强化前端格式检测

frontend/src/features/admin/views/AdminAnnouncementsView.vue

@@ -66,7 +66,7 @@ async function loadAnnouncements() {
     })
     announcements.value = result.items
     total.value = result.total
-  } catch (err) {
+  } catch {
     ElMessage.error('加载公告列表失败')
   } finally {
     loading.value = false
@@ -96,7 +96,7 @@ async function handleSave(data: CreateAnnouncementRequest | UpdateAnnouncementRe
     }
     dialogVisible.value = false
     loadAnnouncements()
-  } catch (err) {
+  } catch {
     ElMessage.error('保存失败')
   }
 }
@@ -161,11 +161,6 @@ async function handlePageChange() {
   await loadAnnouncements()
 }
 
-async function handleSizeChange() {
-  currentPage.value = 1
-  await loadAnnouncements()
-}
-
 function getCategoryLabel(category: string) {
   return categories.find(c => c.value === category)?.label || category
 }