diff --git a/.changeset/ko-locale-core.md b/.changeset/ko-locale-core.md
new file mode 100644
index 00000000..8e8bed95
--- /dev/null
+++ b/.changeset/ko-locale-core.md
@@ -0,0 +1,6 @@
+---
+"@open-codesign/desktop": patch
+"@open-codesign/i18n": patch
+---
+
+Feat: add Korean locale core support across the shared i18n runtime and desktop language selection UI.
\ No newline at end of file
diff --git a/apps/desktop/src/renderer/src/components/LanguageToggle.tsx b/apps/desktop/src/renderer/src/components/LanguageToggle.tsx
index 9e04db6a..563a37fa 100644
--- a/apps/desktop/src/renderer/src/components/LanguageToggle.tsx
+++ b/apps/desktop/src/renderer/src/components/LanguageToggle.tsx
@@ -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', 'zh-CN', 'pt-BR', 'ko'];
 
 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 === 'ko') return 'KO';
   return 'EN';
 }
 
diff --git a/apps/desktop/src/renderer/src/components/Settings.tsx b/apps/desktop/src/renderer/src/components/Settings.tsx
index 3524b7ad..e922f05a 100644
--- a/apps/desktop/src/renderer/src/components/Settings.tsx
+++ b/apps/desktop/src/renderer/src/components/Settings.tsx
@@ -2155,6 +2155,7 @@ function AppearanceTab() {
               { value: 'en', label: t('settings.appearance.langEn') },
               { value: 'zh-CN', label: t('settings.appearance.langZhCN') },
               { value: 'pt-BR', label: t('settings.appearance.langPtBR') },
+              { value: 'ko', label: t('settings.appearance.langKo') },
             ]}
           />
         </Row>
diff --git a/packages/i18n/package.json b/packages/i18n/package.json
index ca7cf030..768930af 100644
--- a/packages/i18n/package.json
+++ b/packages/i18n/package.json
@@ -8,7 +8,9 @@
   "exports": {
     ".": "./src/index.ts",
     "./locales/en": "./src/locales/en.json",
-    "./locales/zh-CN": "./src/locales/zh-CN.json"
+    "./locales/zh-CN": "./src/locales/zh-CN.json",
+    "./locales/pt-BR": "./src/locales/pt-BR.json",
+    "./locales/ko": "./src/locales/ko.json"
   },
   "scripts": {
     "typecheck": "tsc --noEmit",
diff --git a/packages/i18n/src/i18n.test.ts b/packages/i18n/src/i18n.test.ts
index 5e510ea7..ac8e9392 100644
--- a/packages/i18n/src/i18n.test.ts
+++ b/packages/i18n/src/i18n.test.ts
@@ -12,6 +12,7 @@ describe('normalizeLocale', () => {
   it('returns the value unchanged when it is supported', () => {
     expect(normalizeLocale('en')).toBe('en');
     expect(normalizeLocale('zh-CN')).toBe('zh-CN');
+    expect(normalizeLocale('ko')).toBe('ko');
   });
 
   it('coalesces common Chinese variants to zh-CN', () => {
@@ -26,6 +27,11 @@ describe('normalizeLocale', () => {
     expect(normalizeLocale('en-GB')).toBe('en');
   });
 
+  it('maps Korean variants to ko', () => {
+    expect(normalizeLocale('ko-KR')).toBe('ko');
+    expect(normalizeLocale('ko_kr')).toBe('ko');
+  });
+
   it('falls back to en for unsupported locales and warns', () => {
     const warn = vi.spyOn(console, 'warn').mockImplementation(() => {});
     expect(normalizeLocale('fr-FR')).toBe('en');
@@ -62,6 +68,10 @@ describe('initI18n + setLocale (live switching)', () => {
     expect(i18n.t('chat.placeholder')).toBe('想设计什么？');
     expect(i18n.t('common.preAlpha')).toBe('预览版');
 
+    await setLocale('ko');
+    expect(i18n.t('chat.placeholder')).toBe('무엇을 디자인할지 설명하세요…');
+    expect(i18n.t('common.preAlpha')).toBe('프리 알파');
+
     await setLocale('en');
     expect(i18n.t('common.send')).toBe('Send');
   });
@@ -87,6 +97,10 @@ describe('initI18n + setLocale (live switching)', () => {
     expect(getCurrentLocale()).toBe('zh-CN');
     expect(i18n.t('common.send')).toBe('发送');
 
+    await setLocale('ko');
+    expect(getCurrentLocale()).toBe('ko');
+    expect(i18n.t('common.send')).toBe('보내기');
+
     await setLocale('en');
     expect(getCurrentLocale()).toBe('en');
     expect(i18n.t('common.send')).toBe('Send');
@@ -117,6 +131,29 @@ describe('onboarding i18n keys (Welcome / PasteKey / ChooseModel)', () => {
     expect(i18n.t('onboarding.choose.back')).toBe('Back');
   });
 
+  it('switches all onboarding strings to Korean when locale is ko', async () => {
+    const { i18n } = await import('./index');
+    await initI18n('en');
+    await setLocale('ko');
+
+    expect(i18n.t('onboarding.welcome.title')).toBe('어떤 모델로든 디자인하세요.');
+    expect(i18n.t('onboarding.welcome.tryFree')).toBe('무료로 시작하기');
+    expect(i18n.t('onboarding.welcome.useKey')).toBe('내 API 키 사용');
+    expect(i18n.t('onboarding.welcome.whereToGetKey')).toBe('키를 받는 방법');
+
+    expect(i18n.t('onboarding.paste.title')).toBe('API 키 붙여넣기');
+    expect(i18n.t('onboarding.paste.back')).toBe('뒤로');
+    expect(i18n.t('onboarding.paste.continue')).toBe('계속');
+    expect(i18n.t('onboarding.paste.connectionTest.button')).toBe('테스트');
+    expect(i18n.t('onboarding.paste.connectionTest.ok')).toBe('연결됨');
+
+    expect(i18n.t('onboarding.choose.title')).toBe('기본 모델 선택');
+    expect(i18n.t('onboarding.choose.finish')).toBe('완료');
+    expect(i18n.t('onboarding.choose.back')).toBe('뒤로');
+
+    await setLocale('en');
+  });
+
   it('switches all onboarding strings to Chinese when locale is zh-CN', async () => {
     const { i18n } = await import('./index');
     await initI18n('en');
diff --git a/packages/i18n/src/index.ts b/packages/i18n/src/index.ts
index b975fbca..3359fa26 100644
--- a/packages/i18n/src/index.ts
+++ b/packages/i18n/src/index.ts
@@ -16,10 +16,11 @@ import i18next from 'i18next';
 import { useCallback } from 'react';
 import { initReactI18next, useTranslation } from 'react-i18next';
 import en from './locales/en.json';
+import ko from './locales/ko.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', 'zh-CN', 'pt-BR', 'ko'] as const;
 export type Locale = (typeof availableLocales)[number];
 
 const DEFAULT_LOCALE: Locale = 'en';
@@ -28,6 +29,7 @@ const resources = {
   en: { translation: en },
   'zh-CN': { translation: zhCN },
   'pt-BR': { translation: ptBR },
+  ko: { translation: ko },
 } 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 === 'ko' || lower === 'ko-kr' || lower === 'ko_kr' || lower.startsWith('ko-')) {
+    return 'ko';
+  }
   if (lower.startsWith('en')) return 'en';
   console.warn(
     `[i18n] unsupported locale "${value}", falling back to "${DEFAULT_LOCALE}". ` +
diff --git a/packages/i18n/src/locales/en.json b/packages/i18n/src/locales/en.json
index 72493250..fa974319 100644
--- a/packages/i18n/src/locales/en.json
+++ b/packages/i18n/src/locales/en.json
@@ -397,7 +397,8 @@
       "languageLoadFailed": "Failed to load language",
       "langEn": "English",
       "langZhCN": "中文 (简体)",
-      "langPtBR": "Português (BR)"
+      "langPtBR": "Português (BR)",
+      "langKo": "한국어"
     },
     "language": {
       "label": "Language",
diff --git a/packages/i18n/src/locales/ko.json b/packages/i18n/src/locales/ko.json
new file mode 100644
index 00000000..6033d2ac
--- /dev/null
+++ b/packages/i18n/src/locales/ko.json
@@ -0,0 +1,1152 @@
+{
+  "common": {
+    "appName": "Open CoDesign",
+    "send": "보내기",
+    "cancel": "취소",
+    "retry": "다시 시도",
+    "save": "저장",
+    "close": "닫기",
+    "dismissNotification": "알림 닫기",
+    "settings": "설정",
+    "advanced": "고급",
+    "about": "정보",
+    "learnMore": "자세히 보기",
+    "copy": "복사",
+    "copied": "복사됨",
+    "comingSoon": "곧 제공 예정",
+    "loading": "불러오는 중…",
+    "preAlpha": "프리 알파",
+    "tagline": "BYOK · 로컬 우선 · 멀티 모델",
+    "done": "완료.",
+    "applied": "적용됨.",
+    "working": "작업 중"
+  },
+  "toast": {
+    "error": {
+      "report": "Report"
+    }
+  },
+  "loading": {
+    "stage": {
+      "sending": "Connecting…",
+      "thinking": "Thinking…",
+      "streaming": "Generating…",
+      "parsing": "Finalizing…",
+      "rendering": "Rendering preview…",
+      "done": "Done"
+    },
+    "tokens": "{{count}} tokens"
+  },
+  "canvas": {
+    "filesTab": "Files",
+    "filesTabEmpty": "No files yet",
+    "openInTab": "Open in tab",
+    "previewHint": "Thumbnail preview · double-click the file or use Open in tab for full view",
+    "tabsAriaLabel": "Open files",
+    "closeTab": "Close {{name}}",
+    "files": {
+      "sectionTitle": "Design files",
+      "sectionSubtitle": "{{count}} files",
+      "empty": "No files yet. Send a prompt to have the agent generate a design — files will show up here."
