feat: demo 加源码/npm 链接，构建时复制进主站 dist/leafer-demo/（vite 插件 + sitemap 路由）

packages/leafer-x-webfont/demo/index.html

@@ -29,7 +29,9 @@
   <p class="sub">
     LeaferJS 中文字体插件 —— 画布里的 Text 用什么字体，就只加载那几个字的子集（6 字 ≈ 6KB，而非 16MB）。
     服务端：<a href="https://webfont.shenzilong.cn" target="_blank">webfont.shenzilong.cn</a>
-    / <a href="https://github.com/2234839/web-font" target="_blank">GitHub</a>
+    / <a href="https://github.com/2234839/web-font/tree/new/packages/leafer-x-webfont" target="_blank">插件源码</a>
+    / <a href="https://github.com/2234839/web-font/blob/new/packages/leafer-x-webfont/demo/index.html" target="_blank">本页源码</a>
+    / <a href="https://www.npmjs.com/package/leafer-x-webfont" target="_blank">npm</a>
   </p>
 
   <div class="panel">

scripts/leafer-demo-plugin.ts

@@ -0,0 +1,27 @@
+/**
+ * 构建时把 packages/leafer-x-webfont/demo/index.html 复制进主站 dist。
+ *
+ * 该 demo 是零构建的纯静态单文件（依赖全走 jsDelivr CDN），不参与 vite-ssg 管线；
+ * 挂到主站 /leafer-demo/ 路径下，后端 staticFileMiddleware 已支持目录 → index.html 解析。
+ * 若 demo 未来变成多文件，需改为 copy 整个目录。
+ */
+import type { Plugin } from "vite";
+import { copyFileSync, mkdirSync } from "node:fs";
+import { dirname, resolve } from "node:path";
+import { fileURLToPath } from "node:url";
+
+export function leaferDemoPlugin(): Plugin {
+  const rootDir = dirname(dirname(fileURLToPath(import.meta.url)));
+  const source = resolve(rootDir, "packages/leafer-x-webfont/demo/index.html");
+  const target = resolve(rootDir, "dist/leafer-demo/index.html");
+
+  return {
+    name: "copy-leafer-demo",
+    apply: "build",
+    closeBundle() {
+      mkdirSync(dirname(target), { recursive: true });
+      copyFileSync(source, target);
+      console.log(`[leafer-demo] copied → dist/leafer-demo/index.html`);
+    },
+  };
+}

vite.config.ts

@@ -4,6 +4,7 @@ import vue from "@vitejs/plugin-vue";
 import { pilot } from "vite-plugin-pilot";
 import commonjs from "vite-plugin-commonjs";
 import { sitemapPlugin } from "./scripts/sitemap-plugin";
+import { leaferDemoPlugin } from "./scripts/leafer-demo-plugin";
 /**
  * 引入 vite-ssg 的类型声明 ——
  * vite-ssg 内部通过 declaration merging 给 vite 的 UserConfig 扩展了 ssgOptions 字段，
@@ -22,6 +23,7 @@ const sitemapRoutes = [
   { path: "/offline-subset", changefreq: "weekly" as const, priority: 0.8 },
   { path: "/docs", changefreq: "weekly" as const, priority: 0.8 },
   { path: "/demo", changefreq: "monthly" as const, priority: 0.6 },
+  { path: "/leafer-demo/", changefreq: "monthly" as const, priority: 0.6 },
 ];
 
 export default defineConfig({
@@ -132,6 +134,8 @@ export default { isInited: () => false, init: () => Promise.resolve(), encode: (
       },
     },
     sitemapPlugin(sitemapRoutes),
+    /** 把 leafer 插件 demo 复制进 dist/leafer-demo/（纯静态单文件，不走 vite-ssg 管线） */
+    leaferDemoPlugin(),
     /**
      * 构建时替换 index.html 中的时间戳占位符
      *