Update vitest.config.ts with testTimeout: 15000 in test configuration

Author: Yigtwxx

vitest.config.ts

@@ -13,11 +13,12 @@ export default {
 
     globalSetup: './src/tests/vitest.setup.ts',
     teardownTimeout: 500,
+    testTimeout: 15000,
   },
   server: {
     deps: {
       // Externalize @horizon-rs/language-guesser to avoid import assertion issues with vitest 4
       external: ['@horizon-rs/language-guesser'],
     },
   },
-}
+}