printedparts: QR label with gage tag + revision; record taken rev

Label switches from CODE128 to a QR encoding 'TAG|rev' (gage lab tag + latest
print-file revision), so a physical part carries which revision it was printed
from - short payload stays low-version + reliable at 0.5in (margin quiet zone,
EC M, no logo). Item exposes latestrevision; kiosk strips the |rev to resolve
and records the scanned revision on the take (migration 0004 adds
printeditemtransactions.revision) for traceability of which rev was consumed.
Manual entry records a null revision.

plugins/printedparts/frontend/views/PartsKiosk.vue

@@ -106,6 +106,7 @@ const doneMessage = ref('')
 const submitting = ref(false)
 const manualCode = ref('')
 const manualBadge = ref('')
+const scannedRevision = ref(null)
 const entryInput = ref(null)
 let resetTimer = null
 
@@ -126,6 +127,9 @@ async function lookupItem(itemcode) {
   error.value = ''
   const code = (itemcode || '').trim()
   if (!code) return
+  // A label QR carries "TAG|rev"; capture the revision, resolve by the TAG part.
+  const pipe = code.indexOf('|')
+  scannedRevision.value = pipe >= 0 ? (parseInt(code.slice(pipe + 1), 10) || null) : null
   try {
     const response = await printedpartsApi.kioskItem(code)
     item.value = response.data.data
@@ -156,7 +160,8 @@ async function submitTake() {
     const response = await printedpartsApi.kioskTake({
       itemcode: item.value.itemcode,
       badge: badge.value,
-      quantity: parseInt(quantity.value, 10)
+      quantity: parseInt(quantity.value, 10),
+      revision: scannedRevision.value
     })
     doneMessage.value = response.data.message
     step.value = 'done'
@@ -182,6 +187,7 @@ function reset() {
   quantity.value = ''
   manualCode.value = ''
   manualBadge.value = ''
+  scannedRevision.value = null
   error.value = ''
   doneMessage.value = ''
   focusEntry()