feat(provider): 完成阶段E协议适配、国内预设与模型路由

frontend/src/services/modelRoutingService.ts

@@ -0,0 +1,11 @@
+import type { ModelRoutingConfig, ModelRoutingResponse } from '@/contracts'
+import apiClient from './apiClient'
+
+export function getModelRouting(): Promise<ModelRoutingResponse> {
+  return apiClient.get('/api/model-routing')
+}
+
+// version is the last version read from the server (optimistic concurrency).
+export function saveModelRouting(config: ModelRoutingConfig): Promise<ModelRoutingResponse> {
+  return apiClient.put('/api/model-routing', config)
+}