feat(home-page): add hero sorting function

1. 新增首页工具栏排序控件，支持按职业/星级排序及升降序切换
2. 实现排序逻辑，保留原始数组下标保证编辑定位准确
3. 更新样式文件，添加排序控件组的布局样式

put/web/src/App.vue

@@ -13,11 +13,22 @@
       <!-- 首页：英雄卡片列表 -->
       <div class="home-toolbar">
         <span class="muted">共 {{ heroes.length }} 个英雄</span>
+        <div class="toolbar-sort">
+          <el-radio-group v-model="sortKey" size="small">
+            <el-radio-button value="none">默认</el-radio-button>
+            <el-radio-button value="role">按职业</el-radio-button>
+            <el-radio-button value="rarity">按星级</el-radio-button>
+          </el-radio-group>
+          <el-radio-group v-if="sortKey !== 'none'" v-model="sortOrder" size="small">
+            <el-radio-button value="asc">升序</el-radio-button>
+            <el-radio-button value="desc">降序</el-radio-button>
+          </el-radio-group>
+        </div>
         <el-button size="small" type="primary" @click="addHero">+ 新建英雄</el-button>
       </div>
       <section class="hero-rows">
         <div v-if="!heroes.length" class="empty">暂无英雄，点击右上角「新建英雄」开始配置</div>
-        <div v-for="(h, i) in heroes" :key="h.uuid" class="hero-row" @click="openEdit(i)">
+        <div v-for="{ h, i } in sortedHeroes" :key="h.uuid" class="hero-row" @click="openEdit(i)">
           <div class="row-main">
             <span class="row-uuid">{{ h.uuid }}</span>
             <span class="row-name">{{ h.name || '(未命名)' }}</span>
@@ -178,7 +189,7 @@
 </template>
 
 <script setup>
-import { ref, computed, onMounted } from 'vue'
+import { ref, computed, watch, onMounted } from 'vue'
 import { ElMessage, ElMessageBox } from 'element-plus'
 import { api } from './api'
 import {
@@ -200,6 +211,28 @@ const editVisible = ref(false)
 
 const current = computed(() => heroes.value[activeIdx.value])
 
+// 首页列表排序：none 原始顺序 / role 按职业枚举序（坦克→辅助）/ rarity 按星级
+const sortKey = ref('none')
+const sortOrder = ref('desc')
+// 切换排序维度时重置方向：职业升序直观（坦克在前），星级降序直观（高星在前）
+watch(sortKey, (k) => { sortOrder.value = k === 'role' ? 'asc' : 'desc' })
+
+// 排序视图：携带原始下标，保证点击卡片仍能定位到 heroes 中的编辑对象，且不改写保存顺序
+const sortedHeroes = computed(() => {
+  const list = heroes.value.map((h, i) => ({ h, i }))
+  if (sortKey.value === 'none') return list
+  const dir = sortOrder.value === 'asc' ? 1 : -1
+  const roleIdx = (key) => HERO_ROLES.findIndex((r) => r.key === key)
+  list.sort((a, b) => {
+    const d = sortKey.value === 'role'
+      ? roleIdx(a.h.roleKey) - roleIdx(b.h.roleKey)
+      : (a.h.rarity || 0) - (b.h.rarity || 0)
+    // 同维度内按 uuid 升序兜底，保证排序稳定
+    return d !== 0 ? d * dir : a.h.uuid - b.h.uuid
+  })
+  return list
+})
+
 const skillMap = computed(() => meta.value?.SkillSet || {})
 const allSkills = computed(() => Object.values(skillMap.value).sort((a, b) => a.uuid - b.uuid))
 const fieldOptions = computed(() => Object.values(meta.value?.FieldSkillSet || {}).sort((a, b) => a.uuid - b.uuid))