fix: remove unused code

* Update version to 2025.0.3, and remove unused code
* Upgrade chai to 5.3.1
* Streamline HTTP request method usage

src/net/http/HttpRequests.ts

@@ -31,7 +31,7 @@ export class HttpRequests {
     const abortSignal = abortController.signal;
     const requestOptions: RequestInit = {
       headers: this._baseHeaders,
-      method: HttpMethod[method], // Convert enum to string
+      method,
       signal: abortSignal,
       ...options
     };