feat(i18n): migrate Providers page (1110 lines, 30+ strings)

- ProvidersPage: section headers, test buttons, compatible provider modals
- Expanded providers namespace from 16 to 73 keys in en.json and pt-BR.json
- Coverage: OAuth/Free/API Key/Compatible sections, batch test, modals

src/app/(dashboard)/dashboard/providers/page.tsx

@@ -23,6 +23,7 @@ import Link from "next/link";
 import { getErrorCode, getRelativeTime } from "@/shared/utils";
 import { useNotificationStore } from "@/store/notificationStore";
 import ModelAvailabilityBadge from "./components/ModelAvailabilityBadge";
+import { useTranslations } from "next-intl";
 
 // Shared helper function to avoid code duplication between ProviderCard and ApiKeyProviderCard
 function getStatusDisplay(connected, error, errorCode) {
@@ -97,6 +98,8 @@ export default function ProvidersPage() {
   const [testingMode, setTestingMode] = useState(null);
   const [testResults, setTestResults] = useState(null);
   const notify = useNotificationStore();
+  const t = useTranslations("providers");
+  const tc = useTranslations("common");
 
   useEffect(() => {
     const fetchData = async () => {
@@ -194,12 +197,12 @@ export default function ProvidersPage() {
       setTestResults(data);
       if (data.summary) {
         const { passed, failed, total } = data.summary;
-        if (failed === 0) notify.success(`All ${total} tests passed`);
-        else notify.warning(`${passed}/${total} passed, ${failed} failed`);
+        if (failed === 0) notify.success(t("allTestsPassed", { total }));
+        else notify.warning(t("testSummary", { passed, failed, total }));
       }
     } catch (error) {
-      setTestResults({ error: "Test request failed" });
-      notify.error("Provider test failed");
+      setTestResults({ error: t("providerTestFailed") });
+      notify.error(t("providerTestFailed"));
     } finally {
       setTestingMode(null);
     }
@@ -239,7 +242,8 @@ export default function ProvidersPage() {
       <div className="flex flex-col gap-4">
         <div className="flex items-center justify-between">
           <h2 className="text-xl font-semibold flex items-center gap-2">
-            OAuth Providers <span className="size-2.5 rounded-full bg-blue-500" title="OAuth" />
+            {t("oauthProviders")}{" "}
+            <span className="size-2.5 rounded-full bg-blue-500" title="OAuth" />
           </h2>
           <div className="flex items-center gap-2">
             <ModelAvailabilityBadge />
@@ -251,13 +255,13 @@ export default function ProvidersPage() {
                   ? "bg-primary/20 border-primary/40 text-primary animate-pulse"
                   : "bg-bg-subtle border-border text-text-muted hover:text-text-primary hover:border-primary/40"
               }`}
-              title="Test all OAuth connections"
-              aria-label="Test all OAuth connections"
+              title={t("testAllOAuth")}
+              aria-label={t("testAllOAuth")}
             >
               <span className="material-symbols-outlined text-[14px]">
                 {testingMode === "oauth" ? "sync" : "play_arrow"}
               </span>
-              {testingMode === "oauth" ? "Testing..." : "Test All"}
+              {testingMode === "oauth" ? t("testing") : t("testAll")}
             </button>
           </div>
         </div>
@@ -279,7 +283,8 @@ export default function ProvidersPage() {
       <div className="flex flex-col gap-4">
         <div className="flex items-center justify-between">
           <h2 className="text-xl font-semibold flex items-center gap-2">
-            Free Providers <span className="size-2.5 rounded-full bg-green-500" title="Free" />
+            {t("freeProviders")}{" "}
+            <span className="size-2.5 rounded-full bg-green-500" title="Free" />
           </h2>
           <button
             onClick={() => handleBatchTest("free")}
@@ -289,13 +294,13 @@ export default function ProvidersPage() {
                 ? "bg-primary/20 border-primary/40 text-primary animate-pulse"
                 : "bg-bg-subtle border-border text-text-muted hover:text-text-primary hover:border-primary/40"
             }`}
-            title="Test all Free connections"
-            aria-label="Test all Free provider connections"
+            title={t("testAllFree")}
+            aria-label={t("testAllFree")}
           >
             <span className="material-symbols-outlined text-[14px]">
               {testingMode === "free" ? "sync" : "play_arrow"}
             </span>
-            {testingMode === "free" ? "Testing..." : "Test All"}
+            {testingMode === "free" ? t("testing") : t("testAll")}
           </button>
