fix(ui): gate preset catalog reuse on query readiness

- only reuse provider catalogs after /api/cliproxy/catalog has resolved

- avoid passing synthesized static fallback catalogs into preset application

- cover quick-setup and cliproxy add-account flows with regression tests

ui/tests/unit/components/setup/quick-setup-wizard.test.tsx

@@ -0,0 +1,129 @@
+import { beforeEach, describe, expect, it, vi } from 'vitest';
+import { render, screen, userEvent, waitFor } from '@tests/setup/test-utils';
+
+const hookState = vi.hoisted(() => ({
+  catalogData: undefined as
+    | {
+        catalogs: Record<
+          string,
+          {
+            provider: string;
+            displayName: string;
+            defaultModel: string;
+            models: Array<{ id: string; name: string }>;
+          }
+        >;
+      }
+    | undefined,
+}));
+
+const applyDefaultPresetMock = vi.hoisted(() => vi.fn());
+
+vi.mock('@/hooks/use-cliproxy', () => ({
+  useCliproxyAuth: () => ({
+    data: {
+      authStatus: [
+        {
+          provider: 'gemini',
+          displayName: 'Gemini',
+          authenticated: false,
+          accounts: [],
+        },
+      ],
+    },
+    refetch: vi.fn(),
+  }),
+  useCliproxyCatalog: () => ({
+    data: hookState.catalogData,
+  }),
+  useCreateVariant: () => ({
+    isPending: false,
+    mutateAsync: vi.fn(),
+  }),
+  useStartAuth: () => ({
+    isPending: false,
+    mutate: (_args: unknown, options?: { onSuccess?: (data: Record<string, unknown>) => void }) => {
+      options?.onSuccess?.({});
+    },
+  }),
+  useCancelAuth: () => ({
+    mutate: vi.fn(),
+  }),
+}));
+
+vi.mock('@/lib/preset-utils', () => ({
+  applyDefaultPreset: applyDefaultPresetMock,
+}));
+
+vi.mock('@/components/setup/wizard/steps/provider-step', () => ({
+  ProviderStep: ({ onSelect }: { onSelect: (providerId: string) => void }) => (
+    <button onClick={() => onSelect('gemini')}>choose-gemini</button>
+  ),
+}));
+
+vi.mock('@/components/setup/wizard/steps/auth-step', () => ({
+  AuthStep: ({ onStartAuth }: { onStartAuth: () => void }) => (
+    <button onClick={onStartAuth}>start-auth</button>
+  ),
+}));
+
+vi.mock('@/components/setup/wizard/steps/account-step', () => ({
+  AccountStep: () => <div>account-step</div>,
+}));
+
+vi.mock('@/components/setup/wizard/steps/variant-step', () => ({
+  VariantStep: () => <div>variant-step</div>,
+}));
+
+vi.mock('@/components/setup/wizard/steps/success-step', () => ({
+  SuccessStep: () => <div>success-step</div>,
+}));
+
+import { QuickSetupWizard } from '@/components/setup/wizard';
+
+describe('QuickSetupWizard preset catalog reuse', () => {
+  beforeEach(() => {
+    hookState.catalogData = undefined;
+    applyDefaultPresetMock.mockReset();
+    applyDefaultPresetMock.mockResolvedValue({ success: true, presetName: 'Gemini Pro' });
+  });
+
+  it('does not pass a synthesized static catalog before the catalog query resolves', async () => {
+    render(<QuickSetupWizard open onClose={vi.fn()} />);
+
+    await userEvent.click(screen.getByRole('button', { name: 'choose-gemini' }));
+    await userEvent.click(screen.getByRole('button', { name: 'start-auth' }));
+
+    await waitFor(() =>
+      expect(applyDefaultPresetMock).toHaveBeenCalledWith('gemini', undefined, undefined)
+    );
+  });
+
+  it('passes the fetched provider catalog once the query has resolved', async () => {
+    hookState.catalogData = {
+      catalogs: {
+        gemini: {
+          provider: 'gemini',
+          displayName: 'Gemini',
+          defaultModel: 'gemini-3.9-pro-preview',
+          models: [{ id: 'gemini-3.9-pro-preview', name: 'Gemini 3.9 Pro Preview' }],
+        },
+      },
+    };
+
+    render(<QuickSetupWizard open onClose={vi.fn()} />);
+
+    await userEvent.click(screen.getByRole('button', { name: 'choose-gemini' }));
+    await userEvent.click(screen.getByRole('button', { name: 'start-auth' }));
+
+    await waitFor(() =>
+      expect(applyDefaultPresetMock).toHaveBeenCalledWith(
+        'gemini',
+        undefined,
+        expect.objectContaining({
+          defaultModel: 'gemini-3.9-pro-preview',
+        })
+      )
+    );
+  });
+});