feat(models): show LangBot Models availability

web/src/app/infra/entities/api/index.ts

@@ -158,6 +158,24 @@ export interface RerankModel {
   extra_args?: object;
 }
 
+export interface LangBotModelAvailability {
+  up: boolean | null;
+  last_probed_at: string | null;
+  latency_ms: number;
+  http_code: number;
+}
+
+export interface LangBotModelAvailabilityItem {
+  uuid: string;
+  model_id: string;
+  category: string | null;
+  availability: LangBotModelAvailability;
+}
+
+export interface ApiRespLangBotModelAvailability {
+  models: LangBotModelAvailabilityItem[];
+}
+
 export interface ApiRespPipelines {
   pipelines: Pipeline[];
 }

web/src/app/infra/http/BackendClient.ts

@@ -63,6 +63,7 @@ import {
   BotRouteDryRunRequest,
   BotRouteDryRunResult,
   BotEventRouteStatusResponse,
+  ApiRespLangBotModelAvailability,
 } from '@/app/infra/entities/api';
 import { Plugin } from '@/app/infra/entities/plugin';
 import type { PluginLogEntry } from '@/app/infra/entities/plugin';
@@ -1250,6 +1251,10 @@ export class BackendClient extends BaseHttpClient {
     return this.get('/api/v1/system/wizard/recommended-model');
   }
 
+  public getLangBotModelAvailability(): Promise<ApiRespLangBotModelAvailability> {
+    return this.get('/api/v1/system/model-availability');
+  }
+
   public getAsyncTasks(params?: {
     type?: string;
     kind?: string;