         </div>
         <div className="grid grid-cols-1 sm:grid-cols-2 lg:grid-cols-3 xl:grid-cols-4 gap-4">
@@ -316,7 +321,7 @@ export default function ProvidersPage() {
       <div className="flex flex-col gap-4">
         <div className="flex items-center justify-between">
           <h2 className="text-xl font-semibold flex items-center gap-2">
-            API Key Providers{" "}
+            {t("apiKeyProviders")}{" "}
             <span className="size-2.5 rounded-full bg-amber-500" title="API Key" />
           </h2>
           <button
@@ -327,13 +332,13 @@ export default function ProvidersPage() {
                 ? "bg-primary/20 border-primary/40 text-primary animate-pulse"
                 : "bg-bg-subtle border-border text-text-muted hover:text-text-primary hover:border-primary/40"
             }`}
-            title="Test all API Key connections"
-            aria-label="Test all API Key connections"
+            title={t("testAllApiKey")}
+            aria-label={t("testAllApiKey")}
           >
             <span className="material-symbols-outlined text-[14px]">
               {testingMode === "apikey" ? "sync" : "play_arrow"}
             </span>
-            {testingMode === "apikey" ? "Testing..." : "Test All"}
+            {testingMode === "apikey" ? t("testing") : t("testAll")}
           </button>
         </div>
         <div className="grid grid-cols-1 sm:grid-cols-2 lg:grid-cols-3 xl:grid-cols-4 gap-4">
@@ -354,7 +359,7 @@ export default function ProvidersPage() {
       <div className="flex flex-col gap-4">
         <div className="flex items-center justify-between">
           <h2 className="text-xl font-semibold flex items-center gap-2">
-            API Key Compatible Providers{" "}
+            {t("compatibleProviders")}{" "}
             <span className="size-2.5 rounded-full bg-orange-500" title="Compatible" />
           </h2>
           <div className="flex gap-2">
@@ -367,16 +372,16 @@ export default function ProvidersPage() {
                     ? "bg-primary/20 border-primary/40 text-primary animate-pulse"
                     : "bg-bg-subtle border-border text-text-muted hover:text-text-primary hover:border-primary/40"
                 }`}
-                title="Test all Compatible connections"
+                title={t("testAllCompatible")}
               >
                 <span className="material-symbols-outlined text-[14px]">
                   {testingMode === "compatible" ? "sync" : "play_arrow"}
                 </span>
-                {testingMode === "compatible" ? "Testing..." : "Test All"}
+                {testingMode === "compatible" ? t("testing") : t("testAll")}
               </button>
             )}
             <Button size="sm" icon="add" onClick={() => setShowAddAnthropicCompatibleModal(true)}>
-              Add Anthropic Compatible
+              {t("addAnthropicCompatible")}
             </Button>
             <Button
               size="sm"
@@ -385,7 +390,7 @@ export default function ProvidersPage() {
               onClick={() => setShowAddCompatibleModal(true)}
               className="!bg-white !text-black hover:!bg-gray-100"
             >
-              Add OpenAI Compatible
+              {t("addOpenAICompatible")}
             </Button>
           </div>
         </div>
@@ -394,10 +399,8 @@ export default function ProvidersPage() {
             <span className="material-symbols-outlined text-[32px] text-text-muted mb-2">
               extension
             </span>
-            <p className="text-text-muted text-sm">No compatible providers added yet</p>
-            <p className="text-text-muted text-xs mt-1">
-              Use the buttons above to add OpenAI or Anthropic compatible endpoints
-            </p>
+            <p className="text-text-muted text-sm">{t("noCompatibleYet")}</p>
+            <p className="text-text-muted text-xs mt-1">{t("compatibleHint")}</p>
           </div>
         ) : (
           <div className="grid grid-cols-1 sm:grid-cols-2 lg:grid-cols-3 xl:grid-cols-4 gap-4">
@@ -442,7 +445,7 @@ export default function ProvidersPage() {
             onClick={(e) => e.stopPropagation()}
           >
             <div className="sticky top-0 z-10 flex items-center justify-between px-5 py-3 border-b border-border bg-bg-primary/95 backdrop-blur-sm rounded-t-xl">
-              <h3 className="font-semibold">Test Results</h3>
+              <h3 className="font-semibold">{t("testResults")}</h3>
               <button
                 onClick={() => setTestResults(null)}
                 className="p-1 rounded-lg hover:bg-bg-subtle text-text-muted hover:text-text-primary transition-colors"