+    },
+    "newDesignDialog": {
+      "title": "New design",
+      "subtitle": "Optionally choose a local folder to sync your design files.",
+      "noWorkspace": "No folder selected",
+      "skip": "Skip",
+      "confirm": "Create"
+    },
+    "workspace": {
+      "sectionTitle": "Workspace",
+      "label": "Folder",
+      "default": "Default internal storage",
+      "choose": "Choose folder",
+      "change": "Change",
+      "open": "Open folder",
+      "clear": "Clear workspace",
+      "unavailable": "Folder not found on disk",
+      "busyGenerating": "Cannot change workspace while generating",
+      "updated": "Workspace updated",
+      "updateFailed": "Failed to update workspace",
+      "rebindTitle": "Change workspace folder?",
+      "rebindDescription": "This design already has a workspace folder. Choose how to proceed:",
+      "rebindCancel": "Cancel",
+      "rebindSwitchOnly": "Switch without copying",
+      "rebindSwitchAndCopy": "Switch and copy files"
+    },
+    "rail": {
+      "title": "Files",
+      "collapse": "Collapse files",
+      "expand": "Expand files",
+      "empty": "No files yet"
+    }
+  },
+  "preview": {
+    "empty": {
+      "title": "Design with AI",
+      "body": "Pick a starter on the left, or describe what you want to design. The result renders here in a sandboxed preview.",
+      "starterChip": "Try a starter prompt:"
+    },
+    "loading": {
+      "title": "Generating your design…"
+    },
+    "error": {
+      "title": "Generation failed",
+      "body": "Something went wrong while generating your design.",
+      "copyError": "Copy error details",
+      "brokenJsx": "This design has a syntax error, likely an incomplete early save. Regenerate or edit to fix.",
+      "undefinedRef": "The design references an undefined variable or component. Likely a mid-run abort — try regenerating."
+    },
+    "ready": "Preview",
+    "noDesign": "No design yet",
+    "clickToComment": "Click any element in the preview to leave an inline comment.",
+    "commentMode": "Comment mode",
+    "commentModeHint": "Click any element to comment",
+    "runtimeError": "Preview runtime error",
+    "dismissErrors": "Dismiss preview errors",
+    "zoom": "Zoom"
+  },
+  "tweaks": {
+    "title": "Tweaks",
+    "openLabel": "Open tweaks panel",
+    "close": "Close",
+    "reset": "Reset to defaults",
+    "pickColor": "Pick color",
+    "swatchAria": "{{key}} color",
+    "emptyTitle": "No tweakable tokens",
+    "emptyHint": "The agent hasn't declared an EDITMODE block yet. Future generations will expose design tokens here."
+  },
+  "chat": {
+    "placeholder": "무엇을 디자인할지 설명하세요…",
+    "sendShortcut": "보내기 (Enter)",
+    "emptyHint": "스타터 프롬프트나 직접 작성한 아이디어로 시작하세요.",
+    "sendAction": "보내기",
+    "sendAnywhere": "어디서나 보내기",
+    "send": "프롬프트 보내기",
+    "stop": "생성 중지",
+    "placeholderRich": "디자인을 설명하세요… 예: '핀테크 스타트업을 위한 피치덱'"
+  },
+  "sidebar": {
+    "localContext": "Local context",
+    "attachLocalFiles": "Attach local files",
+    "linkDesignSystemRepo": "Link design system repo",
+    "refreshDesignSystemRepo": "Refresh design system repo",
+    "referenceUrl": "Reference URL",
+    "attachedFiles": "Attached files",
+    "removeFile": "Remove {{name}}",
+    "activeDesignSystem": "Active design system",
+    "clear": "Clear",
+    "designSystemHint": "Link a repo to extract colors, typography, spacing, and other styling cues for future generations.",
+    "startHint": "Start with a brief, then add files, a URL, or a local repo to ground the result.",
+    "empty": {
+      "title": "What should we design?",
+      "subtitle": "Describe your idea below — or start from one of these.",
+      "eyebrow": "Try"
+    },
+    "ariaLabel": "Chat pane",
+    "noDesign": "No design",
+    "newChat": "New chat",
+    "collapse": "Collapse sidebar",
+    "expand": "Expand sidebar",
+    "chat": {
+      "youLabel": "You",
+      "claudeLabel": "Claude",
+      "noModel": "No model selected",
+      "addMenu": {
+        "trigger": "Add context"
+      },
+      "thinking": "Thinking",
+      "streamingLabel": "Assistant is typing",
+      "tokensLine": "~{{count}} tokens",
+      "artifactDelivered": "delivered",
+      "artifactDefaultLabel": "design.html",
+      "tool": {
+        "done": "Done"
+      },
+      "working": {
+        "title": "Working"
+      }
+    },
+    "comments": {
+      "title": "Comment mode",
+      "body": "Inline comments on the canvas arrive in v0.2.1. You'll be able to click any element in the preview to leave a note or an edit instruction."
+    }
+  },
+  "settings": {
+    "title": "설정",
+    "tabs": {
+      "models": "모델",
+      "images": "이미지 API",
+      "appearance": "모양",
+      "storage": "저장소",
+      "diagnostics": "진단",
+      "advanced": "고급"
+    },
+    "imageGen": {
+      "tabTitle": "이미지 생성",
+      "tabHint": "디자인 에이전트가 hero, poster, background bitmap 생성을 위해 이미지 모델(예: gpt-image-2)을 호출하게 합니다. 인증 정보는 로컬에만 남습니다.",
+      "title": "이미지 생성 assist",
+      "hint": "켜면 agent가 실행 중 generate_image_asset을 호출할 수 있습니다.",
+      "enabled": "이미지 생성 assist 켜기",
+      "provider": "Provider",
+      "credentials": "인증 정보",
+      "inherit": "모델 provider에서 상속",
+      "customKey": "별도 키 사용",
+      "keyPlaceholder": "{{mask}} 유지하려면 비워 두세요",
+      "newKeyPlaceholder": "API 키 붙여넣기",
+      "model": "이미지 모델",
+      "baseUrl": "Base URL",
+      "quality": "품질",
+      "size": "크기",
+      "status": {
+        "ready": "준비됨",
+        "needsKey": "API 키 필요",
+        "disabled": "꺼짐"
+      },
+      "toast": {
+        "loadFailed": "이미지 생성 설정을 불러오지 못했습니다",
+        "saved": "이미지 생성 설정 저장됨",
+        "saveFailed": "이미지 생성 설정 저장 실패"
+      }
+    },
+    "shell": {
+      "back": "Workspace",
+      "backAria": "Workspace로 돌아가기"
+    },
+    "common": {
+      "loading": "불러오는 중…",
+      "cancel": "취소",
+      "copy": "복사",
+      "copied": "복사됨!",
+      "open": "열기",
+      "unknownError": "알 수 없는 오류"
+    },
+    "providers": {
+      "sectionTitle": "API Providers",
+      "chatgptLogin": {
+        "title": "Sign in with ChatGPT subscription",
+        "description": "Use your ChatGPT Plus / Pro / Team plan quota to call Codex models (gpt-5.3-codex and friends) — no API key needed.",
+        "signIn": "Sign in with ChatGPT",
+        "inProgress": "Browser opened. Complete the authorization and we'll return automatically…",
+        "loggedInBadge": "Signed in with ChatGPT",
+        "logout": "Sign out",
+        "confirmLogout": "Sign out of ChatGPT subscription?",
+        "loginFailedTitle": "ChatGPT sign-in failed",
+        "logoutFailedTitle": "ChatGPT sign-out failed",
+        "statusFailedTitle": "ChatGPT status check failed",
+        "unknownError": "Unknown error",
+        "unsupportedCountryRegion": "ChatGPT subscription login is not available for this account, country, region, or territory."
