refactor: move utils

src/components/md-link.tsx

@@ -2,7 +2,7 @@ import { customElement, noShadowDOM } from "solid-element";
 import { createSignal, onCleanup } from "solid-js";
 import { render } from "solid-js/web";
 import { Article } from "./Article";
-import { resolvePath } from "../utils/path";
+import { resolvePath } from "./utils/path";
 
 customElement("md-link", {}, (props, { element }) => {
   noShadowDOM();
@@ -11,7 +11,7 @@ customElement("md-link", {}, (props, { element }) => {
   const [expanded, setExpanded] = createSignal(false);
   let articleContainer: HTMLDivElement | undefined;
   let disposeArticle: (() => void) | null = null;
-  let articleElement: HTMLElement | undefined;
+  let articleElement: HTMLElement | null | undefined;
 
   // 从 element 的 textContent 获取链接目标（支持 path#section 语法）
   const rawLinkSrc = element?.textContent?.trim() || "";