feat(复习)：回忆复习页面与入口

- 新增 ReviewRecall.vue 回忆复习页面（双栏布局）
  - 左栏：回忆大纲输入区、对比结果展示（✅❌着色树）
  - 右栏：标准导图（默认折叠）、编辑、重新生成
  - 遗漏项列表，可点击回看原文
  - 回忆历史记录查询
- api/standardMindMap.ts：标准导图与回忆对比 API
- router：新增 /review/recall/:taskNum 路由
- Review.vue 行操作中增加回忆复习按钮
- ReviewDetail.vue 思维导图区增加回忆复习入口

src/components/Study.vue

@@ -4,6 +4,11 @@ import request from "@/utils/request";
 import router from "@/router";
 import { ElMessage } from "element-plus";
 import { getReviewTaskStatsByTask } from "@/api/review";
+import {
+  getTaskApplications,
+  updateTaskApplication,
+  type TaskApplication,
+} from "@/api/tasks";
 
 interface TaskItem {
   title: string;
@@ -27,6 +32,14 @@ interface TaskItem {
 const tasks = ref<TaskItem[]>([]);
 const selectedTaskId = ref<number | null>(null);
 const loading = ref(false);
+const taskApplications = ref<TaskApplication[]>([]);
+const applicationsLoading = ref(false);
+
+const applicationStatusOptions: { label: string; value: TaskApplication["status"] }[] = [
+  { label: "待应用", value: "TODO" },
+  { label: "进行中", value: "DOING" },
+  { label: "已完成", value: "DONE" },
+];
 
 const selectedTask = computed(() =>
   tasks.value.find((item) => item.taskId === selectedTaskId.value) || null
@@ -62,6 +75,36 @@ async function loadTaskStats(taskNum: string) {
   }
 }
 
+async function loadTaskApplications(taskNum: string) {
+  applicationsLoading.value = true;
+  try {
+    const res = await getTaskApplications(taskNum);
+    taskApplications.value = res?.data || [];
+  } catch (error: any) {
+    taskApplications.value = [];
+    ElMessage.error(error?.message || "应用场景加载失败");
+  } finally {
+    applicationsLoading.value = false;
+  }
+}
+
+const changeApplicationStatus = async (item: TaskApplication) => {
+  try {
+    await updateTaskApplication(item.id, {
+      title: item.title,
+      description: item.description,
+      resourceUrl: item.resourceUrl,
+      status: item.status,
+    });
+    ElMessage.success("应用场景状态已更新");
+  } catch (error: any) {
+    ElMessage.error(error?.message || "状态更新失败");
+    if (selectedTask.value) {
+      await loadTaskApplications(selectedTask.value.taskNum);
+    }
+  }
+};
+
 const fetchTasks = async () => {
   loading.value = true;
   try {
@@ -91,10 +134,12 @@ const fetchTasks = async () => {
     selectedTaskId.value = nextSelectedTaskId;
     if (targetTask && shouldLoadStats) {
       await loadTaskStats(targetTask.taskNum);
+      await loadTaskApplications(targetTask.taskNum);
     }
   } catch (error: any) {
     tasks.value = [];
     selectedTaskId.value = null;
+    taskApplications.value = [];
     ElMessage.error(error?.message || "任务列表加载失败，请重试");
   } finally {
     loading.value = false;
@@ -105,6 +150,9 @@ watch(selectedTaskId, (newId) => {
   const task = tasks.value.find(t => t.taskId === newId);
   if (task) {
     loadTaskStats(task.taskNum);
+    loadTaskApplications(task.taskNum);
+  } else {
+    taskApplications.value = [];
   }
 });
 
@@ -229,6 +277,39 @@ onMounted(() => {
                 </div>
               </div>
             </div>
+
+            <div class="detail-block" v-loading="applicationsLoading">
+              <p class="label">应用场景</p>
+              <div v-if="taskApplications.length > 0" class="application-list">
+                <div
+                  v-for="item in taskApplications"
+                  :key="item.id"
+                  class="application-item"
+                >
+                  <div class="application-main">
+                    <strong>{{ item.title }}</strong>
+                    <el-select
+                      v-model="item.status"
+                      size="small"
+                      class="application-status"
+                      @change="changeApplicationStatus(item)"
+                    >
+                      <el-option
+                        v-for="option in applicationStatusOptions"
+                        :key="option.value"
+                        :label="option.label"
+                        :value="option.value"
+                      />
+                    </el-select>
+                  </div>
+                  <p v-if="item.description">{{ item.description }}</p>
+                  <el-link v-if="item.resourceUrl" :href="item.resourceUrl" target="_blank" type="primary">
+                    {{ item.resourceUrl }}
+                  </el-link>
+                </div>
+              </div>
+              <p v-else class="empty-text">暂未设置应用场景</p>
+            </div>
           </template>
           <el-empty v-else description="暂无任务，请先创建任务" />
         </article>
@@ -365,6 +446,51 @@ onMounted(() => {
   color: var(--text-primary);
 }
 
+.application-list {
+  display: flex;
+  flex-direction: column;
+  gap: 10px;
+}
+
+.application-item {
+  padding: 12px 0;
+  border-bottom: 1px solid var(--border-soft);
+}
+
+.application-item:first-child {
+  padding-top: 0;
+}
+
+.application-item:last-child {
+  border-bottom: 0;
+  padding-bottom: 0;
+}
+
+.application-main {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  gap: 12px;
+}
+
+.application-main strong {
+  min-width: 0;
+  color: var(--text-primary);
+  word-break: break-word;
+}
+
+.application-status {
+  width: 112px;
+  flex: 0 0 auto;
+}
+
+.application-item p {
+  margin: 8px 0 0;
+  color: var(--text-secondary);
+  font-size: 13px;
+  word-break: break-word;
+}
+
 .action-card {
   padding: 16px;
   display: flex;
@@ -404,5 +530,14 @@ onMounted(() => {
   .action-card {
     grid-template-columns: 1fr;
   }
+
+  .application-main {
+    align-items: flex-start;
+    flex-direction: column;
+  }
+
+  .application-status {
+    width: 100%;
+  }
 }
 </style>