+      },
+      "addProvider": "Provider 추가",
+      "addCustom": "Custom 추가",
+      "empty": "아직 설정된 provider가 없습니다. 생성을 시작하려면 하나를 추가하세요.",
+      "active": "활성",
+      "activeNotInList": "(활성, provider 목록에 없음)",
+      "decryptionFailed": "복호화 실패",
+      "setActive": "활성으로 설정",
+      "reEnterKey": "키 다시 입력",
+      "missingKey": "키 없음",
+      "addKey": "키 추가",
+      "confirm": "확인",
+      "delete": "삭제",
+      "edit": "편집",
+      "testConnection": "연결 테스트",
+      "moreActions": "더 보기",
+      "editModel": "모델 변경",
+      "deleteAria": "{{label}} provider 삭제",
+      "primary": "Primary",
+      "fast": "Fast",
+      "custom": {
+        "title": "Custom endpoint 추가",
+        "editTitle": "Provider 편집",
+        "wire": "Wire protocol",
+        "wires": {
+          "openai-chat": "OpenAI Chat",
+          "openai-responses": "OpenAI Responses",
+          "anthropic": "Anthropic Messages"
+        },
+        "name": "Label",
+        "baseUrl": "Base URL",
+        "apiKey": "API Key",
+        "apiKeyEditPlaceholder": "{{mask}} 유지하려면 비워 두세요",
+        "defaultModel": "기본 모델",
+        "compatibilityHintTitle": "호환성 안내",
+        "compatibilityHintBody": "일부 coding plan, relay service, OpenAI-compatible gateway는 Claude Code, openclaw, Hermes 같은 특정 client만 허용할 수 있습니다. API 형태가 호환되어도 Open CoDesign은 앱 allowlist에 의해 차단될 수 있습니다.",
+        "switchToManual": "직접 입력",
+        "switchToDropdown": "목록에서 선택",
+        "discoveringModels": "모델 검색 중...",
+        "discoveredModels": "{{count}}개 모델 발견",
+        "discoveryFailed": "모델 자동 검색 실패",
+        "test": "연결 테스트",
+        "testOk": "OK — {{count}}개 모델 사용 가능",
+        "save": "저장하고 계속",
+        "saveEdit": "변경 저장"
+      },
+      "import": {
+        "action": "가져오기",
+        "dismiss": "닫기",
+        "codexFound": "Codex config 감지됨 — {{count}}개 provider를 가져올까요?",
+        "claudeCodeOAuthTitle": "Claude Code subscription 감지됨",
+        "claudeCodeOAuthBody": "Pro/Max subscription은 Claude Code client 자체를 통해서만 사용할 수 있습니다. Third-party app은 subscription quota를 재사용할 수 없습니다. 여기서 사용하려면 Anthropic Console에서 API 키를 생성하세요(같은 계정, token 단위 과금).",
+        "claudeCodeOAuthCtaConsole": "Anthropic Console에서 API 키 받기 ↗",
+        "claudeCodeHasKeyBody": "{{source}}에서 {{baseUrl}} gateway용 키를 찾았습니다 — 가져오기를 눌러 사용하세요.",
+        "claudeCodeHasKeySourceSettings": "~/.claude/settings.json",
+        "claudeCodeHasKeySourceEnv": "shell env",
+        "claudeCodeLocalProxyBody": "{{baseUrl}}의 local proxy처럼 보입니다. Claude Code Proxy 같은 도구를 통해 OAuth subscription을 재사용하는 일반적인 설정입니다.",
+        "claudeCodeLocalProxyAction": "proxy를 쓰기 위해 키 붙여넣기",
+        "claudeCodeRemoteGatewayBody": "{{baseUrl}} gateway에 Claude Code config의 API 키가 없습니다. gateway를 가져온 뒤 설정에서 키를 붙여넣으세요.",
+        "claudeCodeRemoteGatewayAction": "gateway를 쓰기 위해 키 붙여넣기",
+        "oauthErrorToast": "Claude Code subscription은 third-party app과 공유할 수 없습니다. Anthropic Console에서 API 키를 생성하세요.",
+        "oauthErrorToastCta": "API 키 받기 ↗",
+        "codexDone": "Codex provider 가져옴",
+        "geminiFound": "Gemini CLI 키 감지됨 — 가져올까요?",
+        "geminiNoKey": "Gemini CLI config를 찾았지만 ~/.gemini/.env 또는 ~/.env에 API 키가 없습니다. Gemini를 쓰려면 키를 직접 붙여넣으세요.",
+        "geminiBlocked": "Google Vertex AI project는 아직 지원하지 않습니다 — Gemini를 쓰려면 Gemini Developer API 키(AIzaSy…로 시작)를 붙여넣으세요.",
+        "geminiDone": "Gemini provider 가져옴",
+        "opencodeBlocked": "OpenCode config를 찾았지만 가져올 수 있는 항목이 없습니다. 위 warning을 확인하고 auth.json을 수정한 뒤 다시 시도하세요.",
+        "opencodeFound": "OpenCode 감지됨 — {{count}}개 provider({{providers}})를 가져올까요?",
+        "opencodeDone": "OpenCode provider 가져옴",
+        "claudeCodeImportedActivated": "Claude Code를 가져오고 활성 모델 provider로 설정했습니다",
+        "claudeCodeOpenSettings": "설정 열기",
+        "claudeCodeIHaveKey": "API 키가 있습니다 — 붙여넣기",
+        "claudeCodeShellEnvHint": "또는 shell에서 ANTHROPIC_API_KEY를 export하고 Terminal에서 다시 실행하세요 — 자동으로 감지합니다.",
+        "claudeCodeParseErrorTitle": "Claude Code config 형식이 잘못되었습니다",
+        "claudeCodeParseErrorBody": "~/.claude/settings.json을 parse할 수 없습니다: {{reason}}.",
+        "claudeCodeParseErrorReasonNotObject": "최상위 값이 JSON object가 아닙니다",
+        "claudeCodeWarningsMore": "+{{count}}개 더",
+        "claudeCodeParseErrorCopyPath": "파일 경로 복사",
+        "claudeCodeParseErrorPathCopied": "경로가 clipboard에 복사되었습니다",
+        "claudeCodeAnthropicPresetName": "Anthropic",
+        "claudeCodeLocalProxyPresetName": "Claude Code Proxy (local)",
+        "claudeCodeRemoteGatewayPresetName": "Claude Code Gateway",
+        "failed": "가져오기 실패",
+        "codexMenu": "Codex에서 가져오기",
+        "codexMenuDesc": "~/.codex/config.toml 읽기",
+        "claudeCodeMenu": "Claude Code에서 가져오기",
+        "claudeCodeMenuDesc": "로그인된 Claude Code session 읽기",
+        "ollamaMenu": "Ollama (local)",
+        "ollamaMenuDesc": "localhost:11434 local provider 추가",
+        "ollamaDone": "Ollama provider 추가됨",
+        "customMenu": "Custom provider",
+        "customMenuDesc": "API 키와 URL을 직접 입력",
+        "alreadyImported": "이미 가져옴"
+      },
+      "modal": {
+        "title": "Add provider",
+        "provider": "Provider",
+        "apiKey": "API Key",
+        "getKey": "Get key ↗",
+        "apiKeyPlaceholder": "sk-...",
+        "validate": "Validate",
+        "validating": "Validating…",
+        "valid": "Valid",
+        "baseUrl": "Base URL",
+        "baseUrlOptional": "(optional)",
+        "baseUrlPlaceholder": "https://your-proxy.example.com",
+        "primaryModel": "Primary model",
+        "fastModel": "Fast model",
+        "save": "Save provider"
+      },
+      "toast": {
+        "loadFailed": "Failed to load providers",
+        "removed": "Provider removed",
+        "deleteFailed": "Delete failed",
+        "activateFailed": "Cannot activate provider",
+        "missingModel": "Provider has no default model — add one first.",
+        "switchedTo": "Switched to {{label}}",
+        "switchFailed": "Switch failed",
+        "saved": "Provider saved",
+        "saveFailed": "Failed to save provider",
+        "modelSaveFailed": "Failed to save model selection",
+        "reasoningSaved": "Reasoning depth saved",
+        "reasoningSaveFailed": "Failed to save reasoning depth",
+        "connectionOk": "Connection OK",
+        "connectionFailed": "Connection failed"
+      },
+      "cliProxyApi": {
+        "presetName": "CLIProxyAPI",
