Aggregated Agent Floor state (teams, agents, members)

Single-shot read for the Agent Floor 3D scene: your company's teams (with org-chart positions), non-completed agents (with a derived managerHumanId), and members. Open to any company member — admin and member get the exact same shape. 404 (not 403) when you have no company, so the route is invisible rather than merely blocked. The floor is open to every company.