06e832fca1
Self-service host removal. DELETE /api/fleet/hosts/:id (server.manage, tenant-guarded): refuses while the host is 'connected' (409 — a live agent re-registers on its next heartbeat, stop it first), deletes the host's game_instances explicitly (FK is SET NULL, would otherwise orphan them; instance_stats cascade), and clears the legacy server_connections row if it was the license's last host. Fleet view: offline host cards get a Remove button with inline confirm + toast. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>