test: 智能识别与英文名搜索的单测 + e2e

- 将粘贴解析抽到 useOilProductPaste composable
- 8 条 vitest 覆盖价格/规格/中英文名/类型判断
- 2 条 cypress 覆盖 UI 填充（产品 100ml、精油 15ml）
- 补英文名搜索 e2e；旧 search 用例 placeholder 选择器宽松化

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

frontend/src/__tests__/oilProductPaste.test.js

@@ -0,0 +1,73 @@
+import { describe, it, expect } from 'vitest'
+import { parseOilProductPaste } from '../composables/useOilProductPaste'
+
+describe('parseOilProductPaste', () => {
+  it('returns empty shape for empty input', () => {
+    const r = parseOilProductPaste('')
+    expect(r.cn).toBe('')
+    expect(r.en).toBe('')
+    expect(r.memberPrice).toBeNull()
+    expect(r.retailPrice).toBeNull()
+  })
+
+  it('parses the 花样年华 sample as product with 100ml', () => {
+    const sample = `优惠顾客价:￥310PT:41
+
+零售价:￥465
+
+点数:37 规格:100毫升
+
+花样年华焕颜精华水 Salubelle Rejuvenating Essence`
+    const r = parseOilProductPaste(sample)
+    expect(r.type).toBe('product')
+    expect(r.memberPrice).toBe(310)
+    expect(r.retailPrice).toBe(465)
+    expect(r.productAmount).toBe(100)
+    expect(r.productUnit).toBe('ml')
+    expect(r.cn).toBe('花样年华焕颜精华水')
+    expect(r.en).toBe('Salubelle Rejuvenating Essence')
+  })
+
+  it('detects essential oil when volume is standard ml', () => {
+    const sample = `会员价:￥200\n零售价:￥267\n规格:15毫升\n薰衣草 Lavender`
+    const r = parseOilProductPaste(sample)
+    expect(r.type).toBe('oil')
+    expect(r.volume).toBe('15')
+    expect(r.cn).toBe('薰衣草')
+    expect(r.en).toBe('Lavender')
+  })
+
+  it('handles half-width colon and dollar variant', () => {
+    const r = parseOilProductPaste('优惠顾客价: ¥99\n零售价: ¥150\n规格: 5ml\n柠檬 Lemon')
+    expect(r.memberPrice).toBe(99)
+    expect(r.retailPrice).toBe(150)
+    expect(r.type).toBe('oil')
+    expect(r.volume).toBe('5')
+  })
+
+  it('parses capsule spec as product', () => {
+    const r = parseOilProductPaste('优惠顾客价:￥200\n规格:60粒\n深海鱼油 Omega')
+    expect(r.type).toBe('product')
+    expect(r.productAmount).toBe(60)
+    expect(r.productUnit).toBe('capsule')
+  })
+
+  it('parses gram spec as product', () => {
+    const r = parseOilProductPaste('优惠顾客价:￥80\n规格:120克\n洁面乳 Face Wash')
+    expect(r.productUnit).toBe('g')
+    expect(r.productAmount).toBe(120)
+  })
+
+  it('non-standard ml volume falls to product', () => {
+    const r = parseOilProductPaste('优惠顾客价:￥310\n规格:100毫升\n精华 Essence')
+    expect(r.type).toBe('product')
+    expect(r.productAmount).toBe(100)
+    expect(r.productUnit).toBe('ml')
+  })
+
+  it('name without english part keeps cn only', () => {
+    const r = parseOilProductPaste('优惠顾客价:￥50\n规格:5毫升\n某国产品')
+    expect(r.cn).toBe('某国产品')
+    expect(r.en).toBe('')
+  })
+})