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## Problem Running some memory profiling with high concurrent request rate shows seemingly some memory fragmentation. ## Summary of changes Eventually, we will want to separate global memory (caches) from local memory (per connection handshake and per passthrough). Using a string interner for project info cache helps reduce some of the fragmentation of the global cache by having a single heap dedicated to project strings, and not scattering them throughout all a requests. At the same time, the interned key is 4 bytes vs the 24 bytes that `SmolStr` offers. Important: we should only store verified strings in the interner because there's no way to remove them afterwards. Good for caching responses from console.