feat(package.json): add prepublishOnly script

Added a new "prepublishOnly" script to run tests and type checks before
publishing the package. This ensures code quality and prevents issues
from being published.

package.json

@@ -27,6 +27,7 @@
 		"typecheck": "tsc --noEmit",
 		"test": "bun test",
 		"release": "nr test && nr typecheck && nlx bumpp",
+		"prepublishOnly": "nr test && nr typecheck",
 		"lint": "eslint --cache .",
 		"format": "nr lint --fix"
 	},