sdk: simplify getting started with single createOpencode function

Makes it easier for developers to get started by providing a single function that creates both server and client, removing the need to manually coordinate separate server and client creation

packages/sdk/js/src/index.ts

@@ -2,7 +2,8 @@ export * from "./client.js"
 export * from "./server.js"
 
 import { createOpencodeClient } from "./client.js"
-import { createOpencodeServer, ServerOptions } from "./server.js"
+import { createOpencodeServer } from "./server.js"
+import type { ServerOptions } from "./server.js"
 
 export async function createOpencode(options?: ServerOptions) {
   const server = await createOpencodeServer({