chore(tsconfig): add example/index.ts

Author: tabcat

tsconfig.json

@@ -106,6 +106,6 @@
     // "skipDefaultLibCheck": true,                      /* Skip type checking .d.ts files that are included with TypeScript. */
     "skipLibCheck": true /* Skip type checking all .d.ts files. */
   },
-  "include": ["src", "test"],
+  "include": ["src", "test", "example/index.ts"],
   "exclude": ["dist", "vitest.config.ts"]
 }