0.48.0

Performance

• Group hot fields in MinMax for cache locality
• Assorted micro-optimizations across sorted, unsorted, and minmax
• Replace unsafe windows access with array_windows (stable in Rust 1.94)
• Use sort_unstable_by_key in frequency; clarify doc comments

Bug Fixes

• Fix merge of single-element MinMax into empty MinMax

Refactoring

• Avoid redundant select_nth_unstable_by call in unsorted

Chores & Docs

• Set MSRV to 1.94
• Make clippy happy
• Refactor .claude hooks to typed hook objects
• Fix stale version, threshold signs, and unsafe block counts in docs

0.47.0...0.48.0