refactor: HL EVM signing via sonirico/go-hyperliquid SDK

hl_helper/node_modules/ethers/src.ts/providers/ws-browser.ts

@@ -0,0 +1,11 @@
+
+function getGlobal(): any {
+  if (typeof self !== 'undefined') { return self; }
+  if (typeof window !== 'undefined') { return window; }
+  if (typeof global !== 'undefined') { return global; }
+  throw new Error('unable to locate global object');
+};
+
+const _WebSocket = getGlobal().WebSocket;
+
+export { _WebSocket as WebSocket };