删除项目列表模块（重复内容）

frontend/src/views/StudyHome.vue

@@ -83,12 +83,12 @@
   </div>
   
   <div v-else class="empty-state-container">
-    <el-empty description="请先在顶部或项目列表选择一个当前项目" />
+    <el-empty description="请先在顶部选择一个当前项目" />
   </div>
 </template>
 
 <script setup lang="ts">
-import { computed, onMounted, ref } from "vue";
+import { computed, onMounted, ref, watch } from "vue";
 import { useAuthStore } from "../store/auth";
 import { useStudyStore } from "../store/study";
 import { fetchFinanceSummary, fetchOverdueAesCount, fetchOverdueQueriesCount, fetchProgress } from "../api/dashboard";
@@ -151,9 +151,24 @@ const loadData = async () => {
   }
 };
 
+const resetData = () => {
+  progress.value = null;
+  financeSummary.value = null;
+  overdueAes.value = 0;
+  overdueQueries.value = 0;
+};
+
 onMounted(() => {
   loadData();
 });
+
+watch(
+  () => study.currentStudy?.id,
+  () => {
+    resetData();
+    loadData();
+  }
+);
 </script>
 
 <style scoped>