Memory

Modules: memory/allocation, memory/mapped_region, memory/pool_region, memory/stack_region

These modules expose allocation-budget helpers and region-style memory helpers used by higher-level runtime and application code.

Type	Module	Purpose
`AllocError`	`memory/allocation`	Allocation failure details for `Result` APIs
`MemoryStats`	`memory/allocation`	Current runtime memory limit, usage, peak, remaining budget, and failures
`MappedRegion`	`memory/mapped_region`	Memory-mapped allocation region
`PoolRegion`	`memory/pool_region`	Pool-backed allocation region
`StackRegion`	`memory/stack_region`	Stack-like allocation region

See Memory Model for conceptual background.