Replace walkdir with ignore crate for directory traversal

The ignore crate provides better functionality by respecting .gitignore files and custom ignore patterns, making it more suitable for traversing project directories.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <[email protected]>

Author: Boshen

Cargo.lock

@@ -48,7 +48,7 @@ infinite_loop = "warn"
 
 [dependencies]
 serde_json = { version = "1.0", features = ["preserve_order"] }
-walkdir = "2"
+ignore = "0.4"
 
 [dev-dependencies]
 criterion2 = { version = "3", default-features = false }

Cargo.toml

@@ -3,7 +3,7 @@ use std::fs;
 use std::path::Path;
 use std::process;
 
-use walkdir::WalkDir;
+use ignore::WalkBuilder;
 
 #[allow(clippy::print_stderr)]
 fn main() {
@@ -17,8 +17,8 @@ fn main() {
     let mut sorted_files = 0;
     let mut errors = 0;
 
-    for entry in WalkDir::new(search_path)
-        .into_iter()
+    for entry in WalkBuilder::new(search_path)
+        .build()
         .filter_map(Result::ok)
         .filter(|e| e.file_name() == "package.json")
     {