feat(vite_glob): add walk module with common-ancestor rerooting

Walk positive globs using wax, rerooting negative globs onto a common
ancestor so wax can prune entire directory subtrees via `.not()`. This
handles all prefix relationship cases (equal, ancestor, descendant,
unrelated) correctly.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: branchseer

Cargo.lock

@@ -9,11 +9,13 @@ rust-version.workspace = true
 
 [dependencies]
 path-clean = { workspace = true }
+rustc-hash = { workspace = true }
 thiserror = { workspace = true }
 vite_path = { workspace = true }
 wax = { workspace = true }
 
 [dev-dependencies]
+tempfile = { workspace = true }
 vite_str = { workspace = true }
 
 [lints]

crates/vite_glob/Cargo.toml

@@ -47,6 +47,18 @@ impl AnchoredGlob {
         Ok(Self { prefix, variant: variant.map(Glob::into_owned) })
     }
 
+    /// The invariant prefix directory of this glob.
+    #[must_use]
+    pub(crate) fn prefix(&self) -> &AbsolutePath {
+        &self.prefix
+    }
+
+    /// The variant (dynamic) portion of this glob, if any.
+    #[must_use]
+    pub(crate) const fn variant(&self) -> Option<&Glob<'static>> {
+        self.variant.as_ref()
+    }
+
     /// Check if an absolute path matches this anchored glob.
     #[must_use]
     pub fn is_match(&self, path: &AbsolutePath) -> bool {

crates/vite_glob/src/anchored.rs

@@ -2,4 +2,6 @@
 pub enum Error {
     #[error(transparent)]
     WaxBuild(#[from] wax::BuildError),
+    #[error(transparent)]
+    Walk(#[from] wax::walk::WalkError),
 }

crates/vite_glob/src/error.rs

@@ -1,5 +1,6 @@
 mod anchored;
 mod error;
+pub mod walk;
 
 #[expect(clippy::disallowed_types, reason = "wax::Glob::is_match requires std::path::Path")]
 use std::path::Path;