Add WebSocket support (#12)

frontend/sync-client/webpack.config.js

@@ -20,7 +20,7 @@ const common = {
 		minimize: false
 	},
 	resolve: {
-		extensions: [".ts"],
+		extensions: [".ts", ".js"],
 		alias: {
 			root: __dirname,
 			src: path.resolve(__dirname, "src")
@@ -42,6 +42,11 @@ module.exports = [
 				type: "umd"
 			},
 			globalObject: "this"
+		},
+		resolve: {
+			fallback: {
+				ws: false // Exclude `ws` from the browser bundle
+			}
 		}
 	}),
 	merge(common, {
@@ -50,6 +55,10 @@ module.exports = [
 			path: path.resolve(__dirname, "dist"),
 			filename: "sync-client.node.js",
 			libraryTarget: "commonjs2"
+		},
+		externals: {
+			bufferutil: "bufferutil",
+			"utf-8-validate": "utf-8-validate" // required for ws: https://github.com/websockets/ws/issues/2245#issuecomment-2250318733
 		}
 	})
 ];