feat: 重设计首页突出 Harness 与知识库协作

- hero 区改版：氛围背景光晕+渐隐网格，右侧玻璃卡片可视化
- 右侧改为 Harness → RAG 引擎 → 知识库 横向数据流，中间枢纽带脉冲环、双向光点对流
- 统计改用实时 GitHub 数据（Stars/Forks/Issues），不再依赖 branding 配置
- 移除 info.template.yaml 的 features/actions 及 store 中对应 getter
- 「查看文档」升级为次按钮，左侧内容顶部对齐微调

backend/package/yuxi/config/static/info.template.yaml

@@ -20,40 +20,6 @@ branding:
     - "让智能体可落地，让流程可编排，让协作可扩展"
     - "让数据可沉淀，让能力可复用，让系统可进化"
 
-features:
-  - label: "GitHub Stars"
-    value: "4800+"
-    description: "开发者社区的认可与支持"
-    icon: "stars"
-  - label: "已解决 Issues"
-    value: "300+"
-    description: "持续改进和问题解决能力"
-    icon: "issues"
-  - label: "累计 Commits"
-    value: "1600+"
-    description: "活跃的开发迭代和功能更新"
-    icon: "commits"
-  - label: "开源协议"
-    value: "MIT License"
-    description: "完全免费，支持商业使用"
-    icon: "license"
-
-actions:
-  - name: "演示视频"
-    icon: "video"
-    url: "https://www.bilibili.com/video/BV1DF14BTETq"
-  - name: "文档中心"
-    icon: "docs"
-    url: "https://xerrors.github.io/Yuxi/"
-  - name: "提交 Issue"
-    icon: "issue"
-    url: "https://github.com/xerrors/Yuxi/issues/new/choose"
-  - name: "开发路线图"
-    icon: "roadmap"
-    url: "https://xerrors.github.io/Yuxi/develop-guides/roadmap.html"
-
-
-
 # 页脚信息
 footer:
   copyright: "© 江南语析 2026 v{{YUXI_VERSION}}"

web/src/stores/info.js

@@ -30,11 +30,6 @@ export const useInfoStore = defineStore('info', () => {
       }
   )
 
-  // 计算属性 - 功能特性
-  const features = computed(() => infoConfig.value.features || [])
-
-  const actions = computed(() => infoConfig.value.actions || [])
-
   // 计算属性 - 页脚信息
   const footer = computed(() => ({
     copyright: '',
@@ -89,9 +84,7 @@ export const useInfoStore = defineStore('info', () => {
     // 计算属性
     organization,
     branding,
-    features,
     footer,
-    actions,
 
     // 方法
     toggleDebugMode,