Module seqstring 

SeqString - Arena or Globally Allocated String

Strings in Seq can be allocated from two sources:

1. Thread-local arena (fast, bulk-freed on strand exit)
2. Global allocator (persists across arena resets)

This allows fast temporary string creation during strand execution while maintaining safety for channel communication (clone to global).

Structs

SeqString

String that tracks its allocation source

Functions

arena_string

Create arena-allocated string (fast path for temporaries)

global_string

Create globally-allocated string (persists across arena resets)