#5487 "MCP: edit inventory group membership". Group membership decides which
hosts a group alert rule covers, and the MCP could only read it. The new
operator tool takes a group and lists to add and remove, each a target's
name or id or the Steward host it is linked to; an unknown name refuses the
whole change. It answers with the group's targets after and the alert rules
covering the group (whose per-host rules follow within a minute), and audits
as ansible.group.updated by "<user> via MCP", as the Inventory page does.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
