fix(ui): reuse cached cliproxy catalogs for presets

- let applyDefaultPreset accept a caller-provided provider catalog

- pass cached catalog data from cliproxy and quick-setup flows

- add regression coverage for skipping the extra catalog fetch

ui/src/components/account/add-account-dialog.tsx

@@ -29,6 +29,7 @@ import { Loader2, ExternalLink, User, Download, Copy, Check, ShieldAlert } from
 import { useKiroImport } from '@/hooks/use-cliproxy';
 import { useCliproxyAuthFlow } from '@/hooks/use-cliproxy-auth-flow';
 import { applyDefaultPreset } from '@/lib/preset-utils';
+import type { CliproxyProviderCatalog } from '@/lib/api-client';
 import { AccountSafetyWarningCard } from '@/components/account/account-safety-warning-card';
 import { AntigravityResponsibilityChecklist } from '@/components/account/antigravity-responsibility-checklist';
 import {
@@ -56,6 +57,7 @@ interface AddAccountDialogProps {
   onClose: () => void;
   provider: string;
   displayName: string;
+  catalog?: CliproxyProviderCatalog;
   /** Whether this is the first account being added (shows different toast message) */
   isFirstAccount?: boolean;
 }
@@ -74,6 +76,7 @@ export function AddAccountDialog({
   onClose,
   provider,
   displayName,
+  catalog,
   isFirstAccount = false,
 }: AddAccountDialogProps) {
   const [nickname, setNickname] = useState('');
@@ -244,7 +247,7 @@ export function AddAccountDialog({
         wasAuthenticatingRef.current = false;
         const applyPresetAndClose = async () => {
           try {
-            const result = await applyDefaultPreset(provider);
+            const result = await applyDefaultPreset(provider, undefined, catalog);
             if (result.success && result.presetName && isFirstAccount) {
               toast.success(`Applied "${result.presetName}" preset`);
             }
@@ -331,7 +334,7 @@ export function AddAccountDialog({
     wasAuthenticatingRef.current = true;
     kiroImportMutation.mutate(undefined, {
       onSuccess: async () => {
-        const result = await applyDefaultPreset('kiro');
+        const result = await applyDefaultPreset('kiro', undefined, catalog);
         if (result.success && result.presetName && isFirstAccount) {
           toast.success(`Applied "${result.presetName}" preset`);
         }

ui/src/components/setup/wizard/index.tsx

@@ -101,7 +101,11 @@ export function QuickSetupWizard({ open, onClose }: QuickSetupWizardProps) {
       {
         onSuccess: async (data) => {
           if (isFirstAccount) {
-            const result = await applyDefaultPreset(selectedProvider);
+            const result = await applyDefaultPreset(
+              selectedProvider,
+              undefined,
+              catalogs[selectedProvider]
+            );
             if (result.success && result.presetName) {
               toast.success(`Applied "${result.presetName}" preset`);
             } else if (!result.success) {

ui/src/lib/preset-utils.ts

@@ -3,6 +3,7 @@
  * Shared functions for applying default presets to provider settings
  */
 
+import type { CliproxyProviderCatalog } from './api-client';
 import { MODEL_CATALOGS } from './model-catalogs';
 import { buildUiCatalogs } from './model-catalogs';
 import { CLIPROXY_DEFAULT_PORT } from './default-ports';
@@ -26,7 +27,11 @@ async function fetchEffectiveApiKey(): Promise<string> {
   }
 }
 
-async function fetchProviderCatalog(provider: string) {
+async function fetchProviderCatalog(provider: string, catalog?: CliproxyProviderCatalog) {
+  if (catalog) {
+    return catalog;
+  }
+
   try {
     const response = await fetch('/api/cliproxy/catalog');
     if (!response.ok) {
@@ -52,18 +57,20 @@ async function fetchProviderCatalog(provider: string) {
  */
 export async function applyDefaultPreset(
   provider: string,
-  port?: number
+  port?: number,
+  catalog?: CliproxyProviderCatalog
 ): Promise<{ success: boolean; presetName?: string }> {
-  const catalog = await fetchProviderCatalog(provider);
+  const resolvedCatalog = await fetchProviderCatalog(provider, catalog);
-  if (!catalog) return { success: false };
+  if (!resolvedCatalog) return { success: false };
 
   const defaultModelEntry =
-    catalog.models.find((model) => model.id === catalog.defaultModel) || catalog.models[0];
+    resolvedCatalog.models.find((model) => model.id === resolvedCatalog.defaultModel) ||
+    resolvedCatalog.models[0];
   const mapping = defaultModelEntry?.presetMapping || {
-    default: catalog.defaultModel,
+    default: resolvedCatalog.defaultModel,
-    opus: catalog.defaultModel,
+    opus: resolvedCatalog.defaultModel,
-    sonnet: catalog.defaultModel,
+    sonnet: resolvedCatalog.defaultModel,
-    haiku: catalog.defaultModel,
+    haiku: resolvedCatalog.defaultModel,
   };
 
   // Fetch effective API key (respects user customization)
@@ -89,7 +96,7 @@ export async function applyDefaultPreset(
     });
     return {
       success: res.ok,
-      presetName: defaultModelEntry?.name || catalog.defaultModel,
+      presetName: defaultModelEntry?.name || resolvedCatalog.defaultModel,
     };
   } catch {
     return { success: false };

ui/src/pages/cliproxy.tsx

@@ -561,6 +561,7 @@ export function CliproxyPage() {
         onClose={() => setAddAccountProvider(null)}
         provider={addAccountProvider?.provider || ''}
         displayName={addAccountProvider?.displayName || ''}
+        catalog={addAccountProvider?.provider ? catalogs[addAccountProvider.provider] : undefined}
         isFirstAccount={addAccountProvider?.isFirstAccount || false}
       />
     </div>

ui/tests/unit/ui/lib/preset-utils.test.ts

@@ -58,6 +58,31 @@ describe('claude preset utils', () => {
     });
   });
 
+  it('skips catalog fetch when the caller already has the provider catalog cached', async () => {
+    const fetchMock = vi
+      .fn()
+      .mockResolvedValueOnce({
+        ok: true,
+        json: async () => ({ apiKey: { value: 'managed-key' } }),
+      })
+      .mockResolvedValueOnce({ ok: true });
+
+    vi.stubGlobal('fetch', fetchMock);
+
+    const result = await applyDefaultPreset('claude', undefined, MODEL_CATALOGS.claude);
+
+    expect(result).toEqual({ success: true, presetName: 'Claude Sonnet 4.6' });
+    expect(fetchMock).toHaveBeenCalledTimes(2);
+    expect(fetchMock).toHaveBeenNthCalledWith(1, '/api/settings/auth/tokens/raw');
+    expect(fetchMock).toHaveBeenNthCalledWith(
+      2,
+      '/api/settings/claude',
+      expect.objectContaining({
+        method: 'PUT',
+      })
+    );
+  });
+
   it('builds UI catalogs from upstream provider models without requiring static dropdown edits', () => {
     const liveCatalogs = {
       gemini: {