feat: 新增IM联系我们字典配置，优化用户搜索与邀请绑定功能

1. 优化IM用户列表搜索逻辑，支持长数字用户ID精确匹配
2. 修复前端雪花ID精度丢失问题，改用字符串传输用户ID
3. 新增邀请码批量绑定用户功能，支持搜索绑定指定用户
4. 新增字典配置接口，新增联系我们字典SQL脚本
5. 完善字典数据变更事件推送，优化弹窗关闭与页面刷新逻辑

web/src/views/im/registrationInvite/BindUserModal.vue

@@ -132,7 +132,8 @@
     }
     submitting.value = true;
     try {
-      await BindUser({ tenantId: tenantId.value, id: inviteId.value, userId: Number(selectedUserId.value) });
+      // 雪花ID超出 JS Number 安全整数范围，保持字符串传输避免精度丢失
+      await BindUser({ tenantId: tenantId.value, id: inviteId.value, userId: selectedUserId.value });
       message.success('绑定成功');
       showModal.value = false;
       emit('reload');

web/src/views/im/registrationInvite/CreateModal.vue

@@ -4,6 +4,23 @@
       <n-form-item v-if="isBatch" label="生成数量" path="quantity">
         <n-input-number v-model:value="formValue.quantity" :min="1" :max="1000" />
       </n-form-item>
+      <n-form-item v-if="isBatch" label="绑定用户" path="boundUserId">
+        <div class="bind-user-row">
+          <n-input
+            v-model:value="bindUserInput"
+            placeholder="输入用户ID/编号（非必填）"
+            clearable
+            :disabled="!!boundUser"
+            @keydown.enter="searchUser"
+          />
+          <n-button :loading="searching" :disabled="!!boundUser" @click="searchUser">搜索</n-button>
+        </div>
+        <div v-if="boundUser" class="bound-user-tag">
+          <n-avatar :size="28" :src="boundUser.avatar || defaultAvatar" />
+          <span class="bound-user-name">{{ boundUser.nickname || boundUser.username || boundUser.phone || '--' }}（{{ boundUser.userId }}）</span>
+          <n-button text type="error" @click="clearBoundUser">清除</n-button>
+        </div>
+      </n-form-item>
       <n-form-item label="到期时间" path="expiresAt">
         <n-date-picker v-model:value="formValue.expiresAt" type="datetime" clearable />
       </n-form-item>
@@ -24,7 +41,9 @@
   import { reactive, ref } from 'vue';
   import { useMessage } from 'naive-ui';
   import { BatchCreate, Create } from '@/api/im/registrationInvite';
+  import { List as UserList } from '@/api/imUser';
   import { localRfc3339 } from './model';
+  import defaultAvatar from '@/assets/images/schoolboy.png';
 
   const emit = defineEmits(['reload']);
   const message = useMessage();
@@ -33,11 +52,15 @@
   const formRef = ref();
   const tenantId = ref(0);
   const isBatch = ref(false);
+  const bindUserInput = ref('');
+  const searching = ref(false);
+  const boundUser = ref<any>(null);
   const formValue = reactive({
     quantity: 100,
     expiresAt: Date.now() + 7 * 24 * 3600 * 1000,
     remark: '',
     idempotencyKey: '',
+    boundUserId: '',
   });
 
   const rules = {
@@ -52,6 +75,9 @@
     formValue.expiresAt = Date.now() + 7 * 24 * 3600 * 1000;
     formValue.remark = '';
     formValue.idempotencyKey = crypto.randomUUID();
+    formValue.boundUserId = '';
+    bindUserInput.value = '';
+    boundUser.value = null;
     showModal.value = true;
   }
 
@@ -59,17 +85,61 @@
     showModal.value = false;
   }
 
+  async function searchUser() {
+    const keyword = bindUserInput.value.trim();
+    if (!keyword) {
+      message.warning('请输入用户ID/编号');
+      return;
+    }
+    searching.value = true;
+    try {
+      const res = await UserList({
+        tenantId: tenantId.value,
+        userId: keyword,
+        keyword: '',
+        page: 1,
+        perPage: 1,
+      });
+      const user = res?.list?.[0];
+      if (!user) {
+        message.warning('未找到该用户，将不绑定用户');
+        boundUser.value = null;
+        formValue.boundUserId = '';
+        return;
+      }
+      boundUser.value = user;
+      // 雪花ID超出 JS Number 安全整数范围，必须保持字符串传输，避免精度丢失
+      formValue.boundUserId = String(user.userId || '');
+      message.success('已选中用户');
+    } catch (error: any) {
+      message.error(error?.toString() || '用户查询失败');
+      boundUser.value = null;
+      formValue.boundUserId = '';
+    } finally {
+      searching.value = false;
+    }
+  }
+
+  function clearBoundUser() {
+    boundUser.value = null;
+    formValue.boundUserId = '';
+    bindUserInput.value = '';
+  }
+
   async function submit() {
     await formRef.value?.validate();
     loading.value = true;
     try {
-      const params = {
+      const params: any = {
         tenantId: tenantId.value,
         expiresAt: localRfc3339(formValue.expiresAt),
         remark: formValue.remark,
         idempotencyKey: formValue.idempotencyKey,
       };
       if (isBatch.value) {
+        if (formValue.boundUserId) {
+          params.userId = formValue.boundUserId;
+        }
         await BatchCreate({ ...params, quantity: formValue.quantity });
       } else {
         await Create(params);
@@ -87,3 +157,22 @@
   defineExpose({ openModal });
 </script>
 
+<style lang="less" scoped>
+  .bind-user-row {
+    display: flex;
+    gap: 8px;
+    width: 100%;
+  }
+
+  .bound-user-tag {
+    display: flex;
+    align-items: center;
+    gap: 8px;
+    margin-top: 8px;
+  }
+
+  .bound-user-name {
+    flex: 1;
+  }
+</style>
+

web/src/views/imSecurityPolicy/index.vue

@@ -515,6 +515,8 @@
         windowMinutes: lockoutForm.value.windowMinutes,
       });
       message.success('已保存，配置即时生效');
+      policyVisible.value = false;
+      reloadAll();
     } catch (e: any) {
       message.error(e.message || '保存失败');
     } finally {