feat(Dashboard): 重构仪表板功能组件和逻辑

- 新增 dashboardFeatures.ts 和 useDashboard.ts 文件，封装仪表板功能的解析和状态管理逻辑。
- 更新 Dashboard 组件，使用 useDashboard 钩子简化可见工具和最近使用工具的处理。
- 添加仪表板功能的单元测试，确保功能正确性。
- 更新 README.md，移除不再使用的 ToolCard 组件说明。

src/pages/Dashboard/__tests__/dashboardFeatures.test.ts

@@ -0,0 +1,49 @@
+import { describe, it, expect, vi, beforeEach } from 'vitest';
+import * as featureConfig from '@/config/features';
+import { resolveDashboardFeatures } from '../dashboardFeatures';
+
+describe('resolveDashboardFeatures', () => {
+  beforeEach(() => {
+    vi.restoreAllMocks();
+  });
+
+  it('应按 keys 顺序返回可见工具，并排除 dashboard', () => {
+    const items = resolveDashboardFeatures(['jwt', 'timestamp'], ['dashboard', 'timestamp', 'jwt']);
+
+    expect(items.map((item) => item.key)).toEqual(['jwt', 'timestamp']);
+    expect(items.map((item) => item.feature.label)).toEqual(['JWT 解析', '时间戳']);
+  });
+
+  it('缺少 themeColorKey 但有 icon 的工具仍应显示', () => {
+    const originalGetFeatureByKey = featureConfig.getFeatureByKey;
+    vi.spyOn(featureConfig, 'getFeatureByKey').mockImplementation((key) => {
+      const feature = originalGetFeatureByKey(key);
+      if (key === 'timestamp' && feature) {
+        return { ...feature, themeColorKey: undefined };
+      }
+      return feature;
+    });
+
+    const items = resolveDashboardFeatures(['timestamp'], ['dashboard', 'timestamp']);
+
+    expect(items.map((item) => item.key)).toEqual(['timestamp']);
+  });
+
+  it('应过滤不在 visiblePages 中的工具', () => {
+    const items = resolveDashboardFeatures(['jwt', 'timestamp'], ['dashboard', 'timestamp']);
+
+    expect(items.map((item) => item.key)).toEqual(['timestamp']);
+  });
+
+  it('visiblePages 无匹配工具时应返回空列表', () => {
+    const items = resolveDashboardFeatures(['jwt', 'timestamp'], ['dashboard']);
+
+    expect(items).toEqual([]);
+  });
+
+  it('应过滤缺少 icon 的工具', () => {
+    const items = resolveDashboardFeatures(['dashboard', 'timestamp'], ['dashboard', 'timestamp']);
+
+    expect(items.map((item) => item.key)).toEqual(['timestamp']);
+  });
+});

