Lex Christopherson 4c97d59536 feat: add native Rust diff engine for edit tool ... Move the edit tool's hot-path diffing operations from JS to native Rust: - `normalizeForFuzzyMatch`: single-pass Unicode normalization (smart quotes, dashes, special spaces, trailing whitespace) - `fuzzyFindText`: exact-then-fuzzy substring search with UTF-16 index conversion for JS compatibility - `generateDiff`: unified diff generation using the `similar` crate (Myers' algorithm with optimizations) The Rust module at `native/crates/engine/src/diff.rs` exposes three napi functions. The TypeScript wrapper at `packages/native/src/diff/` follows the existing module pattern. `edit-diff.ts` now delegates to native implementations while keeping line-ending handling and file I/O in JS. 18 tests covering normalization, fuzzy matching (including UTF-16 index correctness with emoji/surrogate pairs), and diff generation. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>		2026-03-13 14:11:40 -06:00
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ast	feat: add native ast module with ast-grep structural search and rewrite	2026-03-13 13:02:29 -06:00
engine	feat: add native Rust diff engine for edit tool	2026-03-13 14:11:40 -06:00
grep	feat: Rust native engine scaffold with grep module	2026-03-13 12:21:09 -06:00