feat: lock dialog and disable close actions during image upload to prevent orphan files and state errors

inventory-web/src/views/material/list.vue

@@ -323,6 +323,9 @@
           width="700px"
           append-to-body
           @close="cancel"
+          :close-on-click-modal="!isUploading"
+          :close-on-press-escape="!isUploading"
+          :show-close="!isUploading"
       >
         <el-form ref="formRef" :model="form" :rules="rules" label-width="110px">
 
@@ -477,8 +480,8 @@
 
         <template #footer>
           <div class="dialog-footer">
-            <el-button @click="cancel">取 消</el-button>
-            <el-button type="primary" @click="submitForm" :loading="submitLoading">确 定</el-button>
+            <el-button @click="cancel" :disabled="isUploading">取 消</el-button>
+            <el-button type="primary" @click="submitForm" :loading="submitLoading || isUploading">确 定</el-button>
           </div>
         </template>
       </el-dialog>
@@ -596,6 +599,10 @@ const total = ref(0);
 const tableData = ref<MaterialBaseVO[]>([]);
 const tableRef = ref<InstanceType<typeof ElTable>>();
 const submitLoading = ref(false);
+
+// 上传锁定状态
+const isUploading = ref(false);
+
 const tableSize = ref<'large' | 'default' | 'small'>('large');
 const advancedFilterVisible = ref(false);
 const advancedConditions = ref([{ field: '', operator: '', value: '' }]);
@@ -1278,6 +1285,7 @@ const customUpload = async (options: any, targetField: 'generalImage' | 'general
   const { file, onSuccess, onError } = options
   const formData = new FormData()
   formData.append('file', file)
+  isUploading.value = true
   try {
     const res: any = await uploadFile(formData)
     if (res.code === 200) {
@@ -1293,6 +1301,7 @@ const customUpload = async (options: any, targetField: 'generalImage' | 'general
     ElMessage.error('网络错误');
     onError(e)
   }
+  finally { isUploading.value = false }
 }
 
 const handleRemoveImage = async (uploadFile: any, targetField: 'generalImage' | 'generalManual') => {