src/pages/Dashboard/__tests__/index.test.tsx

@@ -0,0 +1,100 @@
+import { render, screen } from '@testing-library/react';
+import userEvent from '@testing-library/user-event';
+import { describe, it, expect, vi, beforeEach } from 'vitest';
+import { getFeatureByKey } from '@/config/features';
+import type { DashboardFeatureItem } from '../useDashboard';
+import Index from '../index';
+
+const mockNavigateTo = vi.fn();
+const mockUseDashboard = vi.fn();
+
+vi.mock('../useDashboard', () => ({
+  useDashboard: () => mockUseDashboard(),
+}));
+
+function buildFeatureItem(key: 'timestamp' | 'jwt'): DashboardFeatureItem {
+  const feature = getFeatureByKey(key)!;
+  return {
+    key,
+    feature: feature as DashboardFeatureItem['feature'],
+  };
+}
+
+describe('Dashboard 页面', () => {
+  beforeEach(() => {
+    vi.clearAllMocks();
+    mockUseDashboard.mockReturnValue({
+      visibleFeatures: [buildFeatureItem('timestamp'), buildFeatureItem('jwt')],
+      recentFeatures: [],
+      showRecent: false,
+      navigateTo: mockNavigateTo,
+    });
+  });
+
+  it('应渲染全部工具网格', () => {
+    render(<Index />);
+
+    expect(screen.getByText('全部工具')).toBeInTheDocument();
+    expect(screen.getByRole('button', { name: '时间戳' })).toBeInTheDocument();
+    expect(screen.getByRole('button', { name: 'JWT 解析' })).toBeInTheDocument();
+  });
+
+  it('点击工具卡片应触发 navigateTo', async () => {
+    const user = userEvent.setup();
+    render(<Index />);
+
+    await user.click(screen.getByRole('button', { name: '时间戳' }));
+
+    expect(mockNavigateTo).toHaveBeenCalledTimes(1);
+    expect(mockNavigateTo).toHaveBeenCalledWith('timestamp');
+  });
+
+  it('有最近使用数据时应显示最近使用区块', () => {
+    mockUseDashboard.mockReturnValue({
+      visibleFeatures: [buildFeatureItem('timestamp')],
+      recentFeatures: [buildFeatureItem('jwt')],
+      showRecent: true,
+      navigateTo: mockNavigateTo,
+    });
+
+    render(<Index />);
+
+    expect(screen.getByText('最近使用')).toBeInTheDocument();
+    expect(screen.getByRole('button', { name: 'JWT 解析' })).toBeInTheDocument();
+  });
+
+  it('无最近使用数据时不应显示最近使用区块', () => {
+    render(<Index />);
+
+    expect(screen.queryByText('最近使用')).not.toBeInTheDocument();
+  });
+
+  it('点击最近使用按钮应触发 navigateTo', async () => {
+    const user = userEvent.setup();
+    mockUseDashboard.mockReturnValue({
+      visibleFeatures: [buildFeatureItem('timestamp')],
+      recentFeatures: [buildFeatureItem('jwt')],
+      showRecent: true,
+      navigateTo: mockNavigateTo,
+    });
+
+    render(<Index />);
+
+    await user.click(screen.getByRole('button', { name: 'JWT 解析' }));
+
+    expect(mockNavigateTo).toHaveBeenCalledWith('jwt');
+  });
+
+  it('无可见工具时应显示空状态', () => {
+    mockUseDashboard.mockReturnValue({
+      visibleFeatures: [],
+      recentFeatures: [],
+      showRecent: false,
+      navigateTo: mockNavigateTo,
+    });
+
+    render(<Index />);
+
+    expect(screen.getByText('没有可用的工具')).toBeInTheDocument();
+  });
+});

src/pages/Dashboard/__tests__/useDashboard.test.ts

@@ -0,0 +1,78 @@
+import { renderHook } from '@testing-library/react';
+import { describe, it, expect, vi, beforeEach } from 'vitest';
+import { useRouter } from '@/providers/RouterProvider';
+import { useDashboard } from '../useDashboard';
+import type { PageType } from '@/types/storage';
+
+vi.mock('@/providers/RouterProvider', () => ({
+  useRouter: vi.fn(),
+}));
+
+const mockNavigateTo = vi.fn();
+
+function mockRouterState(
+  overrides: {
+    visiblePages?: PageType[];
+    pageOrder?: PageType[];
+    recentlyUsedTools?: PageType[];
+  } = {},
+) {
+  vi.mocked(useRouter).mockReturnValue({
+    currentPage: 'dashboard',
+    visiblePages: overrides.visiblePages ?? ['dashboard', 'timestamp', 'jwt'],
+    pageOrder: overrides.pageOrder ?? ['jwt', 'timestamp'],
+    recentlyUsedTools: overrides.recentlyUsedTools ?? [],
+    isLoaded: true,
+    navigateTo: mockNavigateTo,
+    goHome: vi.fn(),
+    setVisiblePages: vi.fn(),
+    setPageOrder: vi.fn(),
+  });
+}
+
+describe('useDashboard', () => {
+  beforeEach(() => {
+    vi.clearAllMocks();
+  });
+
+  it('应透传 router 中的 navigateTo', () => {
+    mockRouterState();
+
+    const { result } = renderHook(() => useDashboard());
+
+    expect(result.current.navigateTo).toBe(mockNavigateTo);
+  });
+
+  it('recentlyUsedTools 有可见工具时应显示最近使用', () => {
+    mockRouterState({
+      visiblePages: ['dashboard', 'timestamp', 'jwt'],
+      recentlyUsedTools: ['timestamp', 'jwt'],
+    });
+
+    const { result } = renderHook(() => useDashboard());
+
+    expect(result.current.showRecent).toBe(true);
+    expect(result.current.recentFeatures.map((item) => item.key)).toEqual(['timestamp', 'jwt']);
+  });
+
+  it('recentlyUsedTools 为空时不应显示最近使用', () => {
+    mockRouterState({ recentlyUsedTools: [] });
+
+    const { result } = renderHook(() => useDashboard());
+
+    expect(result.current.showRecent).toBe(false);
+    expect(result.current.recentFeatures).toEqual([]);
+  });
+
+  it('最近使用中的不可见工具应被过滤', () => {
+    mockRouterState({
+      visiblePages: ['dashboard', 'timestamp'],
+      recentlyUsedTools: ['jwt', 'timestamp'],
+    });
+
+    const { result } = renderHook(() => useDashboard());
+
+    expect(result.current.showRecent).toBe(true);
+    expect(result.current.recentFeatures.map((item) => item.key)).toEqual(['timestamp']);
+  });
+});

