feat: Add Wild Central web app (Central-only UI)

Extract Central pages from the wild-cloud web app into a standalone
React app for Wild Central. Includes:

- Central overview, DNS, DHCP, Firewall, VPN, Ingress, CrowdSec pages
- Simplified sidebar with Central-only navigation
- Branding updated to "Wild Central"
- All Cloud-specific pages, components, hooks, and API services removed
- TypeScript type-check and production build pass

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

web/src/router/routes.tsx

@@ -0,0 +1,41 @@
+import { Navigate } from 'react-router';
+import type { RouteObject } from 'react-router';
+import { CentralLayout } from './CentralLayout';
+import { NotFoundPage } from './pages/NotFoundPage';
+import { CentralPage } from './pages/CentralPage';
+import { DhcpPage } from './pages/DhcpPage';
+import { FirewallPage } from './pages/FirewallPage';
+import { IngressProxyPage } from './pages/IngressProxyPage';
+import { DnsPage } from './pages/DnsPage';
+import { CrowdSecPage } from './pages/CrowdSecPage';
+import { VpnPage } from './pages/VpnPage';
+import { CloudflarePage } from './pages/CloudflarePage';
+import { DdnsPage } from './pages/DdnsPage';
+import { LanDnsPage } from './pages/LanDnsPage';
+
+export const routes: RouteObject[] = [
+  {
+    path: '/',
+    element: <Navigate to="/central" replace />,
+  },
+  {
+    path: '/central',
+    element: <CentralLayout />,
+    children: [
+      { index: true, element: <CentralPage /> },
+      { path: 'cloudflare', element: <CloudflarePage /> },
+      { path: 'firewall', element: <FirewallPage /> },
+      { path: 'dhcp', element: <DhcpPage /> },
+      { path: 'crowdsec', element: <CrowdSecPage /> },
+      { path: 'ingress', element: <IngressProxyPage /> },
+      { path: 'dns', element: <DnsPage /> },
+      { path: 'ddns', element: <DdnsPage /> },
+      { path: 'lan-dns', element: <LanDnsPage /> },
+      { path: 'vpn', element: <VpnPage /> },
+    ],
+  },
+  {
+    path: '*',
+    element: <NotFoundPage />,
+  },
+];