Module pool 

Memory pooling for frequent allocations

This module provides memory pools for common allocation patterns:

• Block buffer pool (reuse Bytes allocations)
• CID string pool (deduplicate strings)
• IPLD node pool

Memory pooling reduces allocator pressure by reusing existing allocations.

Structs

BytesPool

A pool of reusable byte buffers

CidStringPool

A pool for CID strings to reduce duplication

PoolStats

Statistics for a memory pool

Functions

freeze_bytes

Helper to convert BytesMut to Bytes efficiently

global_bytes_pool

Get the global bytes pool

global_cid_string_pool

Get the global CID string pool