refactor(workspace): remove unused PackageQueryArgs accessor methods

Remove is_recursive(), is_workspace_root(), and filter() accessors
that were only used by vp exec's root-exclusion logic, which is being
removed in vite-plus.

Author: fengmk2

crates/vite_workspace/src/package_filter.rs

@@ -245,21 +245,6 @@ Match packages by name, directory, or glob pattern.
 }
 
 impl PackageQueryArgs {
-    /// Whether `--recursive` / `-r` was set.
-    pub fn is_recursive(&self) -> bool {
-        self.recursive
-    }
-
-    /// Whether `--workspace-root` / `-w` was set.
-    pub fn is_workspace_root(&self) -> bool {
-        self.workspace_root
-    }
-
-    /// The `--filter` / `-F` values (possibly empty).
-    pub fn filter(&self) -> &[Str] {
-        &self.filter
-    }
-
     /// Convert CLI arguments into an opaque [`PackageQuery`].
     ///
     /// `package_name` is the optional package name from a `package#task` specifier.