修复操作人异常显示

frontend/src/views/admin/AuditLogs.vue

@@ -93,6 +93,7 @@ import { useRouter } from "vue-router";
 import { ElMessage, ElMessageBox } from "element-plus";
 import { fetchAuditLogs } from "../../api/auditLogs";
 import { fetchUsers } from "../../api/users";
+import { listMembers } from "../../api/members";
 import { auditDict, normalizeAuditEvent } from "../../audit";
 import { useStudyStore } from "../../store/study";
 import { useAuthStore } from "../../store/auth";
@@ -155,13 +156,19 @@ const ensureAccess = () => {
 };
 
 const loadUsers = async () => {
-  if (auth.user?.role !== "ADMIN") {
-    users.value = [];
-    return;
-  }
   try {
-    const { data } = await fetchUsers({ limit: 500 });
-    users.value = (data as any).items || data || [];
+    if (auth.user?.role === "ADMIN") {
+      const { data } = await fetchUsers({ limit: 500 });
+      users.value = (data as any).items || data || [];
+    } else if (study.currentStudy) {
+      // 非管理员，尝试加载项目成员作为备选
+      const { data } = await listMembers(study.currentStudy.id, { limit: 500 });
+      const items = Array.isArray(data) ? data : (data as any).items || [];
+      users.value = items.map((m: any) => ({
+        id: m.user_id,
+        username: m.user?.display_name || m.user?.full_name || m.user?.username || m.username,
+      }));
+    }
   } catch {
     users.value = [];
   }