add modern version of request construction

ts/modern/index.ts

@@ -0,0 +1,45 @@
+// Export the main client
+export { SmartRequestClient } from './smartrequestclient.js';
+
+// Export types
+export type { HttpMethod, ResponseType, FormField, RetryConfig, TimeoutConfig } from './types/common.js';
+export { 
+  PaginationStrategy,
+  type TPaginationConfig as PaginationConfig,
+  type OffsetPaginationConfig,
+  type CursorPaginationConfig,
+  type LinkPaginationConfig,
+  type CustomPaginationConfig,
+  type TPaginatedResponse as PaginatedResponse
+} from './types/pagination.js';
+
+// Convenience factory functions
+import { SmartRequestClient } from './smartrequestclient.js';
+
+/**
+ * Create a client pre-configured for JSON requests
+ */
+export function createJsonClient<T = any>() {
+  return SmartRequestClient.create<T>();
+}
+
+/**
+ * Create a client pre-configured for form data requests
+ */
+export function createFormClient<T = any>() {
+  return SmartRequestClient.create<T>();
+}
+
+/**
+ * Create a client pre-configured for binary data
+ */
+export function createBinaryClient<T = any>() {
+  return SmartRequestClient.create<T>().responseType('binary');
+}
+
+/**
+ * Create a client pre-configured for streaming
+ */
+export function createStreamClient() {
+  return SmartRequestClient.create().responseType('stream');
+}