Keep provider validation messages locale neutral

The credential validation IPC returned Chinese success text that Settings rendered directly. Return a structured model count instead and let the frontend localize success or empty-list states through existing i18n resources.

Constraint: Review comment requires locale-neutral validation output.

Rejected: Returning message keys from Rust | model count is simpler and keeps presentation entirely in the frontend.

Confidence: high

Scope-risk: narrow

Tested: cargo check --manifest-path openless-all/app/src-tauri/Cargo.toml

Tested: npm run build

Tested: git diff --check

openless-all/app/src-tauri/src/commands.rs

@@ -85,9 +85,10 @@ pub fn read_credential(account: String) -> Result<Option<String>, String> {
 }
 
 #[derive(Serialize)]
+#[serde(rename_all = "camelCase")]
 pub struct ProviderCheckResult {
     ok: bool,
-    message: String,
+    model_count: usize,
 }
 
 #[derive(Serialize)]
@@ -102,11 +103,7 @@ pub async fn validate_provider_credentials(kind: String) -> Result<ProviderCheck
         .await
         .map(|models| ProviderCheckResult {
             ok: true,
-            message: if models.is_empty() {
-                "鉴权成功，但账号未返回可用模型".to_string()
-            } else {
-                format!("鉴权成功，可用模型 {} 个", models.len())
-            },
+            model_count: models.len(),
         })
 }
 

openless-all/app/src/i18n/en.ts

@@ -255,7 +255,7 @@ export const en: typeof zhCN = {
       modelsEmpty: 'Credentials are valid, but no models were returned.',
       modelsLoaded: 'Fetched {{count}} models.',
       selectModel: 'Select a model to fill the field above',
-      validateSuccess: 'Credentials are valid.',
+      validateSuccess: 'Credentials are valid. {{count}} models available.',
       providerHttpStatus: 'Provider returned HTTP {{status}}. Check the API key permissions or endpoint.',
       apiKeyMissing: 'API Key is empty.',
       endpointMissing: 'Endpoint is empty.',

openless-all/app/src/i18n/zh-CN.ts

@@ -253,7 +253,7 @@ export const zhCN = {
       modelsEmpty: '鉴权成功，但没有返回可用模型。',
       modelsLoaded: '已拉取 {{count}} 个模型。',
       selectModel: '选择一个模型写入上方字段',
-      validateSuccess: '鉴权成功。',
+      validateSuccess: '鉴权成功，可用模型 {{count}} 个。',
       providerHttpStatus: '供应商接口返回 {{status}}，请检查 API Key 权限或 Endpoint。',
       apiKeyMissing: 'API Key 为空。',
       endpointMissing: 'Endpoint 为空。',

openless-all/app/src/lib/ipc.ts

@@ -65,7 +65,7 @@ const mockCredentialsStatus: CredentialsStatus = {
 
 export interface ProviderCheckResult {
   ok: boolean;
-  message: string;
+  modelCount: number;
 }
 
 export interface ProviderModelsResult {
@@ -141,7 +141,7 @@ export function readCredential(account: string): Promise<string | null> {
 }
 
 export function validateProviderCredentials(kind: 'llm' | 'asr'): Promise<ProviderCheckResult> {
-  return invokeOrMock('validate_provider_credentials', { kind }, () => ({ ok: true, message: 'Mock credentials are valid.' }));
+  return invokeOrMock('validate_provider_credentials', { kind }, () => ({ ok: true, modelCount: 2 }));
 }
 
 export function listProviderModels(kind: 'llm' | 'asr'): Promise<ProviderModelsResult> {

openless-all/app/src/pages/Settings.tsx

@@ -407,7 +407,12 @@ function ProviderTools({ kind, modelAccount, onModelSelected }: { kind: 'llm' |
     setResult('loading', t('settings.providers.validating'));
     try {
       const result = await validateProviderCredentials(kind);
-      setResult(result.ok ? 'success' : 'error', result.message || t('settings.providers.validateSuccess'));
+      setResult(
+        result.ok ? (result.modelCount === 0 ? 'empty' : 'success') : 'error',
+        result.modelCount === 0
+          ? t('settings.providers.modelsEmpty')
+          : t('settings.providers.validateSuccess', { count: result.modelCount }),
+      );
     } catch (error) {
       setResult('error', providerErrorMessage(error, t));
     }