test: expand honest whole-repo coverage

Adds broad coverage across stores, hooks, and runtime utilities while switching `vitest.config.ts` to an explicit whole-repo include list. This turns the coverage report into a real repo-wide baseline instead of an imported-file subset.

src/stores/__tests__/preference-stores.test.ts

@@ -0,0 +1,92 @@
+import { beforeEach, describe, expect, it, vi } from 'vitest';
+import { getAllBoardCodes } from '../../constants/board-codes';
+
+describe('preference stores', () => {
+  beforeEach(() => {
+    vi.resetModules();
+    localStorage.clear();
+  });
+
+  it('useAllFeedFilterStore loads and persists the selected filter', async () => {
+    localStorage.setItem('5chan-all-feed-filter', 'nsfw');
+
+    const store = (await import('../use-all-feed-filter-store')).default;
+
+    expect(store.getState().filter).toBe('nsfw');
+
+    store.getState().setFilter('sfw');
+
+    expect(store.getState().filter).toBe('sfw');
+    expect(localStorage.getItem('5chan-all-feed-filter')).toBe('sfw');
+  });
+
+  it('useBoardsFilterStore restores board preferences and saves updates', async () => {
+    localStorage.setItem('5chan-boards-use-catalog', 'true');
+    localStorage.setItem('5chan-boards-filter', 'worksafe');
+
+    const store = (await import('../use-boards-filter-store')).default;
+
+    expect(store.getState().useCatalogLinks).toBe(true);
+    expect(store.getState().boardFilter).toBe('worksafe');
+
+    store.getState().setUseCatalogLinks(false);
+    store.getState().setBoardFilter('nsfw');
+
+    expect(store.getState().useCatalogLinks).toBe(false);
+    expect(store.getState().boardFilter).toBe('nsfw');
+    expect(localStorage.getItem('5chan-boards-use-catalog')).toBe('false');
+    expect(localStorage.getItem('5chan-boards-filter')).toBe('nsfw');
+  });
+
+  it('useCatalogStyleStore reads existing preferences and updates both settings', async () => {
+    localStorage.setItem('imageSize', 'Large');
+    localStorage.setItem('showOPComment', 'false');
+
+    const store = (await import('../use-catalog-style-store')).default;
+
+    expect(store.getState().imageSize).toBe('Large');
+    expect(store.getState().showOPComment).toBe(false);
+
+    store.getState().setImageSize('Small');
+    store.getState().setShowOPComment(true);
+
+    expect(store.getState().imageSize).toBe('Small');
+    expect(store.getState().showOPComment).toBe(true);
+    expect(localStorage.getItem('imageSize')).toBe('Small');
+    expect(localStorage.getItem('showOPComment')).toBe('true');
+  });
+
+  it('useBoardsBarVisibilityStore loads legacy keys and updates visibility settings', async () => {
+    const boardCodes = getAllBoardCodes();
+    localStorage.setItem('5chan-topbar-directories-visible', JSON.stringify([boardCodes[0]]));
+    localStorage.setItem('5chan-topbar-subscriptions-visible', JSON.stringify(['sub-1']));
+
+    const store = (await import('../use-boards-bar-visibility-store')).default;
+
+    expect(Array.from(store.getState().visibleDirectories)).toEqual([boardCodes[0]]);
+    expect(store.getState().showSubscriptionsInBoardsBar).toBe(true);
+
+    store.getState().toggleDirectory(boardCodes[1]);
+    expect(store.getState().visibleDirectories.has(boardCodes[1])).toBe(true);
+
+    store.getState().setDirectoryVisibility(boardCodes[0], false);
+    expect(store.getState().visibleDirectories.has(boardCodes[0])).toBe(false);
+
+    store.getState().setShowSubscriptionsInBoardsBar(false);
+    expect(store.getState().showSubscriptionsInBoardsBar).toBe(false);
+    expect(localStorage.getItem('5chan-boardsbar-subscriptions-visible')).toBe('false');
+  });
+
+  it('useBoardsBarVisibilityStore reinitializes from current storage keys', async () => {
+    const boardCodes = getAllBoardCodes();
+    const store = (await import('../use-boards-bar-visibility-store')).default;
+
+    localStorage.setItem('5chan-boardsbar-directories-visible', JSON.stringify([boardCodes[2], boardCodes[3]]));
+    localStorage.setItem('5chan-boardsbar-subscriptions-visible', JSON.stringify(true));
+
+    store.getState().initialize();
+
+    expect(Array.from(store.getState().visibleDirectories)).toEqual([boardCodes[2], boardCodes[3]]);
+    expect(store.getState().showSubscriptionsInBoardsBar).toBe(true);
+  });
+});