chore(test): 清理测试用例与类型导入

frontend/src/composables/__tests__/useClipboard.spec.ts

@@ -96,10 +96,12 @@ describe('useClipboard', () => {
   })
 
   it('Clipboard API 失败时降级到 fallback', async () => {
-    ;(navigator.clipboard.writeText as any).mockRejectedValue(new Error('API failed'))
+    const writeTextMock = navigator.clipboard.writeText as any
+    writeTextMock.mockRejectedValue(new Error('API failed'))
 
     // jsdom 没有 execCommand，手动定义
-    ;(document as any).execCommand = vi.fn().mockReturnValue(true)
+    const documentAny = document as any
+    documentAny.execCommand = vi.fn().mockReturnValue(true)
 
     const { copyToClipboard, copied } = useClipboard()
     const result = await copyToClipboard('fallback text')
@@ -112,7 +114,8 @@ describe('useClipboard', () => {
   it('非安全上下文使用 fallback', async () => {
     Object.defineProperty(window, 'isSecureContext', { value: false, writable: true })
 
-    ;(document as any).execCommand = vi.fn().mockReturnValue(true)
+    const documentAny = document as any
+    documentAny.execCommand = vi.fn().mockReturnValue(true)
 
     const { copyToClipboard, copied } = useClipboard()
     const result = await copyToClipboard('insecure context text')
@@ -124,8 +127,11 @@ describe('useClipboard', () => {
   })
 
   it('所有复制方式均失败时调用 showError', async () => {
-    ;(navigator.clipboard.writeText as any).mockRejectedValue(new Error('fail'))
-    ;(document as any).execCommand = vi.fn().mockReturnValue(false)
+    const writeTextMock = navigator.clipboard.writeText as any
+    writeTextMock.mockRejectedValue(new Error('fail'))
+
+    const documentAny = document as any
+    documentAny.execCommand = vi.fn().mockReturnValue(false)
 
     const { copyToClipboard, copied } = useClipboard()
     const result = await copyToClipboard('text')

frontend/src/composables/__tests__/useTableLoader.spec.ts

@@ -1,6 +1,5 @@
 import { describe, it, expect, vi, beforeEach, afterEach } from 'vitest'
 import { useTableLoader } from '@/composables/useTableLoader'
-import { nextTick } from 'vue'
 
 // Mock @vueuse/core 的 useDebounceFn
 vi.mock('@vueuse/core', () => ({
@@ -212,7 +211,7 @@ describe('useTableLoader', () => {
         })
       })
 
-      const { load, items } = useTableLoader({ fetchFn })
+      const { load } = useTableLoader({ fetchFn })
 
       // 第一次加载
       const p1 = load()