refactor(components): 统一图标组件使用CoiIcon

- 全面替换nova-icon为CoiIcon组件，提升组件一致性
- 优化用户中心路由跳转，修正个人中心页面路径
- 统一布局组件中的图标引用，确保视觉风格一致
- 完善图标系统，为后续功能扩展奠定基础

src/components/common/UserCenter.vue

@@ -80,7 +80,7 @@ const avatar = computed(() => {
 
 // 处理个人中心点击
 function handlePersonalCenter() {
-  router.push('/personal-center')
+  router.push('/personal-center/index')
 }
 
 // 处理退出登录

src/layouts/components/common/NoticeList.vue

@@ -9,7 +9,7 @@
             </n-ellipsis>
           </template>
           <template #avatar>
-            <nova-icon :icon="item.icon" :size="30" class="c-primary" />
+            <CoiIcon :icon="item.icon" :size="30" class="c-primary" />
           </template>
           <template v-if="item.tagTitle" #header-extra>
             <n-tag :bordered="false" :type="item.tagType" size="small">

src/layouts/components/header/Breadcrumb.vue

@@ -10,7 +10,7 @@
       class="flex-center gap-2 cursor-pointer split"
       @click="router.push(item.path)"
     >
-      <nova-icon v-if="appStore.showBreadcrumbIcon" :icon="item.meta.icon" />
+      <CoiIcon v-if="appStore.showBreadcrumbIcon" :icon="item.meta.icon" />
       <span class="whitespace-nowrap">{{ $t(`route.${String(item.name)}`, item.meta.title) }}</span>
     </n-el>
   </TransitionGroup>

src/layouts/components/header/Search.vue

@@ -41,7 +41,7 @@
         >
           <div class="grid grid-rows-2 grid-cols-[40px_1fr_30px] h-full p-2">
             <div class="row-span-2 place-self-center">
-              <nova-icon :icon="option.icon" />
+              <CoiIcon :icon="option.icon" />
             </div>
             <span>{{ option.label }}</span>
             <icon-park-outline-right class="row-span-2 place-self-center" />

src/layouts/components/tab/TabBarItem.vue

@@ -9,7 +9,7 @@
     style="transition: box-shadow .3s var(--n-bezier), color .3s var(--n-bezier), background-color .3s var(--n-bezier), border-color .3s var(--n-bezier);"
   >
     <div class="flex-center gap-2 text-nowrap">
-      <nova-icon :icon="route.meta.icon" />
+      <CoiIcon :icon="route.meta.icon" />
       <span>{{ $t(`route.${String(route.name)}`, route.meta.title) }}</span>
       <button
         v-if="closable"

src/views/demo/icons/index.vue

@@ -25,7 +25,7 @@
         大大大：<svg-icons-cool class="text-4em" />
       </div>
       <div>
-        nova-icon组件加载：<nova-icon icon="local:cool" />
+        CoiIcon组件加载：<CoiIcon icon="local:cool" />
       </div>
     </n-card>
   </n-space>