🔑 feat: Implement TTL Mgmt. for In-Memory Keyv Stores

[danny-avila]

Summary

I implemented in-memory TTL management for the cache when Redis is not used, ensuring expired entries are properly cleared. Additionally, I added a DEBUG_MEMORY_CACHE environment variable to enable debugging of the memory cache.

The motivation for this was discovering that TTL was not being done for in-memory cache when using Keyv.

• Added functions getTTLStores, clearExpiredFromCache, and clearAllExpiredFromCache to manage cache TTLs when using in-memory cache.
• Implemented periodic cleanup intervals to clear expired cache entries every 30 seconds when Redis is not enabled.
• Added memory usage and cache entry logging when DEBUG_MEMORY_CACHE is enabled.
• Handled graceful shutdown by clearing intervals and performing final cleanup before process exit.
• Adjusted cache TTLs, changing the messages cache TTL from 5 minutes to 1 minute.

Change Type

• New feature (non-breaking change which adds functionality)

Checklist

• My code adheres to this project's style guidelines
• I have performed a self-review of my own code
• I have commented in any complex areas of my code
• My changes do not introduce new warnings
• Local unit tests pass with my changes