feat(admin): simplify truck payable currency

src/modules/trucking/components/TruckAppointmentForm.behavior.test.ts

@@ -122,4 +122,21 @@ describe('TruckAppointmentForm booking-only behavior', () => {
     expect(emitted.containerBookingId).toBeNull()
     wrapper.unmount()
   })
+
+  it('switches the payable currency between RMB and USD and normalizes an illegal legacy value', async () => {
+    const wrapper = mount(TruckAppointmentForm, {
+      props: { modelValue: { ...model, payableAmount: '88.00', currency: 'EUR' as never } },
+      global: { plugins: [ElementPlus] },
+    })
+    await flushPromises()
+    const currencySelect = wrapper.findAllComponents({ name: 'ElSelect' }).find((select) => select.props('placeholder') === '请选择币种')!
+    expect(currencySelect.props('modelValue')).toBe('RMB')
+    currencySelect.vm.$emit('update:modelValue', 'USD')
+    await flushPromises()
+    const emitted = wrapper.emitted('update:modelValue')?.at(-1)?.[0] as SaveTruckAppointmentRequest
+    expect(emitted.currency).toBe('USD')
+    expect(wrapper.text()).toContain('USD')
+    expect(emitted).not.toHaveProperty('receivableAmount')
+    wrapper.unmount()
+  })
 })