Cut virtualization from the app: out of scope

Ham Lab is meant to be lightweight; VMs, passthrough and their consoles
are too much. Removes the Virtualization tab, the incus package, the
/api/virt routes, the instance.* sensors and their alert default, the
virt-export command, the VGA console and the vendored spice-html5, and
VIRTUALIZATION.md. A saved instance-down rule is dropped on load.

Everything removed is kept, as it was, on the virtualization branch.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

web/src/Shell.tsx

@@ -15,7 +15,6 @@ import Hardware from './Hardware'
 import Network from './Network'
 import VPN from './VPN'
 import ZFS from './ZFS'
-import Virtualization from './Virtualization'
 import KVM from './KVM'
 import Files from './Files'
 import Top from './Top'
@@ -82,7 +81,6 @@ const GROUPS: Group[] = [
   { id: 'usage', label: 'Usage', icon: '▧' },
   { id: 'zfs', label: 'ZFS', icon: '⛁' },
   { id: 'docker', label: 'Docker', icon: DockerIcon },
-  { id: 'virt', label: 'Virtualization', icon: '▣' },
   { id: 'kvm', label: 'KVM', icon: '⌨' },
   { id: 'hardware', label: 'Hardware', icon: '⬡' },
   { id: 'updates', label: 'Updates', icon: '⇪' },
@@ -93,8 +91,8 @@ const GROUPS: Group[] = [
   { id: 'settings', label: 'Settings', icon: '⚙' },
 ]
 
-type View = 'terminal' | 'widgets' | 'docker' | 'virt' | 'alerts' | 'services' | 'jobs' | 'updates' | 'disks' | 'hardware' | 'network' | 'vpn' | 'zfs' | 'usage' | 'files' | 'procs' | 'machines' | 'kvm' | 'users' | 'settings'
-const VIEWS: View[] = ['terminal', 'widgets', 'docker', 'virt', 'alerts', 'services', 'jobs', 'updates', 'disks', 'hardware', 'network', 'vpn', 'zfs', 'usage', 'files', 'procs', 'machines', 'kvm', 'users', 'settings']
+type View = 'terminal' | 'widgets' | 'docker' | 'alerts' | 'services' | 'jobs' | 'updates' | 'disks' | 'hardware' | 'network' | 'vpn' | 'zfs' | 'usage' | 'files' | 'procs' | 'machines' | 'kvm' | 'users' | 'settings'
+const VIEWS: View[] = ['terminal', 'widgets', 'docker', 'alerts', 'services', 'jobs', 'updates', 'disks', 'hardware', 'network', 'vpn', 'zfs', 'usage', 'files', 'procs', 'machines', 'kvm', 'users', 'settings']
 const HUB_ONLY: View[] = ['machines', 'users', 'settings', 'alerts']
 
 // URL hash is the source of truth for where you are: #/<machine|hub>/<view>. Back and
@@ -331,7 +329,6 @@ export default function Shell({ me: hubMe, onLoggedOut }: { me: Me; onLoggedOut:
           {view === 'machines' && <Machines hub={hubMe} onChanged={loadMachines} onOpen={(n) => { switchMachine(n); setView('procs') }} />}
           {view === 'widgets' && <Gallery />}
           {view === 'docker' && <Docker />}
-          {view === 'virt' && <Virtualization />}
           {view === 'alerts' && <Alerts machines={machines.map((m) => m.name)} titleOf={(n) => titleOf(n === hubMe.host ? null : n, machines, hubMe.host)} />}
           {view === 'procs' && <Top />}
           {view === 'services' && <Services />}
@@ -369,7 +366,7 @@ export default function Shell({ me: hubMe, onLoggedOut }: { me: Me; onLoggedOut:
         <span>{machine ? `${title} · ` : ''}{me.version.startsWith('v') ? me.version : 'v' + me.version}</span>
         <span>up {fmtUptime(me.uptime)}</span>
         <span className="spacer" />
-        <span className="muted">{view === 'widgets' ? 'Widgets' : view === 'docker' ? 'Docker' : view === 'virt' ? 'Virtualization' : view === 'alerts' ? 'Alerts' : view === 'services' ? 'Services' : view === 'jobs' ? 'Jobs' : view === 'updates' ? 'Updates' : view === 'disks' ? 'Disks' : view === 'hardware' ? 'Hardware' : view === 'network' ? 'Network' : view === 'vpn' ? 'VPN' : view === 'zfs' ? 'ZFS' : view === 'usage' ? 'Usage' : view === 'files' ? 'Files' : view === 'procs' ? 'Processes' : view === 'machines' ? 'Machines' : view === 'kvm' ? 'KVM' : view === 'users' ? 'Users' : view === 'settings' ? 'Settings' : activeTerm ? activeTerm.name : ''}</span>
+        <span className="muted">{view === 'widgets' ? 'Widgets' : view === 'docker' ? 'Docker' : view === 'alerts' ? 'Alerts' : view === 'services' ? 'Services' : view === 'jobs' ? 'Jobs' : view === 'updates' ? 'Updates' : view === 'disks' ? 'Disks' : view === 'hardware' ? 'Hardware' : view === 'network' ? 'Network' : view === 'vpn' ? 'VPN' : view === 'zfs' ? 'ZFS' : view === 'usage' ? 'Usage' : view === 'files' ? 'Files' : view === 'procs' ? 'Processes' : view === 'machines' ? 'Machines' : view === 'kvm' ? 'KVM' : view === 'users' ? 'Users' : view === 'settings' ? 'Settings' : activeTerm ? activeTerm.name : ''}</span>
       </footer>
     </div>
   )