feat: 调整导航菜单命名并优化忽略记录图标

- 概览改为缓存概览
- 检索改为我的缓存
- 已忽略的包改为忽略记录，图标由禁止标识换为记录清单

frontend/src/components/AppTopbar.vue

@@ -15,11 +15,11 @@ const emit = defineEmits(['rescan'])
 const menuOpen = ref(false)
 
 const navs = [
-  { path: '/', label: '概览', emo: '🏠' },
-  { path: '/search', label: '检索', emo: '🔍' },
+  { path: '/', label: '缓存概览', emo: '🏠' },
+  { path: '/search', label: '我的缓存', emo: '🔍' },
   { path: '/thresholds', label: '阈值', emo: '⚙️' },
   { path: '/logs', label: '操作日志', emo: '🕒' },
-  { path: '/ignored', label: '已忽略的包', emo: '🚫' },
+  { path: '/ignored', label: '忽略记录', emo: '📋' },
 ]
 
 function go(path) {

frontend/src/components/MobileTabbar.vue

@@ -10,11 +10,11 @@ const route = useRoute()
 const router = useRouter()
 
 const tabs = [
-  { path: '/', label: '概览', emo: '🏠' },
-  { path: '/search', label: '检索', emo: '🔍' },
+  { path: '/', label: '缓存概览', emo: '🏠' },
+  { path: '/search', label: '我的缓存', emo: '🔍' },
   { path: '/thresholds', label: '阈值', emo: '⚙️' },
   { path: '/logs', label: '操作日志', emo: '🕒' },
-  { path: '/ignored', label: '已忽略', emo: '🚫' },
+  { path: '/ignored', label: '忽略记录', emo: '📋' },
 ]
 
 function go(path) {

frontend/src/views/IgnoredView.vue

@@ -23,7 +23,7 @@ async function doUnignore(pkg) {
 
 <template>
   <div class="page-inner">
-    <div class="page-title"><span class="emo">🚫</span>已忽略的包</div>
+    <div class="page-title"><span class="emo">📋</span>忽略记录</div>
     <div class="page-sub">共 <b>{{ ignoredList.length }}</b> 个已忽略包 · 移出后自动恢复状态判断</div>
 
     <div v-if="state.loading" class="loading-tip">⏳ 加载中…</div>