feat: prioritize new gemini image models in frontend

frontend/src/components/account/__tests__/BulkEditAccountModal.spec.ts

@@ -18,6 +18,10 @@ vi.mock('@/api/admin', () => ({
   }
 }))
 
+vi.mock('@/api/admin/accounts', () => ({
+  getAntigravityDefaultModelMapping: vi.fn()
+}))
+
 vi.mock('vue-i18n', async () => {
   const actual = await vi.importActual<typeof import('vue-i18n')>('vue-i18n')
   return {