feat(export): 交付 Markdown → HTML 导出服务

实现 Export Service 完整生命周期：mistune AST → Document AST → HtmlExporter 渲染完整 HTML5，异步任务注册表 + 取消 + 24h 产物过期。新增 5 个 /api/exports 端点与 15 项测试；pdf/docx 与函数图像静态渲染留待后续 PR。
2026-09-04 09:02:33 +08:00
parent 2e496462a9
commit 5c2441464d
18 changed files with 1358 additions and 17 deletions
@@ -9,6 +9,7 @@ dependencies = [
    "fastapi>=0.116,<1.0",
    "httpx>=0.28,<1.0",
    "jsonschema>=4.25,<5.0",
+    "mistune>=3.0,<4.0",
    "pyyaml>=6.0,<7.0",
    "referencing>=0.36,<1.0",
    "sqlite-vec>=0.1.9",