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>
Tenant-scoped fleet read: GET /api/fleet returns agent_hosts (host
metrics) each with their game_instances, plus a summary
(host/instance/online counts). FleetView lists host cards (status, CPU/
mem/disk/uptime/last-heartbeat) with their instances (game, state badge,
uptime); honest empty state -> Server page when no hosts. New 'Fleet'
sidebar nav item across all four game profiles, /fleet route. Store
follows the no-throw-on-fetch pattern (error state, never bricks). The
marketing hero made real from the live fleet tables.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>