feat(site): homepage 落地页 + docsify 用户手册文档站(/docs /homepage 随二进制发布)

- homepage/:品牌落地页(Hero/特性/快速开始),参考 opsxapi 站点风格,绿色品牌系
- docs/:docsify 文档站 + user-guide 十篇手册(安装/向导/采集/查询/分析/告警/授权/备份/FAQ)
- 后端 serveStaticDir 挂载 /docs 与 /homepage(可执行文件相对定位,独立于前端 dist)

docs/index.html

@@ -0,0 +1,31 @@
+<!doctype html>
+<html lang="zh-CN">
+<head>
+<meta charset="utf-8">
+<meta name="viewport" content="width=device-width, initial-scale=1">
+<title>LokiStack 用户手册</title>
+<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
+<link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 64 64'%3E%3Crect width='64' height='64' rx='14' fill='%23059669'/%3E%3Ctext x='32' y='44' font-size='34' font-weight='800' fill='%23fff' text-anchor='middle' font-family='sans-serif'%3EL%3C/text%3E%3C/svg%3E">
+<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/docsify-themeable@0/dist/css/theme-simple.css">
+<style>
+  :root { --theme-color: #059669; --base-font-size: 15px; }
+  body { font-family: -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif; }
+</style>
+</head>
+<body>
+<div id="app"></div>
+<script>
+  window.$docsify = {
+    name: 'LokiStack 用户手册',
+    repo: 'https://gitea.91ai.io/rlwj-lab/LokiStack',
+    homepage: 'user-guide/README.md',
+    loadSidebar: 'user-guide/_sidebar.md',
+    loadNavbar: false,
+    search: { placeholder: '搜索手册', noData: '没有匹配结果' },
+    subMaxLevel: 3,
+  };
+</script>
+<script src="https://cdn.jsdelivr.net/npm/docsify@4/lib/docsify.min.js"></script>
+<script src="https://cdn.jsdelivr.net/npm/docsify@4/lib/plugins/search.min.js"></script>
+</body>
+</html>