修复：增强扫码与接口契约校验

shierfeng-fastapi-frontend/src/components/PalletScanInput/index.vue

@@ -64,10 +64,13 @@ const errorMessage = ref('')
 let lastScanValue = ''
 let lastScanAt = 0
 
-function focusInput() {
+function focusInput(selectValue = false) {
   nextTick(() => {
-    if (!props.disabled) {
+    if (!props.disabled && !props.loading) {
       inputRef.value?.focus()
+      if (selectValue) {
+        inputRef.value?.select()
+      }
     }
   })
 }
@@ -90,7 +93,7 @@ function handleSubmit() {
   } catch (error) {
     errorMessage.value = error.message
     emit('invalid', error.message)
-    focusInput()
+    focusInput(true)
     return
   }
 
@@ -118,11 +121,14 @@ function handleSubmit() {
 
 onMounted(focusInput)
 
-watch(() => props.loading, (loading) => {
-  if (!loading) {
-    focusInput()
+watch(
+  () => [props.loading, props.disabled],
+  ([loading, disabled]) => {
+    if (!loading && !disabled) {
+      focusInput()
+    }
   }
-})
+)
 </script>
 
 <style lang="scss" scoped>