fix: deduplicate workbench requests and remove unused map paths

src/features/agent/api/client.ts

@@ -220,24 +220,16 @@ export type AgentApiClientOptions = {
   getProjectId?: () => Promise<string | undefined>;
 };
 
-const AGENT_API_BASE_URLS = [env.TJWATER_AGENT_URL.replace(/\/$/, "")];
-
 const API_PATH = "/api/v1";
 
 export function createAgentApiClient(
-  baseUrls: string | string[] = AGENT_API_BASE_URLS,
+  baseUrl: string = env.TJWATER_AGENT_URL,
   options: AgentApiClientOptions = {}
 ): AgentApiClient {
-  const candidates = (Array.isArray(baseUrls) ? baseUrls : [baseUrls]).map((item) => item.replace(/\/$/, ""));
-  let activeBaseUrl = candidates[0] ?? "";
-  const setActiveBaseUrl = (baseUrl: string) => {
-    activeBaseUrl = baseUrl;
-  };
+  const normalizedBaseUrl = baseUrl.replace(/\/$/, "");
   const request = (path: string, init?: RequestInit) =>
-    fetchWithFallback(
-      candidates,
-      activeBaseUrl,
-      setActiveBaseUrl,
+    fetchAgent(
+      normalizedBaseUrl,
       path,
       init,
       options.getAccessToken,
@@ -265,7 +257,7 @@ export function createAgentApiClient(
     return token;
   } : undefined;
   const answerStateRequest = async (path: string, init?: RequestInit) => {
-    const response = await fetchWithFallback(candidates, activeBaseUrl, setActiveBaseUrl, path, init,
+    const response = await fetchAgent(normalizedBaseUrl, path, init,
       checkedAnswerStateToken, options.getProjectId);
     // An identity change while awaiting the network also invalidates the result.
     await checkedAnswerStateToken?.();
@@ -275,7 +267,7 @@ export function createAgentApiClient(
   return {
     ...createInteractionRequestApi(answerStateRequest),
     async getHealth(signal) {
-      const response = await fetchWithFallback(candidates, activeBaseUrl, setActiveBaseUrl, "/health", { signal, cache: "no-store" }, undefined, undefined, "");
+      const response = await fetchAgent(normalizedBaseUrl, "/health", { signal, cache: "no-store" }, undefined, undefined, "");
       if (!response.ok) throw new Error("Agent 服务暂不可用");
       const data: unknown = await response.json();
       if (!isRecord(data) || data.ok !== true || data.ready !== true) throw new Error("Agent 服务尚未就绪");
@@ -579,19 +571,14 @@ export function createAgentApiClient(
   };
 }
 
-async function fetchWithFallback(
-  baseUrls: string[],
-  activeBaseUrl: string,
-  setActiveBaseUrl: (baseUrl: string) => void,
+async function fetchAgent(
+  baseUrl: string,
   path: string,
   init?: RequestInit,
   getAccessToken?: AccessTokenProvider,
   getProjectId?: () => Promise<string | undefined>,
   prefix = API_PATH
 ) {
-  const orderedBaseUrls = [activeBaseUrl, ...baseUrls.filter((item) => item !== activeBaseUrl)];
-  let lastError: unknown;
-  let lastResponse: Response | null = null;
   const accessToken = await getAccessToken?.();
   const projectId = await getProjectId?.();
   const hasContextHeaders = Boolean(accessToken || projectId);
@@ -600,34 +587,7 @@ async function fetchWithFallback(
   if (projectId) headers?.set("X-Project-Id", projectId);
   const requestInit = hasContextHeaders ? { ...init, headers } : init;
 
-  for (const baseUrl of orderedBaseUrls) {
-    try {
-      const response = await fetch(`${baseUrl}${prefix}${path}`, requestInit);
-      if (response.ok) {
-        setActiveBaseUrl(baseUrl);
-        return response;
-      }
-
-      lastResponse = response;
-      if (shouldFallbackOnHttpStatus(response.status) && baseUrl !== orderedBaseUrls[orderedBaseUrls.length - 1]) {
-        await response.body?.cancel();
-        continue;
-      }
-      return response;
-    } catch (error) {
-      lastError = error;
-    }
-  }
-
-  if (lastResponse) {
-    return lastResponse;
-  }
-
-  throw lastError instanceof Error ? lastError : new Error("Agent API unavailable");
-}
-
-function shouldFallbackOnHttpStatus(status: number) {
-  return status === 404 || status === 405 || status === 502 || status === 503 || status === 504;
+  return fetch(`${baseUrl}${prefix}${path}`, requestInit);
 }
 
 function isRecord(value: unknown): value is Record<string, unknown> {