fix(i18n): add i18n support for custom model feature in ModelSelector (#172)

* feat(models): add custom model name input with provider selector

- Add custom model input field at bottom of model selector modal
- Add provider dropdown to specify target provider for custom model
- Track custom models in app store and display with CUSTOM badge
- Merge custom model into provider group list
- Fix custom provider models being overwritten by API response (keep both)

* Upload screenshot

* fix(i18n): add i18n support for custom model feature in ModelSelector

Replace hardcoded English strings (CUSTOM badge, placeholder, hint) with
vue-i18n t() calls and add corresponding translation keys to all 8 locales
(en, zh, ja, ko, fr, es, de, pt).

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

---------

Co-authored-by: toller892 <892@users.noreply.github.com>
Co-authored-by: Tony <125938283+toller892@users.noreply.github.com>
Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>

packages/client/src/i18n/locales/de.ts

@@ -252,6 +252,9 @@ export default {
     nousApproved: 'Login erfolgreich',
     nousDenied: 'Autorisierung wurde abgelehnt',
     nousExpired: 'Autorisierung abgelaufen',
+    customBadge: 'BENUTZERDEF.',
+    customModelPlaceholder: 'Benutzerdefinierter Modellname',
+    customModelHint: 'Enter zum Laden',
     noProviders: 'Keine Anbieter gefunden. Fugen Sie einen benutzerdefinierten Anbieter hinzu, um zu beginnen.',
     builtIn: 'Integriert',
     customType: 'Benutzerdefiniert',

packages/client/src/i18n/locales/en.ts

@@ -277,6 +277,9 @@ export default {
     nousApproved: 'Login successful',
     nousDenied: 'Authorization was denied. Please try again.',
     nousExpired: 'Authorization expired. Please try again.',
+    customBadge: 'CUSTOM',
+    customModelPlaceholder: 'Custom model name',
+    customModelHint: 'Enter to load',
     noProviders: 'No providers found. Add a custom provider to get started.',
     builtIn: 'Built-in',
     customType: 'Custom',

packages/client/src/i18n/locales/es.ts

@@ -252,6 +252,9 @@ export default {
     nousApproved: 'Inicio de sesión exitoso',
     nousDenied: 'Autorización denegada',
     nousExpired: 'Autorización expirada',
+    customBadge: 'PERSONALIZADO',
+    customModelPlaceholder: 'Nombre del modelo personalizado',
+    customModelHint: 'Enter para cargar',
     noProviders: 'No se encontraron proveedores. Anade un proveedor personalizado para comenzar.',
     builtIn: 'Integrado',
     customType: 'Personalizado',

packages/client/src/i18n/locales/fr.ts

@@ -252,6 +252,9 @@ export default {
     nousApproved: 'Connexion réussie',
     nousDenied: 'Autorisation refusée',
     nousExpired: 'Autorisation expirée',
+    customBadge: 'PERSONNALISÉ',
+    customModelPlaceholder: 'Nom du modèle personnalisé',
+    customModelHint: 'Entrée pour charger',
     noProviders: 'Aucun fournisseur trouve. Ajoutez un fournisseur personnalise pour commencer.',
     builtIn: 'Integre',
     customType: 'Personnalise',

packages/client/src/i18n/locales/ja.ts

@@ -252,6 +252,9 @@ export default {
     nousApproved: 'ログイン成功',
     nousDenied: '認証が拒否されました',
     nousExpired: '認証の有効期限が切れました',
+    customBadge: 'カスタム',
+    customModelPlaceholder: 'カスタムモデル名',
+    customModelHint: 'Enterで読み込み',
     noProviders: 'プロバイダーがありません。カスタムプロバイダーを追加して始めましょう。',
     builtIn: '組み込み',
     customType: 'カスタム',

packages/client/src/i18n/locales/ko.ts

@@ -252,6 +252,9 @@ export default {
     nousApproved: '로그인 성공',
     nousDenied: '인증이 거부되었습니다',
     nousExpired: '인증이 만료되었습니다',
+    customBadge: '커스텀',
+    customModelPlaceholder: '사용자 지정 모델 이름',
+    customModelHint: 'Enter로 불러오기',
     noProviders: 'Provider가 없습니다. 사용자 지정 Provider를 추가하여 시작하세요.',
     builtIn: '내장',
     customType: '사용자 지정',

packages/client/src/i18n/locales/pt.ts

@@ -252,6 +252,9 @@ export default {
     nousApproved: 'Login bem-sucedido',
     nousDenied: 'Autorização negada',
     nousExpired: 'Autorização expirada',
+    customBadge: 'PERSONALIZADO',
+    customModelPlaceholder: 'Nome do modelo personalizado',
+    customModelHint: 'Enter para carregar',
     noProviders: 'Nenhum provedor encontrado. Adicione um provedor personalizado para comecar.',
     builtIn: 'Integrado',
     customType: 'Personalizado',

packages/client/src/i18n/locales/zh.ts

@@ -277,6 +277,9 @@ export default {
     nousApproved: '登录成功',
     nousDenied: '授权被拒绝，请重试。',
     nousExpired: '授权已过期，请重试。',
+    customBadge: '自定义',
+    customModelPlaceholder: '自定义模型名称',
+    customModelHint: '按回车加载',
     noProviders: '暂无 Provider，添加一个开始吧。',
     builtIn: '内置',
     customType: '自定义',