refactor: move memory host into sdk package

packages/memory-host-sdk/src/host/batch-utils.ts

@@ -0,0 +1,38 @@
+import type { SsrFPolicy } from "../../../../src/infra/net/ssrf.js";
+
+export type BatchHttpClientConfig = {
+  baseUrl?: string;
+  headers?: Record<string, string>;
+  ssrfPolicy?: SsrFPolicy;
+};
+
+export function normalizeBatchBaseUrl(client: BatchHttpClientConfig): string {
+  return client.baseUrl?.replace(/\/$/, "") ?? "";
+}
+
+export function buildBatchHeaders(
+  client: Pick<BatchHttpClientConfig, "headers">,
+  params: { json: boolean },
+): Record<string, string> {
+  const headers = client.headers ? { ...client.headers } : {};
+  if (params.json) {
+    if (!headers["Content-Type"] && !headers["content-type"]) {
+      headers["Content-Type"] = "application/json";
+    }
+  } else {
+    delete headers["Content-Type"];
+    delete headers["content-type"];
+  }
+  return headers;
+}
+
+export function splitBatchRequests<T>(requests: T[], maxRequests: number): T[][] {
+  if (requests.length <= maxRequests) {
+    return [requests];
+  }
+  const groups: T[][] = [];
+  for (let i = 0; i < requests.length; i += maxRequests) {
+    groups.push(requests.slice(i, i + maxRequests));
+  }
+  return groups;
+}