fix: add Node.js polyfills for webpack UMD build

Resolves webpack 5 build errors by adding polyfills for Node.js core
modules that are no longer included by default. This fixes the GitHub
workflow failure where the UMD build was failing with 'stream' module
resolution errors.

Changes:
- Added webpack resolve.fallback configuration for Node.js modules
- Installed stream-browserify, buffer, util, and url polyfill packages
- Added ESLint directives for webpack.config.js CommonJS usage
- UMD build now compiles successfully for browser environments

Fixes the error:
"Module not found: Error: Can't resolve 'stream' in helpers.ts"

The stream module import is needed for Node.js Readable stream detection
in helpers.ts but requires polyfills for browser compatibility.

Author: lukeocodes

package.json

@@ -76,6 +76,7 @@
     "@types/ws": "^8.5.10",
     "@typescript-eslint/eslint-plugin": "^8.7.0",
     "@typescript-eslint/parser": "^8.7.0",
+    "buffer": "^6.0.3",
     "cross-env": "^7.0.3",
     "dotenv": "^16.5.0",
     "eslint": "^8.57.1",
@@ -90,11 +91,14 @@
     "pretty-quick": "^3.1.3",
     "rimraf": "^3.0.2",
     "semantic-release-plugin-update-version-in-files": "^1.1.0",
+    "stream-browserify": "^3.0.0",
     "ts-jest": "^29.1.2",
     "ts-loader": "^8.0.11",
     "ts-node": "^10.9.1",
     "typedoc": "^0.22.16",
     "typescript": "^4.5.5",
+    "url": "^0.11.4",
+    "util": "^0.12.5",
     "webpack": "^5.69.1",
     "webpack-cli": "^4.9.2",
     "yaml-lint": "^1.7.0"

pnpm-lock.yaml

@@ -1,3 +1,6 @@
+/* eslint-env node */
+/* eslint-disable @typescript-eslint/no-var-requires, @typescript-eslint/no-require-imports */
+
 const path = require("path");
 
 module.exports = {
@@ -23,5 +26,11 @@ module.exports = {
   },
   resolve: {
     extensions: [".ts", ".js", ".json"],
+    fallback: {
+      stream: require.resolve("stream-browserify"),
+      buffer: require.resolve("buffer"),
+      util: require.resolve("util"),
+      url: require.resolve("url"),
+    },
   },
 };