refactor(core): remove dead glob and walkdir dependencies (#595)

These dependencies were declared in kild-core/Cargo.toml but never
imported or used anywhere in the crate. Removing them reduces the
dependency tree and build time.

Closes #592

Author: Wirasm

Cargo.lock

@@ -17,8 +17,6 @@ sysinfo.workspace = true
 toml.workspace = true
 git2.workspace = true
 ignore.workspace = true
-glob.workspace = true
-walkdir.workspace = true
 tempfile.workspace = true
 uuid.workspace = true
 which.workspace = true