feat: add members API service with getMembers method

surfsense_web/lib/apis/members-api.service.ts

@@ -0,0 +1,21 @@
+import { baseApiService } from "./base-api.service";
+import {
+	type GetMembersRequest,
+	getMembersRequest,
+	getMembersResponse,
+} from "@/contracts/types/members.types";
+
+class MembersApiService {
+	/**
+	 * Get members of a search space
+	 */
+	async getMembers(request: GetMembersRequest) {
+		const parsedRequest = getMembersRequest.parse(request);
+		return baseApiService.get(
+			`/searchspaces/${parsedRequest.search_space_id}/members`,
+			getMembersResponse,
+		);
+	}
+}
+
+export const membersApiService = new MembersApiService();