feat: Study 页面应用场景链接标题抓取

- 替换 fetchTitles 导入为 getUrlTitle
- 新增 appUrlTitles 响应式映射缓存
- loadTaskApplications 中并行抓取应用场景 URL 标题
- 模板中应用场景链接显示抓取到的标题
- 移除旧的 loadUrlTitles 调用逻辑

src/components/Study.vue

@@ -5,6 +5,7 @@ import router from "@/router";
 import { ElMessage, ElMessageBox } from "element-plus";
 import { getReviewTaskStatsByTask } from "@/api/review";
 import { getActiveSession } from "@/api/studySessions";
+
 import {
   getPriorityWeights,
   getTaskApplications,
@@ -13,7 +14,7 @@ import {
   type PriorityWeights,
   type TaskApplication,
 } from "@/api/tasks";
-import { fetchTitles } from "@/utils/fetchTitle";
+import { getUrlTitle } from "@/utils/fetchTitle";
 
 interface TaskItem {
   title: string;
@@ -39,6 +40,7 @@ const selectedTaskId = ref<number | null>(null);
 const loading = ref(false);
 const taskApplications = ref<TaskApplication[]>([]);
 const applicationsLoading = ref(false);
+const appUrlTitles = ref<Record<number, string>>({});
 
 const applicationStatusOptions: { label: string; value: TaskApplication["status"] }[] = [
   { label: "待应用", value: "TODO" },
@@ -97,6 +99,15 @@ async function loadTaskApplications(taskNum: string) {
   try {
     const res = await getTaskApplications(taskNum);
     taskApplications.value = res?.data || [];
+    const map: Record<number, string> = {};
+    await Promise.all(
+      taskApplications.value
+        .filter((a) => a.resourceUrl)
+        .map(async (a) => {
+          map[a.id] = await getUrlTitle(a.resourceUrl!);
+        })
+    );
+    appUrlTitles.value = map;
   } catch (error: any) {
     taskApplications.value = [];
     ElMessage.error(error?.message || "应用场景加载失败");
@@ -168,10 +179,8 @@ watch(selectedTaskId, (newId) => {
   if (task) {
     loadTaskStats(task.taskNum);
     loadTaskApplications(task.taskNum);
-    loadUrlTitles();
   } else {
     taskApplications.value = [];
-    urlTitles.value = [];
   }
 });
 
@@ -409,7 +418,7 @@ onMounted(() => {
                   </div>
                   <p v-if="item.description">{{ item.description }}</p>
                   <el-link v-if="item.resourceUrl" :href="item.resourceUrl" target="_blank" type="primary">
-                    {{ item.resourceUrl }}
+                    {{ appUrlTitles[item.id] || item.resourceUrl }}
                   </el-link>
                 </div>
               </div>