: 'zh-CN', data: zhCN as unknown as { err?: Record<string, string> } },
+    { name: 'pt-BR', data: ptBR as unknown as { err?: Record<string, string> } },
+    { name: 'es', data: es as unknown as { err?: Record<string, string> } },
   ];
 
   for (const locale of locales) {

packages/i18n/package.json

@@ -16,18 +16,20 @@ import i18next from 'i18next';
 import { useCallback } from 'react';
 import { initReactI18next, useTranslation } from 'react-i18next';
 import en from './locales/en.json';
+import es from './locales/es.json';
 import ptBR from './locales/pt-BR.json';
 import zhCN from './locales/zh-CN.json';
 
-export const availableLocales = ['en', 'zh-CN', 'pt-BR'] as const;
+export const availableLocales = ['en', 'es', 'pt-BR', 'zh-CN'] as const;
 export type Locale = (typeof availableLocales)[number];
 
 const DEFAULT_LOCALE: Locale = 'en';
 
 const resources = {
   en: { translation: en },
-  'zh-CN': { translation: zhCN },
+  es: { translation: es },
   'pt-BR': { translation: ptBR },
+  'zh-CN': { translation: zhCN },
 } as const;
 
 export function isSupportedLocale(value: string | undefined | null): value is Locale {
@@ -45,6 +47,9 @@ export function normalizeLocale(value: string | undefined | null): Locale {
   if (lower === 'pt-br' || lower === 'pt_br' || lower === 'pt' || lower.startsWith('pt-')) {
     return 'pt-BR';
   }
+  if (lower === 'es' || lower.startsWith('es-') || lower === 'es_') {
+    return 'es';
+  }
   if (lower.startsWith('en')) return 'en';
   console.warn(
     `[i18n] unsupported locale "${value}", falling back to "${DEFAULT_LOCALE}". ` +

packages/i18n/src/err-codes.test.ts

@@ -397,7 +397,8 @@
       "languageLoadFailed": "Failed to load language",
       "langEn": "English",
       "langZhCN": "中文 (简体)",
-      "langPtBR": "Português (BR)"
+      "langPtBR": "Português (BR)",
+      "langEs": "Español"
     },
     "language": {
       "label": "Language",