feat: Implement a configurable cache eviction policy

[helloscoopa]

Problem: Right now, if the cache grows too large, there's no mechanism (apart from TTL-based eviction) to automatically remove entries. Memory could be exhausted in long-running applications.

Improvement: Implement configurable cache eviction policies like Least Recently Used (LRU), Least Frequently Used (LFU), to enforce eviction. This would automatically remove older or less frequently used entries to manage memory more efficiently.