fix(clippy): allow dead_code on find_node_dirs_sync for non-macOS targets

The function is only called from `#[cfg(target_os = "macos")]` blocks
in `get_global_node_modules_paths` (Homebrew / nvm / volta / fnm
fallbacks) and from inline `#[cfg(test)] mod tests` entries.

On Linux/Windows clippy sees no production caller and trips
`-D dead_code` under `cargo clippy --workspace --all-features --
-D warnings` (CI's invocation). Gating the function itself to
`target_os = "macos"` would break the inline tests on Linux.
`#[allow(dead_code)]` is the right tool: keeps the symbol visible
on every target while clippy treats it as intentionally unused.

Surfaced by CI run 26332596376 on PR #80; local clippy on macOS
host passes either way because the macOS callers are live there.

Assisted-by: Claude Code:claude-opus-4-7

Author: mikolalysenko

crates/socket-patch-core/src/crawlers/npm_crawler.rs

@@ -197,6 +197,13 @@ pub fn parse_bun_bin_output(stdout: &str) -> Option<String> {
 ///
 /// Each segment is either a literal directory name or `"*"` which matches any
 /// directory entry. Symlinks are followed via `std::fs::metadata`.
+///
+/// Production callers live inside `#[cfg(target_os = "macos")]` blocks of
+/// `get_global_node_modules_paths` (Homebrew/nvm/volta/fnm fallbacks).
+/// `#[allow(dead_code)]` keeps the function visible to the inline
+/// `#[cfg(test)] mod tests` callers on every target without tripping
+/// `-D dead_code` on non-macOS clippy runs.
+#[allow(dead_code)]
 fn find_node_dirs_sync(base: &Path, segments: &[&str]) -> Vec<PathBuf> {
     if !base.is_dir() {
         return Vec::new();