fix: CVE-2026-40073 security vulnerability

Automated dependency upgrade by Orbis Security AI

Author: orbisai0security

package.json

@@ -103,5 +103,8 @@
       "vite": "^6.4.1",
       "esbuild": "^0.27.2"
     }
+  },
+  "dependencies": {
+    "@sveltejs/kit": "2.57.1"
   }
 }