chore: add files filter for publishing

Author: amio

package.json

@@ -26,6 +26,10 @@
   "engines": {
     "node": ">=24"
   },
+  "files": [
+    "bin/",
+    "src/"
+  ],
   "devDependencies": {
     "@types/node": "^24.10.9"
   }