+        "presetDescription": "Claude/Codex/Gemini OAuth subscription을 감싸는 local proxy",
+        "apiKeyOptional": "CPA config.yaml에 `api-keys`를 설정한 경우에만 API 키가 필요합니다",
+        "thinkingHint": "팁: 모델 이름에 `(high)` / `(xhigh)` / `(8192)`를 붙여 thinking budget을 제어하세요"
+      },
+      "cpaDetection": {
+        "title": "이 컴퓨터에서 CLIProxyAPI가 감지되었습니다",
+        "body": "가져오면 OAuth 인증된 Claude / Codex / Gemini 계정을 provider로 사용할 수 있습니다.",
+        "importAction": "가져오기",
+        "dismissAction": "닫기"
+      },
+      "reasoning": {
+        "label": "Reasoning depth",
+        "default": "기본값 (자동)",
+        "minimal": "최소",
+        "low": "낮음",
+        "medium": "보통",
+        "high": "높음",
+        "xhigh": "매우 높음"
+      }
+    },
+    "appearance": {
+      "themeTitle": "테마",
+      "themeHint": "선택한 값은 재시작 후에도 유지됩니다.",
+      "lightLabel": "라이트",
+      "lightDesc": "따뜻한 베이지, 부드러운 그림자",
+      "darkLabel": "다크",
+      "darkDesc": "깊은 뉴트럴, 낮은 눈부심",
+      "languageLabel": "언어",
+      "languageHint": "언어 변경은 즉시 적용됩니다.",
+      "languageLoadFailed": "언어를 불러오지 못했습니다",
+      "langEn": "English",
+      "langZhCN": "中文 (简体)",
+      "langPtBR": "Português (BR)",
+      "langKo": "한국어"
+    },
+    "language": {
+      "label": "언어",
+      "system": "시스템 기본값"
+    },
+    "theme": {
+      "label": "테마",
+      "light": "라이트",
+      "dark": "다크",
+      "system": "시스템"
+    },
+    "storage": {
+      "pathsTitle": "경로",
+      "config": "설정",
+      "logs": "로그",
+      "data": "데이터 디렉터리",
+      "change": "변경",
+      "restartHint": "open-codesign이 config, logs, local design data를 저장할 위치를 선택하세요. 변경 사항은 영구 저장되며 앱 재시작 후 적용됩니다.",
+      "locationSavedToast": "저장 위치가 저장되었습니다. 적용하려면 앱을 재시작하세요.",
+      "locationSaveFailed": "저장 위치를 저장할 수 없습니다",
+      "onboardingTitle": "Onboarding",
+      "onboardingHint": "다음 실행 때 onboarding wizard가 다시 나오도록 setup flag를 지웁니다.",
+      "resetConfirm": "저장된 키가 제거됩니다. 계속할까요?",
+      "reset": "초기화",
+      "resetButton": "Onboarding 초기화",
+      "pathsLoadFailed": "앱 경로를 불러오지 못했습니다",
+      "openFolderFailed": "폴더를 열 수 없습니다",
+      "onboardingResetToast": "Onboarding이 초기화되었습니다. 설정을 다시 실행하려면 앱을 재시작하세요.",
+      "diagnosticsTitle": "진단",
+      "diagnosticsHint": "로그 폴더를 열어 로그를 확인하거나 bug report용 redacted bundle을 내보내세요.",
+      "openLogFolder": "로그 폴더 열기",
+      "exportDiagnostics": "진단 내보내기",
+      "diagnosticsExported": "{{path}}로 내보냈습니다",
+      "diagnosticsExportFailed": "진단을 내보낼 수 없습니다"
+    },
+    "diagnostics": {
+      "title": "진단",
+      "description": "최근 오류를 확인하세요. 전체 context를 첨부해 bug를 report할 수 있습니다.",
+      "openLogFolder": "로그 폴더 열기",
+      "exportBundle": "진단 bundle 내보내기",
+      "showTransient": "재시도 후 성공한 transient 오류 표시",
+      "empty": "아직 기록된 진단 event가 없습니다.",
+      "dbUnavailable": "진단 저장소를 사용할 수 없습니다. 오류는 main.log에 계속 기록되지만 앱 재시작 전까지 여기에 표시되지 않습니다. 디스크 공간과 권한을 확인하세요.",
+      "inMemoryFallback": "인메모리 기록을 표시 중입니다 — DB를 사용할 수 없어 재시작 후 유지되지 않습니다.",
+      "report": "보고",
+      "column": {
+        "time": "시간",
+        "code": "코드",
+        "scope": "범위",
+        "runId": "Run id",
+        "message": "메시지"
+      }
+    },
+    "advanced": {
+      "updateChannel": "업데이트 채널",
+      "updateChannelHint": "Stable: 검증된 릴리스. Beta: 조기 접근(버그가 있을 수 있음).",
+      "stable": "Stable",
+      "beta": "Beta",
+      "checkForUpdatesOnStartup": "시작 시 업데이트 확인",
+      "checkForUpdatesOnStartupHint": "앱 실행 30초 후 새 릴리스를 자동 확인합니다.",
+      "timeout": "생성 timeout",
+      "timeoutHint": "생성 요청을 중단하기 전까지 기다릴 초 단위 시간입니다.",
+      "timeoutSeconds": "{{value}}초",
+      "devtools": "Developer tools",
+      "devtoolsHint": "renderer용 Chromium DevTools panel을 엽니다.",
+      "toggleDevtools": "DevTools 토글",
+      "prefsLoadFailed": "환경설정을 불러오지 못했습니다",
+      "prefsSaveFailed": "환경설정을 저장하지 못했습니다",
+      "devtoolsFailed": "Could not toggle DevTools"
+    }
+  },
+  "updates": {
+    "bannerAvailable": "{{appName}} {{version}} is available.",
+    "bannerViewRelease": "View release",
+    "bannerDismissAria": "Dismiss update banner"
+  },
+  "onboarding": {
+    "stepperLabel": "{{total}}단계 중 {{current}}단계",
+    "welcome": {
+      "title": "어떤 모델로든 디자인하세요.",
+      "subtitle": "디자인 생성에 사용할 방식을 선택하세요. 나중에 설정에서 바꿀 수 있습니다.",
+      "tryFree": "무료로 시작하기",
+      "tryFreeSubtitle": "OpenRouter 무료 티어 — OpenRouter 키를 붙여넣은 뒤 openrouter/free로 시작하거나 원하는 모델 ID를 입력하세요.",
+      "useKey": "내 API 키 사용",
+      "useKeySubtitle": "Anthropic, OpenAI, OpenRouter를 지원합니다. 키 접두사로 자동 감지합니다.",
+      "useOllama": "로컬 모델 사용 (Ollama)",
+      "useOllamaSubtitle": "API 비용 없이 100% 로컬에서 실행합니다. Ollama 설치 및 실행이 필요합니다.",
+      "useOllamaDetected": "Ollama 감지됨 — 로컬에서 {{count}}개 모델 사용 가능.",
+      "useOllamaNotRunning": "localhost:11434에서 Ollama를 찾지 못했습니다. 설치하거나 실행한 뒤 다시 시도하세요.",
+      "useOllamaProbing": "로컬 Ollama 인스턴스를 확인하는 중...",
+      "useOllamaRetry": "다시 확인",
+      "useOllamaInstall": "Ollama 설치 ↗",
+      "whereToGetKey": "키를 받는 방법"
+    },
+    "paste": {
+      "title": "API 키 붙여넣기",
+      "description": "provider를 자동 감지합니다. 계속하기 전에 테스트를 눌러 키와 엔드포인트를 확인하세요. 키는 로컬 ~/.config/open-codesign/config.toml 파일(0600 권한)에 저장됩니다.",
+      "placeholder": "sk-…",
+      "recognized": "감지된 provider: {{provider}}",
+      "connected_one": "{{count}}개 모델 연결됨",
+      "connected_other": "{{count}}개 모델 연결됨",
+      "howToGet": "키를 받는 방법",
+      "getKey": "키 받기",
+      "statusIdle": "위에 키를 붙여넣으세요 — 접두사로 provider를 자동 감지합니다.",
+      "statusDetecting": "provider 감지 중...",
+      "statusValidating": "인식됨: {{provider}} — 검증 중...",
+      "statusDetected": "인식됨: {{provider}} — 테스트를 눌러 확인하세요",
+      "statusOk": "인식됨: {{provider}} — 연결됨 ({{count}}개 모델)",
+      "errors": {
+        "401": "API 키가 유효하지 않거나 권한이 없습니다. provider 대시보드에서 확인하세요.",
+        "402": "계정 크레딧이 없습니다. 충전 후 다시 시도하세요.",
+        "429": "요청 한도에 도달했습니다. 잠시 후 다시 시도하세요.",
+        "network": "Base URL에 연결할 수 없습니다. 도메인/포트/네트워크를 확인하세요.",
+        "unsupported": "인식할 수 없는 키 접두사입니다. 지원: sk-ant- (Anthropic), sk- (OpenAI), sk-or- (OpenRouter).",
+        "notSupportedProvider": "{{provider}}는 v0.1에서 지원하지 않습니다. Anthropic, OpenAI, OpenRouter를 사용하세요.",
+        "rendererDisconnected": "renderer가 main process에 연결되어 있지 않습니다.",
+        "detectIpc": "provider 감지 실패(main process 연결 불가): {{message}}. 앱을 재시작한 뒤 다시 시도하세요.",
+        "detectNetwork": "provider 감지 실패(네트워크 오류): {{message}}. 연결을 확인하고 다시 시도하세요."