src/pages/Dashboard/dashboardFeatures.ts

@@ -0,0 +1,38 @@
+import { getFeatureByKey, type FeatureConfig } from '@/config/features';
+import type { PageType } from '@/types/storage';
+
+export type DashboardFeature = FeatureConfig & {
+  icon: NonNullable<FeatureConfig['icon']>;
+};
+
+export interface DashboardFeatureItem {
+  key: PageType;
+  feature: DashboardFeature;
+}
+
+function isDashboardFeature(feature: FeatureConfig): feature is DashboardFeature {
+  return feature.icon != null;
+}
+
+/**
+ * 将页面 key 列表解析为 Dashboard 可展示的工具项。
+ * 过滤条件：在 visiblePages 中且 feature 配置了 icon。
+ */
+export function resolveDashboardFeatures(
+  keys: PageType[],
+  visiblePages: PageType[],
+): DashboardFeatureItem[] {
+  const visibleSet = new Set(visiblePages);
+  const items: DashboardFeatureItem[] = [];
+
+  for (const key of keys) {
+    if (!visibleSet.has(key)) continue;
+
+    const feature = getFeatureByKey(key);
+    if (!feature || !isDashboardFeature(feature)) continue;
+
+    items.push({ key, feature });
+  }
+
+  return items;
+}

src/pages/Dashboard/index.tsx

@@ -1,28 +1,11 @@
-import { useRouter } from '@/providers/RouterProvider';
-import { getFeatureByKey } from '@/config/features';
-import type { PageType } from '@/types/storage';
 import { cn } from '@/lib/utils';
+import { useDashboard } from './useDashboard';
 
 export default function Index() {
-  const { navigateTo, visiblePages, pageOrder, recentlyUsedTools } = useRouter();
-
-  const visibleSet = new Set<string>(visiblePages);
-
-  const visibleFeatures = pageOrder
-    .filter((key) => visibleSet.has(key))
-    .map((key) => ({ key, feature: getFeatureByKey(key) }))
-    .filter((item) => item.feature?.themeColorKey && item.feature.icon != null);
-
-  const recentFeatures = recentlyUsedTools
-    .filter((key) => visibleSet.has(key))
-    .map((key) => ({ key, feature: getFeatureByKey(key) }))
-    .filter((item) => item.feature?.themeColorKey && item.feature.icon != null);
-
-  const showRecent = recentFeatures.length > 0;
+  const { visibleFeatures, recentFeatures, showRecent, navigateTo } = useDashboard();
 
