feat: 学生管理页面展示多会员绑定信息

- 列表页"归属用户"列：单人显示昵称/手机号，多人显示"N人绑定"并用tooltip展示详情
- 编辑弹窗：使用Tag组件展示所有绑定的会员信息

frontend/ruoyi-ui/src/views/business/student/components/StudentDialog.vue

@@ -54,7 +54,17 @@
         />
       </el-form-item>
       <el-form-item label="归属用户">
-        <span style="color: #F56C6C;">{{ form.memberDisplay || '暂无归属用户' }}</span>
+        <template v-if="form.members && form.members.length > 0">
+          <el-tag 
+            v-for="(m, idx) in form.members" 
+            :key="idx" 
+            size="small" 
+            style="margin-right: 6px; margin-bottom: 4px;"
+          >
+            {{ m.nickname || m.phone }}{{ m.relation ? `（${m.relation}）` : '' }}
+          </el-tag>
+        </template>
+        <span v-else style="color: #909399;">暂无归属用户</span>
       </el-form-item>
     </el-form>
     <template #footer>
@@ -94,8 +104,7 @@ const initialForm = {
   schoolId: null,
   schoolGradeId: null,
   schoolClassId: null,
-  memberId: null,
-  memberDisplay: ''
+  members: []
 }
 
 const form = reactive({ ...initialForm })
@@ -153,6 +162,7 @@ const open = async (row = null) => {
   // 重置表单
   Object.assign(form, initialForm)
   form.schoolPath = []
+  form.members = []
   formRef.value?.clearValidate()
   
   // 获取基础数据
@@ -169,8 +179,7 @@ const open = async (row = null) => {
         form.studentNo = data.studentNo
         form.gender = data.gender || '0'
         form.birthday = data.birthday ? formatBirthday(data.birthday) : ''
-        form.memberId = data.memberId
-        form.memberDisplay = data.memberNickname ? `${data.memberNickname}（${data.memberPhone || ''}）` : ''
+        form.members = data.members || []
         
         // 构建学校路径用于级联选择器回显
         if (data.schoolId && data.schoolGradeId && data.schoolClassId) {
@@ -212,8 +221,7 @@ const handleSubmit = async () => {
       birthday: form.birthday,
       schoolId: form.schoolId,
       schoolGradeId: form.schoolGradeId,
-      schoolClassId: form.schoolClassId,
-      memberId: form.memberId
+      schoolClassId: form.schoolClassId
     }
 
     if (isEdit.value) {

frontend/ruoyi-ui/src/views/business/student/index.vue

@@ -73,10 +73,22 @@
             <el-table-column prop="schoolName" label="学校" min-width="150" show-overflow-tooltip />
             <el-table-column prop="gradeName" label="年级" width="80" />
             <el-table-column prop="className" label="班级" width="80" />
-            <el-table-column prop="memberNickname" label="归属用户" width="120" show-overflow-tooltip>
+            <el-table-column label="归属用户" width="180">
               <template #default="{ row }">
-                <span v-if="row.memberNickname">{{ row.memberNickname }}</span>
-                <span v-else-if="row.memberPhone">{{ row.memberPhone }}</span>
+                <template v-if="row.members && row.members.length > 0">
+                  <el-tooltip v-if="row.members.length > 1" placement="top">
+                    <template #content>
+                      <div v-for="(m, idx) in row.members" :key="idx" style="line-height: 1.6">
+                        {{ m.nickname || m.phone }}{{ m.relation ? `（${m.relation}）` : '' }}
+                      </div>
+                    </template>
+                    <el-tag size="small">{{ row.memberCount }}人绑定</el-tag>
+                  </el-tooltip>
+                  <span v-else>
+                    {{ row.members[0].nickname || row.members[0].phone }}
+                    <span v-if="row.members[0].relation" style="color: #909399">（{{ row.members[0].relation }}）</span>
+                  </span>
+                </template>
                 <span v-else style="color: #909399">未绑定</span>
               </template>
             </el-table-column>