+      },
+      "advanced": {
+        "toggle": "고급 — custom base URL (proxy / relay)",
+        "title": "고급 — custom base URL",
+        "description": "provider의 기본 endpoint를 덮어씁니다. relay 서비스나 self-hosted proxy에 유용합니다. 공식 endpoint를 쓰려면 비워 두세요."
+      },
+      "preset": {
+        "label": "Preset",
+        "placeholder": "-- preset 선택 --",
+        "hint": "무엇을 고를지 모르겠다면 공식 endpoint는 OpenAI Official을, relay는 이름에 맞는 항목을 선택하세요.",
+        "custom": "Custom"
+      },
+      "apiKey": {
+        "label": "API 키"
+      },
+      "baseUrl": {
+        "label": "Base URL"
+      },
+      "connectionTest": {
+        "button": "테스트",
+        "testing": "테스트 중...",
+        "ok": "연결됨",
+        "okVerified": "연결됨 — 키와 endpoint 확인 완료",
+        "idleHint": "계속하기 전에 테스트를 실행해 키와 연결을 확인하세요.",
+        "runFirst": "먼저 테스트를 실행해 연결을 확인하세요",
+        "errors": {
+          "401": "API 키가 유효하지 않거나 권한이 없습니다.",
+          "404": "Base URL path가 잘못되었습니다. /v1 suffix를 추가해 보세요. 예: https://your-host/v1",
+          "ECONNREFUSED": "Base URL에 연결할 수 없습니다. 도메인/포트/네트워크를 확인하세요.",
+          "NETWORK": "네트워크 오류입니다. 연결을 확인하세요.",
+          "PARSE": "예상과 다른 응답입니다. ~/Library/Logs/open-codesign/main.log 로그를 확인하세요.",
+          "IPC_BAD_INPUT": "연결 테스트에 잘못된 입력이 전달되었습니다. provider / API 키 / Base URL 필드를 확인하세요."
+        }
+      },
+      "back": "뒤로",
+      "continue": "계속"
+    },
+    "choose": {
+      "title": "기본 모델 선택",
+      "description": "추천값으로 시작하거나 provider별 모델 ID를 직접 입력하세요. 나중에 디자인마다 전환할 수 있습니다.",
+      "primary": "주 디자인 모델",
+      "fast": "빠른 완성 모델",
+      "primaryHint": "전체 디자인 생성에 사용됩니다.",
+      "fastHint": "빠른 수정과 inline tweak에 사용됩니다.",
+      "primaryHintFree": "무료 경로는 openrouter/free로 시작하지만 원하는 OpenRouter 모델 ID를 입력할 수 있습니다.",
+      "fastHintFree": "최저 비용을 원하면 openrouter/free를 유지하거나 더 빠른 custom 선택지로 바꾸세요.",
+      "customBaseUrl": "Custom base URL: {{url}}",
+      "costNote": "예상 비용은 provider, 선택 모델, 프롬프트 길이에 따라 달라집니다.",
+      "costNoteFree": "OpenRouter 무료 routing availability는 바뀔 수 있습니다. 무료 route가 없으면 다른 모델 ID를 입력하세요.",
+      "estimatedCost": "예상 비용: {{amount}}",
+      "back": "뒤로",
+      "saving": "저장 중...",
+      "finish": "완료"
+    }
+  },
+  "topbar": {
+    "modelSwitcher": {
+      "fromProvider": "Provider",
+      "searchPlaceholder": "Search models…",
+      "searchAriaLabel": "Filter models by name",
+      "clearSearch": "Clear search",
+      "noMatches": "No models match \"{{query}}\""
+    },
+    "status": {
+      "connected": "Connected",
+      "untested": "Not tested",
+      "error": "Connection error",
+      "noProvider": "No provider configured",
+      "lastTested": "Last tested {{time}}",
+      "tooltip": {
+        "click": "Click to re-test"
+      }
+    },
+    "openMyDesigns": "All designs",
+    "hubLabel": "My designs",
+    "settingsLabel": "Settings",
+    "closeSettings": "Close settings",
+    "unreadErrors": "{{count}} unread error"
+  },
+  "theme": {
+    "toggleAria": "Toggle theme",
+    "switchToLight": "Switch to light",
+    "switchToDark": "Switch to dark"
+  },
+  "export": {
+    "button": "Export",
+    "items": {
+      "html": {
+        "label": "HTML",
+        "hint": "Single self-contained .html file"
+      },
+      "pdf": {
+        "label": "PDF",
+        "hint": "Rendered via your installed Chrome"
+      },
+      "pptx": {
+        "label": "PPTX",
+        "hint": "Editable slides; one per <section>"
+      },
+      "zip": {
+        "label": "ZIP bundle",
+        "hint": "index.html + assets + README.md"
+      },
+      "markdown": {
+        "label": "Markdown",
+        "hint": "Plain .md with YAML frontmatter"
+      }
+    }
+  },
+  "notifications": {
+    "designSystemLinked": "Design system linked",
+    "designSystemScanFailed": "Design system scan failed",
+    "designSystemCleared": "Design system cleared",
+    "clearDesignSystemFailed": "Unable to clear design system",
+    "generationFailed": "Generation failed",
+    "generationFailedApplyFix": "Apply fix",
+    "generationFailedBaseUrlUpdated": "Base URL updated. Try the request again.",
+    "generationFailedFixUnavailable": "Auto-fix unavailable",
+    "generationFailedFixUnavailableDescription": "This app version can't apply the fix automatically. Please edit the Base URL manually in Settings.",
+    "generationFailedFixApplyFailed": "Could not apply fix",
+    "cancellationFailed": "Cancellation failed",
+    "inlineCommentFailed": "Inline comment failed",
+    "commentNeedsSnapshot": "Generate a design first before leaving a comment",
+    "commentCreateFailed": "Could not save the comment",
+    "commentUpdateFailed": "Could not update the comment",
+    "commentDeleteFailed": "Could not delete the comment",
+    "noDesignToExport": "No design to export yet.",
+    "exportedTo": "Exported to {{path}}"
+  },
+  "inlineComment": {
+    "title": "Comment on",
+    "closeComposer": "Close inline comment composer",
+    "description": "Clicked elements stay selected in the canvas. Describe the visual or content change you want, and open-codesign will rewrite the artifact around that target.",
+    "placeholder": "Make this section more compact, sharpen the headline, and align it with the linked design system…",
+    "applying": "Applying…",
+    "applyChange": "Apply change"
+  },
+  "commentBubble": {
+    "title": "Comment on",
+    "close": "Close comment bubble",
+    "placeholder": "Describe the change, or leave a note for yourself…",
+    "saveNote": "Comment",
+    "sendToClaude": "Send to Claude",
+    "saving": "Saving…",
+    "sending": "Sending…",
+    "scope": {
+      "legend": "Scope of this comment",
+      "element": "This element only",
+      "global": "Whole design"
+    }
+  },
+  "pinOverlay": {
+    "note": "Note {{n}}",
+    "edit": "Edit {{n}}"
+  },
+  "commentChip": {
+    "dismiss": "Dismiss pending edit",
+    "empty": "No pending edits",
+    "apply": "Apply ({{count}})",
+    "applyAll": "Apply all pending edits"
+  },
+  "commentsTab": {
+    "empty": "Click any element in the preview while comment mode is on to leave a note or an edit instruction.",
+    "pendingEdits": "Pending edits",
+    "notes": "Notes",
+    "appliedEdits": "Applied edits",
+    "delete": "Delete comment",
+    "atSnapshot": "@ snapshot {{n}}"
+  },
+  "comments": {
+    "panel": {
+      "title": "Comments",
+      "close": "Close comments panel",
+      "empty": "No comments yet. Click any element on the canvas to leave one.",
+      "delete": "Delete comment",
+      "untitled": "(no text)",
+      "status": {
+        "pending": "Pending",
+        "applied": "Applied"
+      },
+      "scope": {
+        "element": "Element",
+        "global": "Global",
+        "tooltip": "Whether the change is scoped to this element or the whole design"
+      }
+    },
+    "quickActions": {
+      "label": "Quick actions",
+      "spacing": {
+        "more": "+ Spacing",
+        "less": "− Spacing"
+      },
+      "contrast": {
+        "more": "+ Contrast",
+        "less": "− Contrast"
+      },
+      "font": {
+        "bigger": "+ Font",
+        "smaller": "− Font"
+      },
+      "radius": {
+        "more": "+ Radius",
+        "less": "− Radius"
+      },
+      "text": {
+        "spacing-more": "increase spacing on this element",
+        "spacing-less": "tighten spacing on this element",
+        "contrast-more": "increase color contrast",
+        "contrast-less": "soften the color contrast",
+        "font-bigger": "increase font size on this element",
+        "font-smaller": "decrease font size on this element",
+        "radius-more": "make corners more rounded",
+        "radius-less": "make corners sharper"
+      }
+    }
+  },
+  "disabledReason": {
+    "typePromptToSend": "Type a prompt to start",
+    "generatingInProgress": "Generation in progress",
+    "typeDraftToApply": "Type a comment to apply",
