Module storage 

Storage engine module.

This module will contain the persistent storage layer implementation. Future versions will include:

• Log-structured merge tree (LSM)
• B-Tree storage
• Memory-mapped file I/O
• Compression support

Structs

BTreeStorage

B-Tree storage (placeholder)

LsmTree

LSM-tree storage (placeholder)

Traits

StorageEngine

Storage engine trait (placeholder for v0.2+)