APM support into HVE Core

It would be valuable for HVE Core to support or integrate with APM (Agent Package Manager) as a first-class package and distribution mechanism for agents, prompts, instructions, skills, and collections.

APM: https://github.com/microsoft/apm

Start by reviewing the HVE Core repository alongside the linked APM repository to identify existing package and distribution entry points. Define the scope of first-class support for agents, prompts, instructions, skills, and collections, then document how completion will be validated across those artifact types.

Written by the indexing model from the issue text.