+    "noDesignToExport": "Generate a design first",
+    "enterApiKeyToValidate": "Enter an API key to validate",
+    "validateKeyFirst": "Validate the key first",
+    "enterKeyToTest": "Paste an API key to test the connection",
+    "detectingProvider": "Detecting provider — please wait",
+    "unsupportedKeyForTest": "Unsupported key format — can't test this key",
+    "providerDetectIpcForTest": "Provider detection failed (IPC) — can't test this key",
+    "providerDetectNetworkForTest": "Provider detection failed (network) — can't test this key",
+    "testingConnection": "Testing connection…",
+    "validateKeyToContinue": "Validate your API key to continue",
+    "savingInProgress": "Saving in progress",
+    "enterBothModels": "Both model fields are required",
+    "ollamaComingSoon": "Ollama integration is coming in v0.2"
+  },
+  "errorBoundary": {
+    "scopeFallback": "this view",
+    "crashedSuffix": "{{scope}} crashed",
+    "body": "The rest of the app is still running. Reload this view, or copy the stack to file a bug.",
+    "noStack": "(no stack)",
+    "copyStack": "Copy stack",
+    "reportOnGitHub": "Report on GitHub",
+    "reportViaDiagnostics": "Report via Diagnostics",
+    "reload": "Reload"
+  },
+  "errors": {
+    "generic": "Something went wrong.",
+    "providerAuthMissing": "No API key configured. Open Settings to add one.",
+    "providerError": "Provider error: {{message}}",
+    "ipcBadInput": "Invalid input passed to the main process.",
+    "exporterNotReady": "Exporter is still loading. Try again in a moment.",
+    "rendererDisconnected": "Renderer is not connected to the main process.",
+    "onboardingIncomplete": "Onboarding is not complete.",
+    "providerMissingKey": "The active provider \"{{provider}}\" has no API key. Open Settings to add one.",
+    "modelListFailed": "Could not load model list.",
+    "unknown": "Unknown error",
+    "localePersistFailed": "Failed to save language preference"
+  },
+  "projects": {
+    "untitled": "Untitled design",
+    "untitledNumbered": "Untitled design {{n}}",
+    "duplicateNameTemplate": "{{name}} copy",
+    "switcher": {
+      "currentLabel": "Current design",
+      "menuLabel": "Switch design",
+      "newDesign": "New design",
+      "renameCurrent": "Rename",
+      "viewAll": "View all designs…",
+      "recent": "Recent",
+      "noOthers": "No other designs yet"
+    },
+    "view": {
+      "title": "Designs",
+      "subtitle": "All your saved designs. Switch, rename, duplicate, or delete.",
+      "newDesign": "New design",
+      "search": "Search designs",
+      "empty": "No designs yet — create your first one to get started.",
+      "noMatches": "No designs match \"{{query}}\".",
+      "open": "Open",
+      "rename": "Rename",
+      "duplicate": "Duplicate",
+      "delete": "Delete",
+      "edited": "Edited {{when}}",
+      "snapshotCount_one": "{{count}} version",
+      "snapshotCount_other": "{{count}} versions",
+      "close": "Close designs view"
+    },
+    "rename": {
+      "title": "Rename design",
+      "label": "Design name",
+      "placeholder": "e.g. Landing page hero",
+      "save": "Save",
+      "cancel": "Cancel"
+    },
+    "delete": {
+      "title": "Delete this design?",
+      "body": "\"{{name}}\" and all of its history will be removed from the designs list. This cannot be undone in v0.",
+      "confirm": "Delete design",
+      "cancel": "Keep it"
+    },
+    "time": {
+      "justNow": "just now",
+      "minutesAgo_one": "{{count}} minute ago",
+      "minutesAgo_other": "{{count}} minutes ago",
+      "hoursAgo_one": "{{count}} hour ago",
+      "hoursAgo_other": "{{count}} hours ago",
+      "yesterday": "yesterday",
+      "daysAgo_one": "{{count}} day ago",
+      "daysAgo_other": "{{count}} days ago"
+    },
+    "notifications": {
+      "createFailed": "Could not create a new design",
+      "switchFailed": "Could not switch design",
+      "switchBlockedGenerating": "Wait for generation to finish before switching",
+      "busyGenerating": "Wait for the current generation to finish, then try again",
+      "renameFailed": "Could not rename the design",
+      "duplicated": "Duplicated as \"{{name}}\"",
+      "duplicateFailed": "Could not duplicate the design",
+      "deleted": "Design moved out of the active list",
+      "deleteFailed": "Could not delete the design",
+      "deleteBlockedGenerating": "Wait for generation to finish before deleting",
+      "saveFailed": "Could not save the latest changes",
+      "snapshotSkipped": "Incomplete output kept unsaved",
+      "snapshotSkippedBody": "The agent's JSX is truncated (missing ReactDOM.createRoot or unbalanced braces). Previous good version preserved. Send the prompt again to retry.",
+      "loadFailed": "Could not load your designs"
+    }
+  },
+  "diagnostics": {
+    "title": "Connection failed",
+    "status": "Status: {{status}}",
+    "attempted": "What we tried: {{url}}",
+    "mostLikelyCause": "Most likely cause:",
+    "cause": {
+      "keyInvalid": "API key invalid or revoked.",
+      "balanceEmpty": "Account balance is empty.",
+      "missingV1": "Base URL path is likely missing the /v1 suffix.",
+      "rateLimit": "Rate limit exceeded.",
+      "hostUnreachable": "Cannot reach host — check domain, port, or VPN.",
+      "timedOut": "Request timed out — check firewall or VPN.",
+      "corsError": "CORS error (should not happen in main process). This is a bug.",
+      "sslError": "SSL / certificate error (self-signed cert on relay?).",
+      "gatewayIncompatible": "The gateway accepted the connection but does not implement this provider's API. Try switching wire (e.g. openai-chat).",
+      "openaiResponsesMisconfigured": "The endpoint rejected the request shape. The wire may be wrong — try switching to openai-chat.",
+      "relayStreamingBug": "The gateway may mishandle OpenAI Responses API SSE events (older sub2api / claude2api / anyrouter builds cut the stream short).",
+      "serverError": "Upstream server error. May be transient — try again.",
+      "unknown": "Unknown error — check the full log for details."
+    },
+    "fix": {
+      "updateKey": "Update key",
+      "addCredits": "Add credits →",
+      "addCreditsGeneric": "Check your provider's billing page",
+      "addV1": "Add /v1",
+      "waitAndRetry": "Wait and retry",
+      "checkNetwork": "Check network / VPN",
+      "checkVpn": "Check VPN / firewall",
+      "reportBug": "Report this bug",
+      "disableTls": "Disable TLS verify",
+      "switchWire": "Switch wire in Settings",
+      "relayStreamingBug": "Upgrade the relay, switch wire to openai-chat, or use api.openai.com directly"
+    },
+    "applyFix": "Apply this fix",
+    "setBaseUrlFirst": "Set a Base URL first",
+    "testAgain": "Test again",
+    "showLog": "Show full log",
+    "showLogFailed": "Failed to open logs folder",
+    "gatewayAllowlistHintTitle": "This endpoint may restrict which apps can connect",
+    "gatewayAllowlistHintBody": "Some coding plans and protocol-conversion gateways keep an app allowlist. Even when they advertise an OpenAI-compatible API, they may still reject Open CoDesign unless this app is explicitly allowed.",
+    "dismiss": "Dismiss",
+    "report": {
+      "title": "Report a bug",
+      "notes": "Steps to reproduce (optional)",
+      "include": {
+        "prompt": "Include prompt text",
+        "paths": "Include file paths",
+        "urls": "Include URLs",
+        "timeline": "Include 60 s action timeline",
+        "promptHint": "Includes the text of prompts you submitted during the session.",
+        "pathsHint": "Includes local file paths (can reveal your username / directory structure).",
+        "urlsHint": "Includes reference URLs you pasted.",
+        "timelineHint": "60-second activity log — actions only, no content."