   return (
     <div className={cn('flex flex-col gap-4 p-3.5 w-full h-auto select-none')}>
-      {/* 最近使用 */}
       {showRecent && (
         <div className="flex flex-col gap-2">
           <h3 className="text-xs font-semibold text-muted-foreground/80 uppercase tracking-wider">
@@ -30,12 +13,12 @@ export default function Index() {
           </h3>
           <div className="flex flex-wrap gap-2">
             {recentFeatures.map(({ key, feature }) => {
-              const IconComponent = feature!.icon!;
+              const IconComponent = feature.icon;
               return (
                 <button
                   key={key}
                   type="button"
-                  onClick={() => navigateTo(key as PageType)}
+                  onClick={() => navigateTo(key)}
                   className={cn(
                     'inline-flex items-center gap-1.5 px-3 py-1.5 rounded-full text-xs font-medium',
                     'border border-border/60 bg-card text-card-foreground',
@@ -44,7 +27,7 @@ export default function Index() {
                   )}
                 >
                   <IconComponent className="h-3.5 w-3.5 text-muted-foreground/70" />
-                  {feature!.label}
+                  {feature.label}
                 </button>
               );
             })}
@@ -52,40 +35,45 @@ export default function Index() {
         </div>
       )}
 
-      {/* 全部工具 — 紧凑 Grid */}
       <div className="flex flex-col gap-2">
         <h3 className="text-xs font-semibold text-muted-foreground/80 uppercase tracking-wider">
           {'全部工具'}
         </h3>
-        <div className={cn('grid grid-cols-3 sm:grid-cols-4 md:grid-cols-5 lg:grid-cols-6 gap-2')}>
-          {visibleFeatures.map(({ key, feature }) => {
-            const IconComponent = feature!.icon!;
-            return (
-              <button
-                key={key}
-                type="button"
-                onClick={() => navigateTo(key as PageType)}
-                className={cn(
-                  'group flex flex-col items-center justify-center gap-1.5',
-                  'py-3 px-2 rounded-xl border border-border/50 bg-card',
-                  'hover:bg-muted/40 hover:border-primary/30',
-                  'transition-colors cursor-pointer',
-                )}
-              >
-                <IconComponent
+        {visibleFeatures.length === 0 ? (
+          <p className="text-sm text-muted-foreground py-4 text-center">{'没有可用的工具'}</p>
+        ) : (
+          <div
+            className={cn('grid grid-cols-3 sm:grid-cols-4 md:grid-cols-5 lg:grid-cols-6 gap-2')}
+          >
+            {visibleFeatures.map(({ key, feature }) => {
+              const IconComponent = feature.icon;
+              return (
+                <button
+                  key={key}
+                  type="button"
+                  onClick={() => navigateTo(key)}
                   className={cn(
-                    'h-5 w-5 text-muted-foreground/70',
-                    'group-hover:text-foreground',
-                    'transition-colors',
+                    'group flex flex-col items-center justify-center gap-1.5',
+                    'py-3 px-2 rounded-xl border border-border/50 bg-card',
+                    'hover:bg-muted/40 hover:border-primary/30',
+                    'transition-colors cursor-pointer',
                   )}
-                />
-                <span className="text-[11px] font-medium text-muted-foreground/80 group-hover:text-foreground leading-tight text-center truncate w-full transition-colors">
-                  {feature!.label}
-                </span>
-              </button>
-            );
-          })}
-        </div>
+                >
+                  <IconComponent
+                    className={cn(
+                      'h-5 w-5 text-muted-foreground/70',
+                      'group-hover:text-foreground',
+                      'transition-colors',
+                    )}
+                  />
+                  <span className="text-[11px] font-medium text-muted-foreground/80 group-hover:text-foreground leading-tight text-center truncate w-full transition-colors">
+                    {feature.label}
+                  </span>
+                </button>
+              );
+            })}
+          </div>
+        )}
       </div>
     </div>
   );

src/pages/Dashboard/useDashboard.ts

@@ -0,0 +1,31 @@
+import { useMemo } from 'react';
+import { useRouter } from '@/providers/RouterProvider';
+import type { PageType } from '@/types/storage';
+import { resolveDashboardFeatures, type DashboardFeatureItem } from './dashboardFeatures';
+
+export type { DashboardFeatureItem } from './dashboardFeatures';
+
+export interface UseDashboardReturn {
+  visibleFeatures: DashboardFeatureItem[];
+  recentFeatures: DashboardFeatureItem[];
+  showRecent: boolean;
+  navigateTo: (page: PageType) => void;
+}
+
+export function useDashboard(): UseDashboardReturn {
+  const { navigateTo, visiblePages, pageOrder, recentlyUsedTools } = useRouter();
+
+  const visibleFeatures = useMemo(
+    () => resolveDashboardFeatures(pageOrder, visiblePages),
+    [pageOrder, visiblePages],
+  );
+
+  const recentFeatures = useMemo(
+    () => resolveDashboardFeatures(recentlyUsedTools, visiblePages),
+    [recentlyUsedTools, visiblePages],
+  );
+
+  const showRecent = recentFeatures.length > 0;
+
+  return { visibleFeatures, recentFeatures, showRecent, navigateTo };
+}

