[Feature] Implementing Stream Types via RPC in Rust

### Is there an existing issue for this?

- [x] I have searched the existing issues

### Description

**Description:**

[Documentation](https://developers.cloudflare.com/workers/runtime-apis/rpc/#readablestream-writeablestream-request-and-response) states "You can send and receive [ReadableStream](https://developers.cloudflare.com/workers/runtime-apis/streams/readablestream/), [WriteableStream](https://developers.cloudflare.com/workers/runtime-apis/streams/writablestream/), [Request](https://developers.cloudflare.com/workers/runtime-apis/request/), and [Response](https://developers.cloudflare.com/workers/runtime-apis/response/) using RPC methods". How can I implement these stream types via RPC methods in Rust?

**Expectations:**

- Detailed code example showing how to create a ReadableStream in Rust RPC
- Demonstrate how to send and receive streams between client and server
- Provide a complete working example with server and client code

**Related Issues:**

No access to Env in #[wasm_bindgen] RPC functions #720