chore: remove unused test-validation file and clean up package.json

[publish]

Author: Marvin Zhang

package.json

@@ -62,6 +62,5 @@
     "better-sqlite3": "^11.10.0",
     "dotenv": "16.5.0",
     "tsx": "^4.0.0"
-  },
-  "packageManager": "[email protected]+sha512.37ebf1a5c7a30d5fabe0c5df44ee8da4c965ca0c5af3dbab28c3a1681b70a256218d05c81c9c0dcf767ef6b8551eb5b960042b9ed4300c59242336377e01cfad"
+  }
 }