feat: 将Markdown渲染改为HTML渲染

- CMS相关字段由Markdown改为WYSIWYG，前端做出对应更改
- AssetUrl重写：将CMS地址重写为本地API

server/utils/rewriteAssetUrls.test.ts

@@ -0,0 +1,14 @@
+import { test, expect, describe } from 'vitest';
+import { rewriteAssetUrls } from './rewriteAssetUrls';
+
+describe('rewriteAssetUrls', () => {
+  const cmsBase = 'https://cms.example.com';
+  const proxyBase = '/api/assets';
+  const baseHTML =
+    '<img src="https://cms.example.com/assets/rand-om__-uuid-1234" /><a href="https://cms.example.com/assets/rand-om__-uuid-5678">Link</a><video src="https://otherdomain.com/video.mp4"></video>';
+  test('rewrites asset URLs correctly', () => {
+    expect(rewriteAssetUrls(baseHTML, cmsBase, proxyBase)).toBe(
+      '<img src="/api/assets/rand-om__-uuid-1234"><a href="/api/assets/rand-om__-uuid-5678">Link</a><video src="https://otherdomain.com/video.mp4"></video>'
+    );
+  });
+});

server/utils/rewriteAssetUrls.ts

@@ -0,0 +1,36 @@
+import { parseDocument, DomUtils } from 'htmlparser2';
+import serialize from 'dom-serializer';
+
+export function rewriteAssetUrls(
+  html: string,
+  cmsBase: string,
+  proxyBase: string
+) {
+  if (!html) return html;
+
+  const dom = parseDocument(html);
+
+  const elements = DomUtils.findAll(
+    (elem) => elem.type === 'tag',
+    dom.children
+  );
+
+  for (const el of elements) {
+    // img / video / source -> src
+    // a -> href
+    const tag = el.name.toLowerCase();
+    const attr = tag === 'a' ? 'href' : 'src';
+
+    if (!el.attribs || !el.attribs[attr]) continue;
+
+    const url = el.attribs[attr];
+
+    // 替换cmsBase为proxyBase
+    if (url.startsWith(cmsBase)) {
+      const uuid = url.replace(`${cmsBase}/assets/`, '');
+      el.attribs[attr] = `${proxyBase}/${uuid}`;
+    }
+  }
+
+  return serialize(dom);
+}