Function fetch

src/fl/net/http/fetch.cpp.hpp:48–51

Use existing WASM fetch infrastructure

// Use existing WASM fetch infrastructure
void fetch(const fl::string& url, const FetchCallback& callback) {
    // Use the existing WASM fetch implementation - no conversion needed since both use fl::response
    ::fl::wasm_fetch.get(url).response(callback);
}

// Internal helper to execute a fetch request and return a promise
fl::task::Promise<Response> execute_fetch_request(const fl::string& url, const FetchOptions& request) {