chore: add Node.js-specific notes for https agent usage in BaseRestClient and update import type in WebSocket client

Author: JJ-Cro

src/lib/BaseRestClient.ts

@@ -1,4 +1,6 @@
 import axios, { AxiosRequestConfig, AxiosResponse, Method } from 'axios';
+// NOTE: https.Agent is Node.js-only and not available in browser environments
+// Browser builds (via webpack) exclude this module - see webpack.config.js fallback settings
 import https from 'https';
 
 import { neverGuard } from './misc-util.js';
@@ -166,6 +168,9 @@ export abstract class BaseRestClient {
     };
 
     // If enabled, configure a https agent with keepAlive enabled
+    // NOTE: This is Node.js-only functionality. In browser environments, this code is skipped
+    // as the 'https' module is excluded via webpack fallback configuration.
+    // Browser connection pooling is handled automatically by the browser itself.
     if (this.options.keepAlive) {
       // Extract existing https agent parameters, if provided, to prevent the keepAlive flag from overwriting an existing https agent completely
       const existingHttpsAgent = this.globalRequestOptions.httpsAgent as

src/types/websockets/client.ts

@@ -1,4 +1,4 @@
-import { ClientRequestArgs } from 'http';
+import type { ClientRequestArgs } from 'http';
 import WebSocket from 'isomorphic-ws';
 
 /**