v2.0.0

Added

• make tokio optional via 'async' feature gate

Fixed

• feature-gate async example to support no-default-features builds
• update tests to support conditional cleaner startup and improve robustness

Other

• apply rustfmt to the entire codebase
• implement automated versioning and crates.io publishing via release-plz and OIDC
• final README formatting and cleanup
• apply clippy suggestions for idiomatic code (collapsible_if, or_default)
• optimize hashing with BuildHasher::hash_one and resolve black_box deprecation
• update rust-version to 1.93 and update CI triggers
• add sync and async examples and refine façade for Borrow support
• implement u32 indices and RwLock with batching for concurrent throughput
• update README with record performance results and index-based arena details
• implement Borrow support for zero-allocation cache lookups
• implement index-based arena for LRU/FIFO to eliminate key cloning
• modernize CI pipeline and update documentation with performance results
• implement sharded generic architecture and static dispatch
• optimize LRU/FIFO to O(1) and add performance benchmarks

v1.0.0

fix(Readme): Update Readme