refactor: 删除高优先级死代码

删除未使用的代码以提高代码质量和可维护性：

删除的文件：
- src/pages/Dashboard/ToolCard.tsx：未被使用的组件
- src/utils/useDebounce.ts：未被使用的 hook
- src/components/__tests__/ToolCard.test.tsx：对应组件的测试文件

删除的导出函数：
- chromeTabs: getActiveTab, getActiveTabDomain, ensureContentScriptInjected
- clipboard: copyImageToClipboard
- storageCleaner: isEmptyResult
- chromeI18n: preloadNamespaces
- useContextMenuData: clearContextMenuData

更新了对应的测试文件以保持一致性

总计删除 525 行代码，所有 473 个测试通过

src/utils/__tests__/chromeTabs.test.ts

@@ -1,101 +1,7 @@
 import { describe, expect, it, vi } from 'vitest';
-import {
-  getActiveTab,
-  getActiveTabDomain,
-  openExtensionPage,
-  ensureContentScriptInjected,
-} from '@/utils/chromeTabs';
+import { openExtensionPage } from '@/utils/chromeTabs';
 
 describe('chromeTabs', () => {
-  describe('getActiveTab', () => {
-    it('应该返回当前活动标签页', async () => {
-      const mockTab = { id: 1, url: 'https://example.com', title: 'Example' } as chrome.tabs.Tab;
-      (chrome.tabs.query as any).mockResolvedValue([mockTab]);
-
-      const result = await getActiveTab();
-
-      expect(result).toEqual(mockTab);
-      expect(chrome.tabs.query).toHaveBeenCalledWith({ active: true, currentWindow: true });
-    });
-
-    it('当没有活动标签页时应返回 null', async () => {
-      (chrome.tabs.query as any).mockResolvedValue([]);
-
-      const result = await getActiveTab();
-
-      expect(result).toBeNull();
-    });
-
-    it('当查询失败时应返回 null 并记录错误', async () => {
-      const consoleSpy = vi.spyOn(console, 'error').mockImplementation(() => {});
-      (chrome.tabs.query as any).mockRejectedValue(new Error('Permission denied'));
-
-      const result = await getActiveTab();
-
-      expect(result).toBeNull();
-      expect(consoleSpy).toHaveBeenCalledWith('获取活动标签页失败:', expect.any(Error));
-      consoleSpy.mockRestore();
-    });
-  });
-
-  describe('getActiveTabDomain', () => {
-    it('应该返回当前活动标签页的域名', async () => {
-      const mockTab = { id: 1, url: 'https://example.com/path?query=1' } as chrome.tabs.Tab;
-      (chrome.tabs.query as any).mockResolvedValue([mockTab]);
-
-      const result = await getActiveTabDomain();
-
-      expect(result).toBe('example.com');
-    });
-
-    it('应该处理带有端口的 URL', async () => {
-      const mockTab = { id: 1, url: 'https://example.com:8080/path' } as chrome.tabs.Tab;
-      (chrome.tabs.query as any).mockResolvedValue([mockTab]);
-
-      const result = await getActiveTabDomain();
-
-      expect(result).toBe('example.com');
-    });
-
-    it('当标签页没有 URL 时应返回空字符串', async () => {
-      const mockTab = { id: 1 } as chrome.tabs.Tab;
-      (chrome.tabs.query as any).mockResolvedValue([mockTab]);
-
-      const result = await getActiveTabDomain();
-
-      expect(result).toBe('');
-    });
-
-    it('当没有活动标签页时应返回空字符串', async () => {
-      (chrome.tabs.query as any).mockResolvedValue([]);
-
-      const result = await getActiveTabDomain();
-
-      expect(result).toBe('');
-    });
-
-    it('当 URL 解析失败时应返回空字符串并记录错误', async () => {
-      const consoleSpy = vi.spyOn(console, 'error').mockImplementation(() => {});
-      const mockTab = { id: 1, url: 'not-a-valid-url' } as chrome.tabs.Tab;
-      (chrome.tabs.query as any).mockResolvedValue([mockTab]);
-
-      const result = await getActiveTabDomain();
-
-      expect(result).toBe('');
-      expect(consoleSpy).toHaveBeenCalledWith('解析域名失败:', expect.any(Error));
-      consoleSpy.mockRestore();
-    });
-
-    it('应该处理 chrome-extension URL', async () => {
-      const mockTab = { id: 1, url: 'chrome-extension://abc123/popup.html' } as chrome.tabs.Tab;
-      (chrome.tabs.query as any).mockResolvedValue([mockTab]);
-
-      const result = await getActiveTabDomain();
-
-      expect(result).toBe('abc123');
-    });
-  });
-
   describe('openExtensionPage', () => {
     it('应该在新标签页中打开扩展页面', async () => {
       await openExtensionPage('popup.html');
@@ -116,44 +22,4 @@ describe('chromeTabs', () => {
       consoleSpy.mockRestore();
     });
   });
-
-  describe('ensureContentScriptInjected', () => {
-    it('当存在活动标签页时应返回 true', async () => {
-      const mockTab = { id: 123, url: 'https://example.com' } as chrome.tabs.Tab;
-      (chrome.tabs.query as any).mockResolvedValue([mockTab]);
-
-      const result = await ensureContentScriptInjected();
-
-      expect(result).toBe(true);
-    });
-
-    it('当没有活动标签页时应返回 false', async () => {
-      (chrome.tabs.query as any).mockResolvedValue([]);
-
-      const result = await ensureContentScriptInjected();
-
-      expect(result).toBe(false);
-    });
-
-    it('当标签页没有 id 时应返回 false', async () => {
-      const mockTab = { url: 'https://example.com' } as chrome.tabs.Tab;
-      (chrome.tabs.query as any).mockResolvedValue([mockTab]);
-
-      const result = await ensureContentScriptInjected();
-
-      expect(result).toBe(false);
-    });
-
-    it('当整体操作失败时应返回 false 并记录错误', async () => {
-      const consoleSpy = vi.spyOn(console, 'error').mockImplementation(() => {});
-      (chrome.tabs.query as any).mockRejectedValue(new Error('Query failed'));
-
-      const result = await ensureContentScriptInjected();
-
-      expect(result).toBe(false);
-      // getActiveTab catches the error and logs "获取活动标签页失败"
-      expect(consoleSpy).toHaveBeenCalledWith('获取活动标签页失败:', expect.any(Error));
-      consoleSpy.mockRestore();
-    });
-  });
 });

