App Router ina tabaka kadhaa za cache zinazolingana. Kuelewa zao kunaeleza kwa nini data wakati mwingine inaonekana kuwa stale na jinsi ya kudhibiti upya.
Cache nne
1. Request Memoization — dedupes identical fetch() calls within ONE render pass
2. Data Cache — persists fetch() results across requests & deploys (server)
3. Full Route Cache — caches the rendered HTML/RSC of static routes (build time)
4. Router Cache — client-side cache of visited routes (in the browser, per session)
1. Request Memoization
user = ();