+      },
+      "disclaimer": "Nothing is uploaded automatically. The diagnostic bundle is saved to your Downloads folder; attach it to the GitHub issue manually.",
+      "openIssue": "Open issue",
+      "copySummary": "Copy summary",
+      "cancel": "Cancel",
+      "copied": "Copied to clipboard",
+      "generating": "Creating bundle…",
+      "close": "Close",
+      "scope": "Scope",
+      "runId": "Run id",
+      "fingerprint": "Fingerprint",
+      "message": "Message",
+      "recentlyReported": "You reported this {{relative}} as issue #{{issueNumber}}.",
+      "recentlyReportedNoNumber": "You reported this {{relative}}.",
+      "viewPrevious": "View previous issue",
+      "continueAnyway": "Continue anyway",
+      "confirmOpenAnyway": "Yes, open anyway ({{seconds}}s)",
+      "error": {
+        "notesTooLong": "Notes exceed the 2000-character limit.",
+        "generic": "Couldn't open the issue. Check the log folder for details."
+      },
+      "bundleSavedTitle": "Bundle saved",
+      "bundleSavedDescription": "Saved to",
+      "revealBundle": "Show in folder",
+      "openFailedTitle": "Couldn't open the browser",
+      "openFailedCopyHint": "Copy the issue URL and open it manually.",
+      "copyIssueUrl": "Copy URL",
+      "clipboardFailedTitle": "Couldn't copy to clipboard",
+      "clipboardFailedHint": "The bundle is on disk — open it manually and paste the summary there.",
+      "preview": {
+        "code": "Code",
+        "scope": "Scope",
+        "runId": "Run id",
+        "fingerprint": "Fingerprint",
+        "message": "Message",
+        "upstream": "Upstream context",
+        "upstreamProvider": "Provider",
+        "upstreamStatus": "Status",
+        "upstreamRequestId": "Request id",
+        "upstreamRetry": "Retry",
+        "upstreamBodyHead": "Body head"
+      }
+    }
+  },
+  "demos": {
+    "meditationApp": {
+      "title": "Calm Spaces meditation app",
+      "description": "Mobile prototype with phone frame, soft palette, interactive nav.",
+      "prompt": "Design a mobile app prototype for a meditation app called Calm Spaces. Show a phone frame containing a home screen with a meditation list, play button, and progress tracker. Use serene typography, soft greens and blues, and lots of white space."
+    },
+    "caseStudy": {
+      "title": "Client case study one-pager",
+      "description": "Dark theme one-page PDF-ready layout with hero metrics.",
+      "prompt": "Create a one-page client case study. The client increased qualified leads 40% using our platform. Include before/after metrics, a CEO quote, and a logo placeholder. Clean, minimal, dark theme."
+    },
+    "pitchDeck": {
+      "title": "B2B SaaS pitch deck",
+      "description": "8-12 slides for a healthcare-targeted SaaS pitch.",
+      "prompt": "Design a pitch deck for a B2B SaaS company targeting mid-market healthcare. 8 to 10 slides covering problem, market, product, traction, team, and ask."
+    },
+    "marketingLanding": {
+      "title": "Marketing landing page",
+      "description": "Hero + features + CTA, tunable accent color.",
+      "prompt": "Design a modern marketing landing page for an AI productivity tool. Include a hero section, three feature cards, social proof, and a call to action. Use a warm neutral palette."
+    }
+  },
+  "examples": {
+    "tab": "Examples",
+    "title": "Examples",
+    "subtitle": "Hand-picked starting points. Hover to preview, then drop the prompt into the composer.",
+    "empty": "No examples match your filter.",
+    "useThisPrompt": "Use this prompt",
+    "categories": {
+      "all": "All",
+      "animation": "Animation",
+      "ui": "UI",
+      "marketing": "Marketing",
+      "document": "Document",
+      "dashboard": "Dashboard",
+      "presentation": "Presentation",
+      "email": "Email",
+      "mobile": "Mobile"
+    },
+    "thumbnailAlt": "{{title}} preview",
+    "promptUsedToast": "Prompt loaded — edit and send when ready."
+  },
+  "emptyState": {
+    "heading": "What would you like to design?",
+    "subline": "Describe your idea in the chat, or pick a template to get started.",
+    "tryThese": "Quick starts",
+    "starters": {
+      "landing": "Startup landing page",
+      "pitch": "Pitch deck slides",
+      "mobile": "Mobile onboarding",
+      "dashboard": "Analytics dashboard",
+      "email": "Welcome email",
+      "portfolio": "Photo portfolio",
+      "casestudy": "Case study page",
+      "animation": "CSS animation showcase"
+    },
+    "starterDesc": {
+      "landing": "Hero + feature cards + social proof + CTA",
+      "pitch": "Title + problem + solution, 16:9 slides",
+      "mobile": "3-screen flow inside a phone frame",
+      "dashboard": "Line chart + bars + table, dark theme",
+      "email": "600px single-column with onboarding steps",
+      "portfolio": "Masonry grid + filters + hover overlays",
+      "casestudy": "Key metrics + quote + implementation steps",
+      "animation": "Pure CSS/SVG animations, 60fps smooth"
+    }
+  },
+  "starterPrompts": {
+    "landing": "Build a landing page for an AI startup. Hero with a strong tagline, 3 feature cards, social proof section, CTA. Editorial typography, generous whitespace.",
+    "pitch": "Generate the first 3 slides of a pitch deck for a fintech startup: title slide, problem, solution. 16:9 format, navy palette, one orange accent.",
+    "mobile": "Design a 3-screen mobile app onboarding flow inside a phone frame: welcome, permissions, first action. Soft mint palette.",
+    "dashboard": "Build an analytics dashboard with: MRR trend line chart, pipeline stacked bars, top accounts table, and forecast gauge. Dark theme, teal + amber accents, plausible mock data.",
+    "email": "Design a transactional welcome email for a SaaS product. Single column, 600px wide, table-based. Logo header, greeting, 3 onboarding steps, CTA button, footer.",
+    "portfolio": "Design a photographer portfolio with masonry image grid using CSS gradient placeholders. Dark background, category filter pills, hover overlay with title and camera settings.",
+    "casestudy": "Create a one-page customer case study for a B2B fintech. Hero with client name, three large metrics with deltas, a CFO pull quote, a three-step 'How we did it' section, and a logo strip. Dark theme, serif headings, monospace numerals.",
+    "animation": "Build a showcase page with six organic CSS loading animations. Each in its own card: blob morph, leaf sway, ink drop, breathing circle, soft pulse, ribbon weave. Warm cream background, muted pastels, pure CSS/SVG only."
+  },
+  "hub": {
+    "newDesign": "New design",
+    "newDesignCardTitle": "Start a new design",
+    "newDesignCardSub": "Blank canvas · AI generated",
+    "backToHub": "All designs",
+    "tabs": {
+      "recent": "Recent",
+      "your": "Your designs",
+      "examples": "Examples",
+      "designSystems": "Design systems"
+    },
+    "recent": {
+      "title": "Recent",
+      "empty": "Nothing here yet — start a new design to see it pinned at the top."
+    },
+    "your": {
+      "title": "Your designs",
+      "empty": "No designs saved yet. Click \"New design\" to create your first one.",
+      "openAria": "Open {{name}}"
+    },
+    "examples": {
+      "title": "Examples",
+      "comingSoon": "A curated gallery of starter prompts is on the way."
+    },
+    "designSystems": {
+      "title": "Design systems",
+      "comingSoon": "Reusable brand systems and templates are on the way."
+    },
+    "card": {
+      "type": {
+        "prototype": "Prototype",
+        "slideDeck": "Slide deck",
+        "template": "From template",
+        "other": "Other"
+      },
+      "createdAt": "Created {{date}}",
+      "moreActions": "More actions for {{name}}",
+      "rename": "Rename",
+      "delete": "Delete"
+    }
+  },
+  "create": {
+    "title": "Start a new design",
+    "subtitle": "Pick a type so we can tailor the first prompt.",
+    "close": "Close",
+    "types": {
+      "prototype": "Prototype",
+      "slideDeck": "Slide deck",
+      "template": "From template",
+      "other": "Other"
+    },
+    "typeDescriptions": {
+      "prototype": "Interactive UI mockups with a phone or browser frame.",
+      "slideDeck": "A multi-slide deck for talks, pitches, or summaries.",
+      "template": "Start from one of the bundled starter prompts.",
+      "other": "A blank canvas — describe anything else you have in mind."