src/utils/__tests__/clipboard.test.ts

@@ -1,14 +1,5 @@
-import { describe, expect, it, vi, beforeAll } from 'vitest';
-import { copyTextToClipboard, copyImageToClipboard } from '@/utils/clipboard';
-
-// Mock ClipboardItem for test environment
-class MockClipboardItem {
-  constructor(public items: Record<string, Blob>) {}
-}
-
-beforeAll(() => {
-  (globalThis as any).ClipboardItem = MockClipboardItem;
-});
+import { describe, expect, it, vi } from 'vitest';
+import { copyTextToClipboard } from '@/utils/clipboard';
 
 describe('clipboard', () => {
   describe('copyTextToClipboard', () => {
@@ -31,27 +22,4 @@ describe('clipboard', () => {
       expect(result).toBe(false);
     });
   });
-
-  describe('copyImageToClipboard', () => {
-    it('复制成功时应返回 true', async () => {
-      const write = vi.fn().mockResolvedValue(undefined);
-      Object.assign(navigator, { clipboard: { write } });
-
-      const blob = new Blob(['png data'], { type: 'image/png' });
-      const result = await copyImageToClipboard(blob);
-
-      expect(result).toBe(true);
-      expect(write).toHaveBeenCalledTimes(1);
-    });
-
-    it('复制失败时应返回 false', async () => {
-      const write = vi.fn().mockRejectedValue(new Error('Permission denied'));
-      Object.assign(navigator, { clipboard: { write } });
-
-      const blob = new Blob(['png data'], { type: 'image/png' });
-      const result = await copyImageToClipboard(blob);
-
-      expect(result).toBe(false);
-    });
-  });
 });

src/utils/__tests__/useContextMenuData.test.ts

@@ -1,10 +1,6 @@
 import { describe, expect, it, vi, beforeEach, afterEach } from 'vitest';
 import { renderHook, act } from '@testing-library/react';
-import {
-  useContextMenuData,
-  saveContextMenuData,
-  clearContextMenuData,
-} from '@/utils/useContextMenuData';
+import { useContextMenuData, saveContextMenuData } from '@/utils/useContextMenuData';
 
 describe('useContextMenuData', () => {
   beforeEach(() => {
@@ -48,14 +44,6 @@ describe('useContextMenuData', () => {
     });
   });
 
-  describe('clearContextMenuData', () => {
-    it('应该从 storage 中删除数据', async () => {
-      await clearContextMenuData();
-
-      expect(chrome.storage.local.remove).toHaveBeenCalledWith(['contextMenu/pendingData']);
-    });
-  });
-
   describe('useContextMenuData Hook', () => {
     it('当 storage 中有匹配数据时应调用 onData 回调', async () => {
       const mockData = {