部署文件和插件问题修复

src/theme/DocItem/Content/index.tsx

@@ -25,7 +25,7 @@ import dayjs from "dayjs";
  - user doesn't ask to hide it with front matter
  - the markdown content does not already contain a top-level h1 heading
 */
-function useSyntheticTitle(): string | null {
+export function useSyntheticTitle(): string | null {
   const { metadata, frontMatter, contentTitle } = useDoc();
   const shouldRender =
     !frontMatter.hide_title && typeof contentTitle === "undefined";

src/theme/Heading/index.tsx

@@ -0,0 +1,34 @@
+import React from "react";
+import Heading from "@theme-original/Heading";
+import { useSyntheticTitle } from "../DocItem/Content";
+import { useDoc } from "@docusaurus/theme-common/internal";
+import dayjs from "dayjs";
+import { Detail } from "docusaurus-plugin-content-docs-ex/src";
+
+export default function HeadingWrapper(props) {
+  const syntheticTitle = useSyntheticTitle();
+  const doc = useDoc();
+  const detail = (doc.metadata as any).detail as Detail;
+
+  return (
+    <>
+      <Heading {...props}>
+        {props.children}
+        {detail && !syntheticTitle && (
+          <span
+            style={{
+              display: "block",
+              fontSize: "14px",
+              fontWeight: "normal",
+              marginBottom: "10px",
+              marginTop: "10px",
+            }}
+          >
+            {dayjs(detail.create_date).format("YYYY年MM月DD日")} · 阅读需{" "}
+            {Math.ceil(detail.reading_time.minutes)} 分钟
+          </span>
+        )}
+      </Heading>
+    </>
+  );
+}