fix: 修复类型检查报错并统一有效时间比显示

src/__tests__/utils/format.spec.ts

@@ -0,0 +1,22 @@
+import { describe, it, expect } from 'vitest'
+import { formatRatio } from '@/utils/format'
+
+describe('formatRatio', () => {
+  it('把 0~1 的比率格式化为一位小数的百分比', () => {
+    expect(formatRatio(0.8)).toBe('80.0%')
+    expect(formatRatio(0.8571)).toBe('85.7%')
+    expect(formatRatio(1)).toBe('100.0%')
+    expect(formatRatio(0)).toBe('0.0%')
+  })
+
+  it('兼容后端返回字符串形式的比率', () => {
+    expect(formatRatio('0.8')).toBe('80.0%')
+  })
+
+  it('空值与非法值统一显示 "-"', () => {
+    expect(formatRatio()).toBe('-')
+    expect(formatRatio(null)).toBe('-')
+    expect(formatRatio('')).toBe('-')
+    expect(formatRatio('abc')).toBe('-')
+  })
+})