feat(component): add TagCloud with count-based sizing

src/components/TagCloud.vue

@@ -0,0 +1,113 @@
+<script setup lang="ts">
+import { ref, onMounted } from 'vue'
+import { useRouter } from 'vue-router'
+import { tagApi } from '@/api/client'
+import type { Tag } from '@/generated/api'
+
+const router = useRouter()
+const tags = ref<Tag[]>([])
+const loading = ref(false)
+const error = ref<string | null>(null)
+
+function sizeClass(count: number): string {
+  if (count >= 5) return 'tag-lg'
+  if (count >= 2) return 'tag-md'
+  return 'tag-sm'
+}
+
+function goToTag(tag: Tag) {
+  router.push({ name: 'Home', query: { tag: tag.slug } })
+}
+
+async function load() {
+  loading.value = true
+  error.value = null
+  try {
+    const resp = await tagApi.apiTagsGet()
+    tags.value = resp.data.data ?? []
+  } catch (e) {
+    console.error(e)
+    error.value = '标签加载失败'
+  } finally {
+    loading.value = false
+  }
+}
+
+onMounted(load)
+</script>
+
+<template>
+  <div class="tag-cloud">
+    <h3 class="tag-cloud-title">标签云</h3>
+    <p v-if="error" class="error-text">{{ error }}</p>
+    <p v-else-if="loading" class="hint-text">加载中...</p>
+    <p v-else-if="tags.length === 0" class="hint-text">暂无标签</p>
+    <div v-else class="tag-cloud-items">
+      <button
+        v-for="tag in tags"
+        :key="tag.id"
+        class="tag-item"
+        :class="sizeClass(tag.articleCount)"
+        @click="goToTag(tag)"
+      >
+        {{ tag.name }}
+      </button>
+    </div>
+  </div>
+</template>
+
+<style scoped>
+.tag-cloud {
+  background: #fff;
+  border: 1px solid #e5e5ea;
+  border-radius: 8px;
+  padding: 16px;
+}
+
+.tag-cloud-title {
+  margin: 0 0 12px;
+  font-size: 16px;
+}
+
+.tag-cloud-items {
+  display: flex;
+  flex-wrap: wrap;
+  gap: 8px;
+}
+
+.tag-item {
+  border: none;
+  background: #eef3ff;
+  color: #3b5bdb;
+  border-radius: 12px;
+  cursor: pointer;
+  font-size: 13px;
+  padding: 4px 12px;
+}
+
+.tag-item:hover {
+  background: #dbe4ff;
+}
+
+.tag-lg {
+  font-size: 17px;
+  padding: 6px 16px;
+}
+
+.tag-md {
+  font-size: 14px;
+  padding: 5px 14px;
+}
+
+.tag-sm {
+  font-size: 12px;
+}
+
+.error-text {
+  color: #d33c3c;
+}
+
+.hint-text {
+  color: #8a93a3;
+}
+</style>

src/views/HomeView.vue

@@ -1,9 +1,13 @@
 <script setup lang="ts">
 import { ref, onMounted } from 'vue'
+import { useRoute } from 'vue-router'
 import { articleApi } from '@/api/client'
 import { ArticleStatus, type ArticleListItem } from '@/generated/api'
 import ArticleCard from '@/components/ArticleCard.vue'
 import Pagination from '@/components/Pagination.vue'
+import TagCloud from '@/components/TagCloud.vue'
+
+const route = useRoute()
 
 const articles = ref<ArticleListItem[]>([])
 const page = ref(1)
@@ -16,7 +20,8 @@ async function load() {
   loading.value = true
   error.value = null
   try {
-    const resp = await articleApi.apiArticlesGet(page.value, size, ArticleStatus.Published)
+    const tag = (route.query.tag as string) || undefined
+    const resp = await articleApi.apiArticlesGet(page.value, size, ArticleStatus.Published, tag)
     const data = resp.data.data
     articles.value = (data?.list as ArticleListItem[]) ?? []
     totalPages.value = data?.totalPages ?? 0
@@ -37,19 +42,40 @@ onMounted(load)
 </script>
 
 <template>
-  <div>
-    <h1 class="page-title">最新文章</h1>
-    <p v-if="error" class="error-text">{{ error }}</p>
-    <p v-else-if="loading" class="hint-text">加载中...</p>
-    <p v-else-if="articles.length === 0" class="hint-text">暂无已发布文章</p>
-    <div v-else>
-      <ArticleCard v-for="article in articles" :key="article.id" :article="article" />
-      <Pagination :page="page" :total-pages="totalPages" @change="onPageChange" />
+  <div class="home-layout">
+    <div class="home-main">
+      <h1 class="page-title">{{ route.query.tag ? '筛选结果' : '最新文章' }}</h1>
+      <p v-if="error" class="error-text">{{ error }}</p>
+      <p v-else-if="loading" class="hint-text">加载中...</p>
+      <p v-else-if="articles.length === 0" class="hint-text">暂无已发布文章</p>
+      <div v-else>
+        <ArticleCard v-for="article in articles" :key="article.id" :article="article" />
+        <Pagination :page="page" :total-pages="totalPages" @change="onPageChange" />
+      </div>
     </div>
+    <aside class="home-sidebar">
+      <TagCloud />
+    </aside>
   </div>
 </template>
 
 <style scoped>
+.home-layout {
+  display: flex;
+  gap: 24px;
+  align-items: flex-start;
+}
+
+.home-main {
+  flex: 1;
+  min-width: 0;
+}
+
+.home-sidebar {
+  width: 260px;
+  flex-shrink: 0;
+}
+
 .page-title {
   font-size: 24px;
   margin: 0 0 20px;