There is no Cache funciton! so Please Add Caching Feature!

There is no Cache funciton! so Please Add Caching Feature! where you can add Cache Expiry Time by Hours! Also do not forget to add a function if we excute that function than cache should be recreate!

thanks in advance !

The issue names no files, tests, or entry points. Start by reading the router's public API and request-dispatch flow to determine where caching would belong, then define the expiry and invalidation behavior before implementation. Done should include a documented caching API and tests for expiry and explicit recreation.

Written by the indexing model from the issue text.