src/i18n/messages/en.json

@@ -498,7 +498,73 @@
     "testFailed": "Connection failed",
     "available": "Available",
     "unavailable": "Unavailable",
-    "unknown": "Unknown"
+    "unknown": "Unknown",
+    "oauthProviders": "OAuth Providers",
+    "freeProviders": "Free Providers",
+    "apiKeyProviders": "API Key Providers",
+    "compatibleProviders": "API Key Compatible Providers",
+    "testAll": "Test All",
+    "testAllOAuth": "Test all OAuth connections",
+    "testAllFree": "Test all Free connections",
+    "testAllApiKey": "Test all API Key connections",
+    "testAllCompatible": "Test all Compatible connections",
+    "connected": "{count} Connected",
+    "errorCount": "{count} Error ({code})",
+    "errorCountNoCode": "{count} Error",
+    "noConnections": "No connections",
+    "disabled": "Disabled",
+    "enableProvider": "Enable provider",
+    "disableProvider": "Disable provider",
+    "testResults": "Test Results",
+    "noCompatibleYet": "No compatible providers added yet",
+    "compatibleHint": "Use the buttons above to add OpenAI or Anthropic compatible endpoints",
+    "addOpenAICompatible": "Add OpenAI Compatible",
+    "addAnthropicCompatible": "Add Anthropic Compatible",
+    "addNewProvider": "Add New Provider",
+    "backToProviders": "Back to Providers",
+    "configureNewProvider": "Configure a new AI provider to use with your applications.",
+    "selectProvider": "Select a provider",
+    "selectedProvider": "Selected provider",
+    "authMethod": "Authentication Method",
+    "apiKeyRequired": "API Key is required",
+    "selectProviderRequired": "Please select a provider",
+    "enterApiKey": "Enter your API key",
+    "apiKeySecure": "Your API key will be encrypted and stored securely.",
+    "oauth2Connect": "Connect with OAuth2",
+    "oauth2Desc": "Connect your account using OAuth2 authentication.",
+    "displayName": "Display Name",
+    "displayNamePlaceholder": "e.g., Production API, Dev Environment",
+    "displayNameHint": "Optional. A friendly name to identify this configuration.",
+    "active": "Active",
+    "activeDescription": "Enable this provider for use in your applications",
+    "createProvider": "Create Provider",
+    "failedCreate": "Failed to create provider",
+    "errorOccurred": "An error occurred. Please try again.",
+    "modelStatus": "Model Status",
+    "allModelsOperational": "All models operational",
+    "modelsWithIssues": "{count} model(s) with issues",
+    "allModelsNormal": "All models are responding normally.",
+    "cooldownCleared": "Cooldown cleared for {model}",
+    "failedClearCooldown": "Failed to clear cooldown",
+    "loadingAvailability": "Loading model availability...",
+    "clearCooldown": "Clear",
+    "clearing": "Clearing...",
+    "providerTestFailed": "Provider test failed",
+    "allTestsPassed": "All {total} tests passed",
+    "testSummary": "{passed}/{total} passed, {failed} failed",
+    "nameLabel": "Name",
+    "prefixLabel": "Prefix",
+    "baseUrlLabel": "Base URL",
+    "apiTypeLabel": "API Type",
+    "prefixHint": "Required. Unique prefix for model names.",
+    "nameHint": "Required. A friendly label for this node.",
+    "baseUrlHint": "Required. \u2003Provider API base URL.",
+    "validateConnection": "Validate Connection",
+    "validating": "Validating...",
+    "connectionValid": "Connection is valid!",
+    "connectionFailed": "Connection failed. Check URL and key.",
+    "testKeyLabel": "Test API Key",
+    "testKeyPlaceholder": "sk-... (for validation only)"
   },
   "settings": {
     "title": "Settings",