+    },
+    "fields": {
+      "name": "Project name",
+      "namePlaceholder": "Untitled design",
+      "fidelity": "Fidelity",
+      "fidelityWireframe": "Wireframe",
+      "fidelityWireframeHint": "Greyscale blocks, no imagery — quick exploration.",
+      "fidelityHigh": "High-fidelity",
+      "fidelityHighHint": "Polished colors, real-looking content.",
+      "fidelityComingSoon": "Wireframe vs. high-fidelity selection ships in a follow-up.",
+      "speakerNotes": "Include speaker notes",
+      "speakerNotesHint": "Adds a notes section under each slide for delivery cues.",
+      "template": "Template",
+      "templateHint": "Choose a starter — the first prompt will be pre-filled."
+    },
+    "cta": "Create",
+    "disabledHint": "Add a project name to continue.",
+    "help": {
+      "share": "Designs stay on this device. Sharing happens through bundle export — no cloud account needed.",
+      "templates": "More starters arrive in a follow-up; this list will keep growing."
+    }
+  },
+  "err": {
+    "IPC_BAD_INPUT": "The request contained invalid input. Please try again.",
+    "IPC_DB_ERROR": "A local database error occurred. Restarting the app may help.",
+    "IPC_NOT_FOUND": "The requested item was not found.",
+    "PROVIDER_AUTH_MISSING": "No API key found for this provider. Please add your key in Settings.",
+    "PROVIDER_KEY_MISSING": "No API key is stored for this provider. Add one in Settings.",
+    "PROVIDER_ACTIVE_MISSING_KEY": "The active provider has no API key. Open Settings to add one.",
+    "PROVIDER_NOT_SUPPORTED": "This provider is not supported. Check your provider configuration.",
+    "PROVIDER_MODEL_UNKNOWN": "The selected model is not available for this provider.",
+    "PROVIDER_BASE_URL_MISSING": "A base URL is required for this provider. Configure it in Settings.",
+    "PROVIDER_ERROR": "The provider returned an error. Check your API key and try again.",
+    "PROVIDER_HTTP_4XX": "The provider rejected the request. Verify your API key and billing.",
+    "PROVIDER_UPSTREAM_ERROR": "The provider returned an unexpected error. Details are in the log.",
+    "PROVIDER_GATEWAY_INCOMPATIBLE": "Your gateway returned 'not implemented' for the Messages API. Try switching wire to openai-chat in Settings, or use a gateway that supports the Anthropic Messages API.",
+    "PROVIDER_ABORTED": "Generation was cancelled.",
+    "PROVIDER_RETRY_EXHAUSTED": "The provider failed after several retries. Check your connection and try again.",
+    "CLAUDE_CODE_OAUTH_ONLY": "Your Claude Code login uses an Anthropic subscription (Pro/Max). Third-party apps cannot reuse the subscription quota — generate an API key at console.anthropic.com and use it here.",
+    "CODEX_TOKEN_PARSE_FAILED": "Local ChatGPT login is corrupted. Please re-login in Settings.",
+    "CODEX_TOKEN_NOT_LOGGED_IN": "ChatGPT subscription is not signed in. Please log in via Settings.",
+    "INPUT_EMPTY_PROMPT": "The prompt cannot be empty.",
+    "INPUT_EMPTY_COMMENT": "The comment cannot be empty.",
+    "INPUT_EMPTY_HTML": "Existing HTML is required for this operation.",
+    "INPUT_UNSUPPORTED_MODE": "This generation mode is not supported.",
+    "GENERATION_TIMEOUT": "Generation timed out. Try a shorter prompt or increase the timeout in Settings.",
+    "CONFIG_READ_FAILED": "Failed to read configuration file. Check file permissions.",
+    "CONFIG_PARSE_FAILED": "Configuration file could not be parsed. It may be corrupt.",
+    "CONFIG_SCHEMA_INVALID": "Configuration file has an unrecognised format. Please reconfigure.",
+    "CONFIG_NOT_LOADED": "Configuration has not been loaded yet. Please restart the app.",
+    "CONFIG_MISSING": "No configuration found. Complete onboarding to get started.",
+    "SNAPSHOTS_UNAVAILABLE": "The local design database is unavailable. Restarting the app may help.",
+    "BOOT_ORDER": "An internal startup error occurred. Please restart the app.",
+    "STORAGE_SETTINGS_READ_FAILED": "Failed to read storage location settings.",
+    "STORAGE_SETTINGS_PARSE_FAILED": "Storage location settings could not be parsed.",
+    "STORAGE_SETTINGS_INVALID": "Storage location settings contain invalid data.",
+    "KEYCHAIN_UNAVAILABLE": "OS keychain (secure storage) is not available. API keys cannot be stored.",
+    "KEYCHAIN_EMPTY_INPUT": "Cannot encrypt or decrypt an empty value.",
+    "ATTACHMENT_TOO_LARGE": "One or more attachments exceed the size limit.",
+    "ATTACHMENT_READ_FAILED": "Failed to read an attachment file. Check that the file still exists.",
+    "REFERENCE_URL_TOO_LARGE": "The reference URL content is too large to include.",
+    "REFERENCE_URL_FETCH_FAILED": "Could not fetch the reference URL. Check the URL and your internet connection.",
+    "REFERENCE_URL_FETCH_TIMEOUT": "Fetching the reference URL timed out. Try again or use a different URL.",
+    "REFERENCE_URL_UNSUPPORTED": "This type of reference URL is not supported.",
+    "PREFERENCES_READ_FAIL": "Failed to read preferences. Default settings will be used.",
+    "PREFERENCES_INVALID_TIMEOUT": "The generation timeout value is invalid.",
+    "SKILL_LOAD_FAILED": "One or more skills failed to load. Check your skill files for errors.",
+    "EXPORTER_UNKNOWN": "Unknown export format requested.",
+    "EXPORTER_NO_CHROME": "Chrome or Chromium was not found. Install it to enable PDF export.",
+    "EXPORTER_PDF_FAILED": "PDF export failed. Ensure Chrome is installed and try again.",
+    "EXPORTER_PPTX_FAILED": "PowerPoint export failed.",
+    "EXPORTER_ZIP_UNSAFE_PATH": "Export was blocked: an asset path would escape the ZIP archive.",
+    "EXPORTER_ZIP_FAILED": "ZIP export failed.",
+    "OPEN_PATH_FAILED": "Could not open the requested folder or file.",
+    "RENDERER_ERROR": "An error occurred in the renderer. Details are in the log."
+  }
+}
diff --git a/packages/i18n/src/locales/pt-BR.json b/packages/i18n/src/locales/pt-BR.json
index c605e180..771b6249 100644
--- a/packages/i18n/src/locales/pt-BR.json
+++ b/packages/i18n/src/locales/pt-BR.json
@@ -362,7 +362,8 @@
       "languageLoadFailed": "Falha ao carregar o idioma",
       "langEn": "English",
       "langZhCN": "中文 (简体)",
-      "langPtBR": "Português (BR)"
+      "langPtBR": "Português (BR)",
+      "langKo": "한국어"
     },
     "language": {
       "label": "Idioma",
diff --git a/packages/i18n/src/locales/zh-CN.json b/packages/i18n/src/locales/zh-CN.json
index c13b628a..5353a04c 100644
--- a/packages/i18n/src/locales/zh-CN.json
+++ b/packages/i18n/src/locales/zh-CN.json
@@ -397,7 +397,8 @@
       "languageLoadFailed": "加载语言设置失败",
       "langEn": "English",
       "langZhCN": "中文 (简体)",
-      "langPtBR": "Português (BR)"
+      "langPtBR": "Português (BR)",
+      "langKo": "한국어"
     },
     "language": {
       "label": "语言",
diff --git a/packages/templates/src/examples/index.ts b/packages/templates/src/examples/index.ts
index 100e70ad..344eae63 100644
--- a/packages/templates/src/examples/index.ts
+++ b/packages/templates/src/examples/index.ts
@@ -217,6 +217,7 @@ const REGISTRY: Record<Locale, Record<string, ExampleContent>> = {
   en: enExamples,
   'zh-CN': zhCNExamples,
   'pt-BR': ptBRExamples,
+  ko: enExamples,
 };
 
 function getRegistry(locale: string | undefined): Record<string, ExampleContent> {
diff --git a/packages/templates/src/index.ts b/packages/templates/src/index.ts
index 461baea3..f0d18085 100644
--- a/packages/templates/src/index.ts
+++ b/packages/templates/src/index.ts
@@ -34,6 +34,7 @@ const REGISTRY: Record<Locale, DemoTemplate[]> = {
   en: enDemos,
   'zh-CN': zhCNDemos,
   'pt-BR': ptBRDemos,
+  ko: enDemos,
 };
 
 export function getDemos(locale: string | undefined): DemoTemplate[] {