fix(admin): preserve tail-leg references

src/modules/overseas-warehouse/components/OrderReferenceText.test.ts

@@ -1,5 +1,5 @@
-import { mount } from '@vue/test-utils'
-import { describe, expect, it } from 'vitest'
+import { flushPromises, mount } from '@vue/test-utils'
+import { describe, expect, it, vi } from 'vitest'
 import OrderReferenceText from './OrderReferenceText.vue'
 
 describe('OrderReferenceText', () => {
@@ -23,4 +23,15 @@ describe('OrderReferenceText', () => {
     expect(wrapper.text()).toBe('LMO-260827-0001')
     expect(wrapper.attributes('title')).toBe('LMO-260827-0001')
   })
+
+  it('copies the exact server short number without frontend formatting', async () => {
+    const writeText = vi.fn().mockResolvedValue(undefined)
+    vi.stubGlobal('navigator', { clipboard: { writeText } })
+    const wrapper = mount(OrderReferenceText, { props: { value: 'LMO-9A7', copyable: true } })
+    await wrapper.get('el-button').trigger('click')
+    await flushPromises()
+    expect(writeText).toHaveBeenCalledWith('LMO-9A7')
+    expect(wrapper.attributes('title')).toBe('LMO-9A7')
+    vi.unstubAllGlobals()
+  })
 })