feat: add md-emfont component and format code

- Add `md-emfont` custom element for dynamic font loading
- Register `md-emfont` in component index
- Reformat `Article.tsx` and `index.ts` using double quotes and
  consistent spacing
- Fix indentation in `index.html`

src/components/Article.tsx

@@ -1,22 +1,32 @@
-import { Component, createEffect, onCleanup, Show, createResource, createMemo } from 'solid-js';
-import { parseMarkdown } from '../markdown';
-import { extractSection } from '../data-loader';
-import mermaid from 'mermaid';
-import {getIndexedData} from "../data-loader/file-index";
-import { resolvePath } from './utils/path';
-import { useLocation } from '@solidjs/router';
+import {
+  Component,
+  createEffect,
+  onCleanup,
+  Show,
+  createResource,
+  createMemo,
+} from "solid-js";
+import { parseMarkdown } from "../markdown";
+import { extractSection } from "../data-loader";
+import mermaid from "mermaid";
+import { getIndexedData } from "../data-loader/file-index";
+import { resolvePath } from "./utils/path";
+import { useLocation } from "@solidjs/router";
 
 export interface ArticleProps {
   src: string;
-  section?: string;  // 指定要显示的标题（不含 #）
-  iconPath?: string;  // 图标路径前缀，默认为 "./assets"，空字符串表示禁用
+  section?: string; // 指定要显示的标题（不含 #）
+  iconPath?: string; // 图标路径前缀，默认为 "./assets"，空字符串表示禁用
   onLoaded?: () => void;
   onError?: (error: Error) => void;
-  class?: string;  // 额外的 class 用于样式控制
+  class?: string; // 额外的 class 用于样式控制
   scrollToHash?: boolean; // 是否自动滚动到 hash
 }
 
-async function fetchArticleContent(params: { src: string; section?: string }): Promise<string> {
+async function fetchArticleContent(params: {
+  src: string;
+  section?: string;
+}): Promise<string> {
   const text = await getIndexedData(params.src);
   // 如果指定了 section，提取对应内容
   return params.section ? extractSection(text, params.section) : text;
@@ -28,17 +38,17 @@ async function fetchArticleContent(params: { src: string; section?: string }): P
 function scrollToHash(hash: string) {
   if (!hash) return;
   // 移除 # 前缀
-  const id = hash.startsWith('#') ? hash.slice(1) : hash;
+  const id = hash.startsWith("#") ? hash.slice(1) : hash;
   if (!id) return;
-  
+
   // 使用 decodeURIComponent 解码 ID（处理中文等特殊字符）
   const decodedId = decodeURIComponent(id);
-  
+
   // 尝试查找元素
   const element = document.getElementById(decodedId);
   if (element) {
     // 使用 scrollIntoView 滚动到元素
-    element.scrollIntoView({ behavior: 'instant', block: 'start' });
+    element.scrollIntoView({ behavior: "instant", block: "start" });
     return true;
   }
   return false;
@@ -52,12 +62,12 @@ export const Article: Component<ArticleProps> = (props) => {
   const location = useLocation();
   const [content, { refetch }] = createResource(
     () => ({ src: props.src, section: props.section }),
-    fetchArticleContent
+    fetchArticleContent,
   );
 
   // 解析 iconPath，默认为 "./assets"，空字符串表示禁用
   const iconPrefix = createMemo(() => {
-    if (props.iconPath === '') return undefined;  // 空字符串禁用图标前缀
+    if (props.iconPath === "") return undefined; // 空字符串禁用图标前缀
     return resolvePath(props.src, props.iconPath ?? "./assets");
   });
 
@@ -67,7 +77,7 @@ export const Article: Component<ArticleProps> = (props) => {
       props.onLoaded?.();
       // 内容加载完成后，渲染 mermaid 图表
       void mermaid.run();
-      
+
       // 内容渲染后检查 hash 并滚动
       scrollToHash(location.hash);
     }
@@ -78,7 +88,7 @@ export const Article: Component<ArticleProps> = (props) => {
   });
 
   return (
-    <article class={`prose ${props.class || ''}`} data-src={props.src}>
+    <article class={`prose ${props.class || ""}`} data-src={props.src}>
       <Show when={content.loading}>
         <div class="text-gray-500">加载中...</div>
       </Show>
@@ -86,7 +96,10 @@ export const Article: Component<ArticleProps> = (props) => {
         <div class="text-red-500">加载失败：{content.error?.message}</div>
       </Show>
       <Show when={!content.loading && !content.error && content()}>
-        <div class="relative" innerHTML={parseMarkdown(content()!, iconPrefix())} />
+        <div
+          class="relative"
+          innerHTML={parseMarkdown(content()!, iconPrefix())}
+        />
       </Show>
     </article>
   );