refactor(ai): update summary config to use summaryTargetLanguages array

Align with mx-core change: replace aiSummaryTargetLanguage string input
with summaryTargetLanguages array, reuse TranslationLanguagesInput component.

Author: Innei

src/models/options.ts

@@ -117,7 +117,7 @@ export module MxServerOptions {
     commentReviewModel?: AIModelAssignment
     enableSummary: boolean
     enableAutoGenerateSummary: boolean
-    aiSummaryTargetLanguage: string
+    summaryTargetLanguages: string[]
   }
 
   export interface ModelInfo {

src/views/setting/tabs/sections/ai-config.tsx

@@ -50,7 +50,7 @@ interface AIConfig {
   translationModel?: AIModelAssignment
   enableSummary: boolean
   enableAutoGenerateSummary: boolean
-  aiSummaryTargetLanguage: string
+  summaryTargetLanguages?: string[]
   enableTranslation?: boolean
   enableAutoGenerateTranslation?: boolean
   translationTargetLanguages?: string[]
@@ -867,15 +867,14 @@ export const AIConfigSection = defineComponent({
             />
           </SettingsRow>
 
-          <SettingsRow title="摘要目标语言">
-            <NInput
-              value={config.value.aiSummaryTargetLanguage}
-              onUpdateValue={(v: string) =>
-                updateConfig({ aiSummaryTargetLanguage: v })
-              }
-              placeholder="auto 或 ISO 639-1 语言代码"
-              class="max-w-[200px]"
-              size="small"
+          <SettingsRow
+            title="摘要目标语言"
+            description="自动生成摘要的目标语言列表，使用 ISO 639-1 语言代码"
+          >
+            <TranslationLanguagesInput
+              value={config.value.summaryTargetLanguages || []}
+              onUpdate={(v) => updateConfig({ summaryTargetLanguages: v })}
+              disabled={!config.value.enableSummary}
             />
           </SettingsRow>
         </SettingsSection>