src/i18n/messages/pt-BR.json

@@ -498,7 +498,73 @@
     "testFailed": "Falha na conexão",
     "available": "Disponível",
     "unavailable": "Indisponível",
-    "unknown": "Desconhecido"
+    "unknown": "Desconhecido",
+    "oauthProviders": "Provedores OAuth",
+    "freeProviders": "Provedores Gratuitos",
+    "apiKeyProviders": "Provedores por Chave de API",
+    "compatibleProviders": "Provedores Compatíveis por Chave de API",
+    "testAll": "Testar Todos",
+    "testAllOAuth": "Testar todas as conexões OAuth",
+    "testAllFree": "Testar todas as conexões gratuitas",
+    "testAllApiKey": "Testar todas as conexões por chave de API",
+    "testAllCompatible": "Testar todas as conexões compatíveis",
+    "connected": "{count} Conectado(s)",
+    "errorCount": "{count} Erro ({code})",
+    "errorCountNoCode": "{count} Erro",
+    "noConnections": "Sem conexões",
+    "disabled": "Desativado",
+    "enableProvider": "Ativar provedor",
+    "disableProvider": "Desativar provedor",
+    "testResults": "Resultados do Teste",
+    "noCompatibleYet": "Nenhum provedor compatível adicionado",
+    "compatibleHint": "Use os botões acima para adicionar endpoints compatíveis com OpenAI ou Anthropic",
+    "addOpenAICompatible": "Adicionar Compatível OpenAI",
+    "addAnthropicCompatible": "Adicionar Compatível Anthropic",
+    "addNewProvider": "Adicionar Novo Provedor",
+    "backToProviders": "Voltar para Provedores",
+    "configureNewProvider": "Configure um novo provedor de IA para usar com suas aplicações.",
+    "selectProvider": "Selecione um provedor",
+    "selectedProvider": "Provedor selecionado",
+    "authMethod": "Método de Autenticação",
+    "apiKeyRequired": "Chave de API é obrigatória",
+    "selectProviderRequired": "Selecione um provedor",
+    "enterApiKey": "Digite sua chave de API",
+    "apiKeySecure": "Sua chave de API será criptografada e armazenada com segurança.",
+    "oauth2Connect": "Conectar com OAuth2",
+    "oauth2Desc": "Conecte sua conta usando autenticação OAuth2.",
+    "displayName": "Nome de Exibição",
+    "displayNamePlaceholder": "ex.: API de Produção, Ambiente Dev",
+    "displayNameHint": "Opcional. Um nome amigável para identificar esta configuração.",
+    "active": "Ativo",
+    "activeDescription": "Habilitar este provedor para uso em suas aplicações",
+    "createProvider": "Criar Provedor",
+    "failedCreate": "Falha ao criar provedor",
+    "errorOccurred": "Ocorreu um erro. Tente novamente.",
+    "modelStatus": "Status dos Modelos",
+    "allModelsOperational": "Todos os modelos operacionais",
+    "modelsWithIssues": "{count} modelo(s) com problemas",
+    "allModelsNormal": "Todos os modelos estão respondendo normalmente.",
+    "cooldownCleared": "Cooldown limpo para {model}",
+    "failedClearCooldown": "Falha ao limpar cooldown",
+    "loadingAvailability": "Carregando disponibilidade dos modelos...",
+    "clearCooldown": "Limpar",
+    "clearing": "Limpando...",
+    "providerTestFailed": "Teste de provedor falhou",
+    "allTestsPassed": "Todos os {total} testes passaram",
+    "testSummary": "{passed}/{total} passaram, {failed} falharam",
+    "nameLabel": "Nome",
+    "prefixLabel": "Prefixo",
+    "baseUrlLabel": "URL Base",
+    "apiTypeLabel": "Tipo de API",
+    "prefixHint": "Obrigatório. Prefixo único para nomes de modelos.",
+    "nameHint": "Obrigatório. Um rótulo amigável para este nó.",
+    "baseUrlHint": "Obrigatório. URL base da API do provedor.",
+    "validateConnection": "Validar Conexão",
+    "validating": "Validando...",
+    "connectionValid": "Conexão válida!",
+    "connectionFailed": "Falha na conexão. Verifique URL e chave.",
+    "testKeyLabel": "Chave de API de Teste",
+    "testKeyPlaceholder": "sk-... (apenas para validação)"
   },
   "settings": {
     "title": "Configurações",