fix(*): correct packages type for commonjs build

.gitignore

@@ -34,3 +34,6 @@
 !/pkg/*/pnpm-lock.yaml
 !/pkg/*/tsconfig.json
 !/pkg/*/.npmignore
+
+# build script
+!/fixup.sh

.npmignore

@@ -10,3 +10,4 @@
 !/build/cjs/src/**/*.js
 !/build/cjs/src/**/*.js.map
 !/build/cjs/src/**/*.d.ts
+!/build/cjs/package.json

fixup.sh

@@ -0,0 +1,9 @@
+#!/bin/env bash
+
+for f in pkg/*; do
+	cat <<EOF > ${f}/build/cjs/package.json
+{
+	"type": "commonjs"
+}
+EOF
+done

package.json

@@ -16,7 +16,7 @@
 		"clean": "rm -rf .coverage && pnpm -F @slangroom/* exec -- rm -rf build",
 		"build": "pnpm build:esm",
 		"build:dual": "pnpm build:esm && pnpm build:cjs",
-		"build:cjs": "pnpm -F @slangroom/* exec tsc --outDir build/cjs --module commonjs",
+		"build:cjs": "pnpm -F @slangroom/* exec tsc --outDir build/cjs --module commonjs && ./fixup.sh",
 		"build:esm": "pnpm -F @slangroom/* exec tsc --outdir build/esm --module node16",
 		"build-all": "pnpm build"
 	},