Dependency Utility Scout

Invoked the first time a project's dependency graph needs to be turned into something the agent can search efficiently — and then on demand afterwards. It builds a utility inventory keyed by capability (e.g., string.normalize, collections.dedupe, date.diff) so that reuse-first and other Aparigraha skills can answer "is this already in our dependency graph?" in O(1) lookups instead of re-searching the world.