feat: add monitor center module

Changes:
- Add monitor center page with KPI cards, charts and request logs
- Implement channel stats, failure analysis, model distribution visualization
- Support time range filtering (last 1/6/24 hours)
- Add model disable feature with related hooks and state management
- Optimize request logs list performance with virtual scrolling
- Improve mobile styles and table scrolling experience
- Add i18n support for Chinese and English

Modified files:
- src/pages/MonitorPage.tsx (added)
- src/components/monitor/* (added, 10 components)
- src/hooks/useDisableModel.ts (added)
- src/utils/monitor.ts (added)
- src/i18n/locales/*.json (modified)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

src/services/api/providers.ts

@@ -194,5 +194,14 @@ export const providersApi = {
     apiClient.patch('/openai-compatibility', { index, value: serializeOpenAIProvider(value) }),
 
   deleteOpenAIProvider: (name: string) =>
-    apiClient.delete(`/openai-compatibility?name=${encodeURIComponent(name)}`)
+    apiClient.delete(`/openai-compatibility?name=${encodeURIComponent(name)}`),
+
+  // 通过 name 更新 OpenAI 兼容提供商（用于禁用模型）
+  patchOpenAIProviderByName: (name: string, value: Partial<OpenAIProviderConfig>) => {
+    const payload: Record<string, any> = {};
+    if (value.models !== undefined) {
+      payload.models = serializeModelAliases(value.models);
+    }
+    return apiClient.patch('/openai-compatibility', { name, value: payload });
+  }
 };