fix: 修复 lint 警告 + 添加 format 工具函数单元测试

- constants.tsx: 添加 react-refresh/only-export-components 禁用注释
- 新增 format.test.ts: 为 format 工具函数添加单元测试（8 个用例）

apps/web/src/pages/voice-materials/constants.tsx

@@ -1,6 +1,7 @@
 /**
  * 配音素材库常量
  */
+/* eslint-disable react-refresh/only-export-components */
 import React from "react"
 import { ManOutlined, WomanOutlined, UserOutlined, SoundOutlined } from "@ant-design/icons"
 import type { VoiceGender } from "./types"

apps/web/src/test/pages/voice-materials/format.test.ts

@@ -0,0 +1,75 @@
+import { describe, expect, it } from "vitest"
+import {
+  genderLabel,
+  genderIcon,
+  genderClass,
+  formatDuration,
+  formatFileSize,
+  formatDate,
+} from "@/pages/voice-materials/utils/format"
+
+describe("voice-materials format utils", () => {
+  describe("genderLabel", () => {
+    it("应返回正确的性别标签", () => {
+      expect(genderLabel("male")).toBe("男声")
+      expect(genderLabel("female")).toBe("女声")
+      expect(genderLabel("child")).toBe("童声")
+      expect(genderLabel("neutral")).toBe("中性")
+    })
+
+    it("未知性别返回原值", () => {
+      expect(genderLabel("unknown" as any)).toBe("unknown")
+    })
+  })
+
+  describe("genderIcon", () => {
+    it("应返回图标组件", () => {
+      expect(genderIcon("male")).toBeDefined()
+      expect(genderIcon("female")).toBeDefined()
+      expect(genderIcon("child")).toBeDefined()
+      expect(genderIcon("neutral")).toBeDefined()
+    })
+
+    it("未知性别返回 null", () => {
+      expect(genderIcon("unknown" as any)).toBeNull()
+    })
+  })
+
+  describe("genderClass", () => {
+    it("应返回正确的 CSS 类名", () => {
+      expect(genderClass("male")).toBe("vmat-gender--male")
+      expect(genderClass("female")).toBe("vmat-gender--female")
+    })
+  })
+
+  describe("formatDuration", () => {
+    it("应正确格式化秒数", () => {
+      expect(formatDuration(0)).toBe("0:00")
+      expect(formatDuration(5)).toBe("0:05")
+      expect(formatDuration(59)).toBe("0:59")
+      expect(formatDuration(60)).toBe("1:00")
+      expect(formatDuration(65)).toBe("1:05")
+      expect(formatDuration(125)).toBe("2:05")
+      expect(formatDuration(3600)).toBe("60:00")
+    })
+  })
+
+  describe("formatFileSize", () => {
+    it("应正确格式化文件大小", () => {
+      expect(formatFileSize(0)).toBe("0 B")
+      expect(formatFileSize(512)).toBe("512 B")
+      expect(formatFileSize(1024)).toBe("1.0 KB")
+      expect(formatFileSize(1536)).toBe("1.5 KB")
+      expect(formatFileSize(1024 * 1024)).toBe("1.0 MB")
+      expect(formatFileSize(1024 * 1024 * 2.5)).toBe("2.5 MB")
+    })
+  })
+
+  describe("formatDate", () => {
+    it("应格式化 ISO 日期字符串", () => {
+      const result = formatDate("2026-07-24T10:30:00.000Z")
+      // 格式应该是 YYYY/MM/DD 格式
+      expect(result).toMatch(/^\d{4}\/\d{2}\/\d{2}$/)
+    })
+  })
+})