feat: compatibility with axallocator

[AsakuraMizu]

No description provided.

[Copilot]

Pull request overview

This PR adds compatibility with the axallocator crate by replacing the locally-defined allocator traits (BaseAllocator, ByteAllocator, PageAllocator, IdAllocator, AllocError, AllocResult) with re-exports from axallocator = "0.2". This enables the crate to interoperate with the broader axallocator ecosystem.

Changes:

• Replaces locally-defined traits and error types in src/lib.rs with pub use axallocator::{...} re-exports
• Adds BaseAllocator implementation for SlabByteAllocator to satisfy the trait requirement from axallocator
• Updates test assertions from assert_eq!(..., Err(...)) to assert!(matches!(...)) for improved ergonomics

Reviewed changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
src/lib.rs	Removes locally-defined trait/type definitions and replaces them with pub use axallocator::{...}
src/slab/slab_byte_allocator.rs	Adds BaseAllocator impl for SlabByteAllocator and imports it directly from axallocator
Cargo.toml	Adds axallocator = "0.2" as a required dependency; removes trailing blank lines
tests/integration_test.rs	Converts two assert_eq! error assertions to assert!(matches!(...)) form
tests/dma32_pages_test.rs	Consolidates two-step error assertions into a single assert!(matches!(...))

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