feat: 打手详情赠送会员 UI，并改善后台错误提示

新增赠送会员送/改期/移除；请求失败优先展示后端 msg；考核官添加防重复提交。

Co-authored-by: Cursor <cursoragent@cursor.com>

src/views/assessment/ExamConfig.vue

@@ -282,7 +282,7 @@ const saveChenghao = async () => {
       ElMessage.error(res.msg || '操作失败')
     }
   } catch (e) {
-    ElMessage.error('网络错误')
+    ElMessage.error(e?.response?.data?.msg || e?.message || '网络错误')
   } finally {
     saving.value = false
   }
@@ -311,7 +311,7 @@ const deleteChenghao = async () => {
       ElMessage.error(res.msg || '删除失败')
     }
   } catch (e) {
-    ElMessage.error('网络错误')
+    ElMessage.error(e?.response?.data?.msg || e?.message || '网络错误')
   }
 }
 

src/views/assessment/ExaminerManage.vue

@@ -510,6 +510,7 @@ const closeAddDialog = () => {
 }
 
 const submitAddExaminer = async () => {
+  if (addSaving.value) return
   const uid = (addForm.yonghuid || '').trim()
   if (!uid) {
     ElMessage.warning('请输入用户ID')
@@ -535,7 +536,7 @@ const submitAddExaminer = async () => {
       ElMessage.error(res.msg || '添加失败')
     }
   } catch (e) {
-    ElMessage.error('网络错误')
+    ElMessage.error(e?.response?.data?.msg || e?.message || '网络错误')
   } finally {
     addSaving.value = false
   }