refactor(relay): extract shared relay policy presets across endpoints

pages/api/endpoint/getbasicsearch_api.js

@@ -18,6 +18,7 @@
 import { azureHeadersPaged } from "../../../actions/core/headers";
 import { respondError } from "../middleware/apiResponse";
 import { relayGet } from "../middleware/relayForwarding";
+import { RELAY_POLICY_BOUNDED_READ } from "../middleware/relayPolicyPresets";
 
 export default async function ApiProxy(req, res) {
     const searchString = req.query.searchString;
@@ -45,13 +46,7 @@ export default async function ApiProxy(req, res) {
             : "") +
         "and pinswg_publishtoweb eq true&$orderby=createdon desc&$count=true";
 
-    const relayPolicy = {
-        method: "GET",
-        timeoutMs: 8000,
-        maxRetries: 2,
-        retryBaseDelayMs: 150,
-        retryMaxDelayMs: 800
-    };
+    const relayPolicy = RELAY_POLICY_BOUNDED_READ;
 
     return relayGet({
         queryUrl,