refactor(web/test): default svelte-query mock in vitest.setup; remove from 34 files (B3)

web/src/routes/library/albums/page.test.ts

@@ -40,11 +40,6 @@ vi.mock('$lib/api/likes', () => ({
 // AlbumCard renders LikeButton, which calls useQueryClient() to get the
 // cache for invalidation. The page test isn't wrapped in a QueryClientProvider,
 // so we stub useQueryClient with a noop client.
-vi.mock('@tanstack/svelte-query', async (orig) => {
-  const actual = (await orig()) as Record<string, unknown>;
-  return { ...actual, useQueryClient: () => ({}) };
-});
-
 import Page from './+page.svelte';
 
 describe('/library/albums', () => {

web/src/routes/library/artists/page.test.ts

@@ -33,11 +33,6 @@ vi.mock('$lib/api/likes', () => ({
   likeEntity: vi.fn().mockResolvedValue(undefined),
   unlikeEntity: vi.fn().mockResolvedValue(undefined)
 }));
-vi.mock('@tanstack/svelte-query', async (orig) => {
-  const actual = (await orig()) as Record<string, unknown>;
-  return { ...actual, useQueryClient: () => ({ invalidateQueries: vi.fn() }) };
-});
-
 import Page from './+page.svelte';
 
 describe('/library/artists', () => {

web/src/routes/library/hidden/hidden.test.ts

@@ -2,11 +2,6 @@ import { afterEach, describe, expect, test, vi } from 'vitest';
 import { render, screen, fireEvent } from '@testing-library/svelte';
 import { mockQuery } from '../../../test-utils/query';
 
-vi.mock('@tanstack/svelte-query', async (orig) => {
-  const actual = (await orig()) as Record<string, unknown>;
-  return { ...actual, useQueryClient: () => ({ invalidateQueries: vi.fn() }) };
-});
-
 vi.mock('$lib/api/quarantine', () => ({
   createMyQuarantineQuery: vi.fn(),
   unflagTrack: vi.fn().mockResolvedValue(undefined)

web/src/routes/library/liked/liked.test.ts

@@ -17,11 +17,6 @@ vi.mock('$lib/api/likes', () => ({
   unlikeEntity: vi.fn()
 }));
 
-vi.mock('@tanstack/svelte-query', async (orig) => {
-  const actual = (await orig()) as Record<string, unknown>;
-  return { ...actual, useQueryClient: () => ({}) };
-});
-
 vi.mock('$lib/api/client', () => ({ api: { get: vi.fn() } }));
 vi.mock('$lib/player/store.svelte', () => ({
   playQueue: vi.fn(), enqueueTrack: vi.fn(), enqueueTracks: vi.fn()