Remove deprecated post-build script

Author: Gigabyte5671

package.json

@@ -7,7 +7,6 @@
 	"type": "module",
 	"scripts": {
 		"build": "tsc",
-		"postbuild": "node post-build.js",
 		"test-server": "cd test-server && npm run dev",
 		"test": "npm run build && npx playwright test"
 	},