fix(pda): 修复海外作业兼容性并完善扫码与装车收尾

tests/dispatch-loading-documents.test.mjs

@@ -30,6 +30,21 @@ test('five existing slots carry their business names into upload, replace and pr
   assert.match(template, /:aria-label="`查看\$\{slotLabels\[slot\]\}大图`"/)
   assert.doesNotMatch(template, /装车照片 \{\{ index \+ 1 \}\}/)
 })
+test('saving the final loading photo reports the confirmed complete snapshot after releasing busy state', async () => {
+  const completed = data({ recordVersion: '1', complete: true, stage: 'DELIVERING', editable: false,
+    photos: loadingPhotoSlots.map((slot, index) => ({ ...photo, slot, fileId: String(1001 + index) })) })
+  let uploads = 0
+  const { state, events } = component({ uploadLoadingPhoto: async () => { uploads++; return photo }, bindLoadingPhoto: async () => completed })
+  uni.chooseImage = async () => ({ tempFilePaths: ['final-photo', 'extra-photo'] })
+  await state.load()
+  await state.choose(photo.slot)
+  const savedIndex = events.findIndex(event => event[0] === 'saved')
+  assert.ok(savedIndex > 0)
+  assert.deepEqual(events[savedIndex - 1], ['busy-change', false])
+  assert.deepEqual(events[savedIndex], ['saved', completed])
+  assert.equal(uploads, 1)
+})
+
 test('refresh reads all photos saved by PC and refreshes the task stage without another write', async () => {
   let latest = data({ photos: [photo] }), writes = 0, fail = false
   const { state, events } = component({ getLoadingDocuments: async () => { if (fail) throw new Error('刷新失败'); return latest },