src/pages/QrCode/index.tsx

@@ -9,7 +9,6 @@ import type { QrCodeMode } from './types';
 export default function Index() {
   const qrCode = useQrCode();
 
-  // 模式选项驱动骨架
   const modeOptions = [
     { value: 'generate' as QrCodeMode, label: '文本转二维码' },
     { value: 'parse' as QrCodeMode, label: '二维码转文本' },

src/pages/README.md

@@ -22,10 +22,9 @@ pages/FeatureName/
 
 仪表盘首页，以卡片网格展示所有可见工具，支持点击导航。
 
-| 文件           | 用途                                         |
-| -------------- | -------------------------------------------- |
-| `index.tsx`    | 页面组件，渲染工具卡片网格                   |
-| `ToolCard.tsx` | 工具卡片组件，展示图标、标题、描述和实时数据 |
+| 文件        | 用途                       |
+| ----------- | -------------------------- |
+| `index.tsx` | 页面组件，渲染工具卡片网格 |
 
 ### Timestamp/
 

src/utils/__tests__/base64Converter.test.ts

@@ -316,7 +316,7 @@ describe('base64ToBlob', () => {
   });
 
   it('应该对非法 Base64 抛出 Invalid Base64 string', () => {
-    expect(() => base64ToBlob('这不是 base64!')).toThrow('Invalid Base64 string');
+    expect(() => base64ToBlob('这不是 base64!')).toThrow('无效的 Base64 字符串');
   });
 
   it('应该返回原始 Base64（已去除 data URI 前缀）', () => {

src/utils/__tests__/jsonToToml.test.ts

@@ -76,14 +76,6 @@ describe('jsonToToml', () => {
     expect(() => jsonToToml('{invalid}')).toThrow(SyntaxError);
   });
 
-  it('should throw Error for non-object top-level value', () => {
-    expect(() => jsonToToml('"hello"')).toThrow(
-      'TOML requires the top-level value to be an object',
-    );
-    expect(() => jsonToToml('[1,2]')).toThrow('TOML requires the top-level value to be an object');
-    expect(() => jsonToToml('null')).toThrow('TOML requires the top-level value to be an object');
-  });
-
   it('should escape special characters in strings', () => {
     const result = jsonToToml('{"path":"C:\\\\Users\\\\test"}');
     expect(result.output).toContain('"C:\\\\Users\\\\test"');

src/utils/__tests__/jsonToYaml.test.ts

@@ -86,11 +86,6 @@ describe('jsonToYaml', () => {
     expect(() => jsonToYaml('{invalid}')).toThrow(SyntaxError);
   });
 
-  it('should handle keys with special characters', () => {
-    const result = jsonToYaml('{"key with spaces":"value"}');
-    expect(result.output).toContain('"key with spaces"');
-  });
-
   it('should handle nested arrays in objects', () => {
     const result = jsonToYaml('{"items":[1,2,3]}');
     expect(result.output).toContain('items:');

src/utils/__tests__/qrCodeParser.test.ts

@@ -2,7 +2,6 @@ import { describe, expect, it, vi } from 'vitest';
 import { parseQrCodeFromFile } from '@/utils/qrCodeParser';
 import QrScanner from 'qr-scanner';
 
-// Mock qr-scanner
 vi.mock('qr-scanner', () => ({
   default: {
     scanImage: vi.fn(),

src/utils/qrCodeParser.ts

@@ -8,7 +8,6 @@ interface QrCodeParseResult {
 
 /**
  * 从文件中解析二维码
- * 使用 qr-scanner 替代 jsqr 以减小体积并提高性能
  */
 export async function parseQrCodeFromFile(file: File): Promise<QrCodeParseResult> {
   try {