fix rspack production mode by telling swc that it's a module

Author: velzie

packages/scramjet/packages/core/package.json

@@ -9,8 +9,8 @@
 		"url": "https://github.com/MercuryWorkshop/scramjet"
 	},
 	"scripts": {
-		"build": "rspack build --mode production",
-		"build:types": "rslib build && rm -rf dist/temp",
+		"build": "cd ../.. && rspack build --mode production",
+		"build:types": "cd ../.. && rslib build && rm -rf packages/core/dist/temp",
 		"build:all": "npm run build && npm run build:types",
 		"rewriter:build": "cd rewriter/wasm/ && bash build.sh && cd ../../",
 		"dev": "node server.js",

packages/scramjet/rspack.config.ts

@@ -130,6 +130,15 @@ const createScramjetConfig = (options) => {
 					/Critical dependency: the request of a dependency is an expression/,
 			},
 		],
+		optimization: {
+			minimizer: [
+				new rspack.SwcJsMinimizerRspackPlugin({
+					minimizerOptions: {
+						module: output.libraryTarget === "module",
+					},
+				}),
+			],
+		},
 		...extraConfig,
 	});
 };