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/test/setup.ts

@@ -0,0 +1,23 @@
+import '@testing-library/jest-dom/vitest';
+
+// Mock window.matchMedia
+Object.defineProperty(window, 'matchMedia', {
+  writable: true,
+  value: vi.fn().mockImplementation((query: string) => ({
+    matches: false,
+    media: query,
+    onchange: null,
+    addListener: vi.fn(), // deprecated
+    removeListener: vi.fn(), // deprecated
+    addEventListener: vi.fn(),
+    removeEventListener: vi.fn(),
+    dispatchEvent: vi.fn(),
+  })),
+});
+
+// Mock ResizeObserver
+global.ResizeObserver = vi.fn().mockImplementation(() => ({
+  observe: vi.fn(),
+  unobserve: vi.fn(),
+  disconnect: vi.fn(),
+}));

web/src/test/test-utils.tsx

@@ -0,0 +1,37 @@
+import React from 'react';
+import type { ReactElement } from 'react';
+import { render } from '@testing-library/react';
+import type { RenderOptions } from '@testing-library/react';
+import { QueryClient, QueryClientProvider } from '@tanstack/react-query';
+import { ThemeProvider } from '../contexts/ThemeContext';
+
+// Custom render function that includes providers
+const AllTheProviders = ({ children }: { children: React.ReactNode }) => {
+  const queryClient = new QueryClient({
+    defaultOptions: {
+      queries: {
+        retry: false,
+        gcTime: 0,
+      },
+      mutations: {
+        retry: false,
+      },
+    },
+  });
+
+  return (
+    <QueryClientProvider client={queryClient}>
+      <ThemeProvider defaultTheme="light" storageKey="test-theme">
+        {children}
+      </ThemeProvider>
+    </QueryClientProvider>
+  );
+};
+
+const customRender = (
+  ui: ReactElement,
+  options?: Omit<RenderOptions, 'wrapper'>,
+) => render(ui, { wrapper: AllTheProviders, ...options });
+
+export * from '@testing-library/react';
+export { customRender as render };