refactor(util/path): re-export normalizeHastElement from @quartz-community/utils

The normalizeHastElement helper and its internal _rebaseHastElement
have been promoted to @quartz-community/utils so that plugins can
consume the same cross-slug HAST rebasing logic Quartz core uses
for transclude expansion. Previously they lived only in Quartz's
internal util/path module, which out-of-tree plugins (e.g.
canvas-page, whose buildEmbeddedContent embeds vfile.data.htmlAst
from arbitrary pages) could not import from.

normalizeRelativeURLs and its DOM-element sibling _rebaseHtmlElement
stay local - those operate on DOM Elements at runtime, not HAST AST
nodes, and belong with Quartz's DOM-specific code.

package-lock.json

@@ -1857,7 +1857,7 @@
     },
     "node_modules/@quartz-community/utils": {
       "version": "0.1.0",
-      "resolved": "git+ssh://git@github.com/quartz-community/utils.git#4dda81bc82b90f5bceaa3582e81547ce41cc581b",
+      "resolved": "git+ssh://git@github.com/quartz-community/utils.git#83f824b0ad495ae24b7f3524dd2049da76d24c2c",
       "dev": true,
       "license": "MIT",
       "dependencies": {

quartz/util/path.ts

@@ -21,6 +21,7 @@ export {
   slugTag,
   transformInternalLink,
   transformLink,
+  normalizeHastElement,
 } from "@quartz-community/utils"
 
 export type {
@@ -33,11 +34,6 @@ export type {
 
 // --- v5-specific exports below ---
 
-import type { Element as HastElement } from "hast"
-import type { FullSlug } from "@quartz-community/utils"
-import { isRelativeURL, joinSegments, resolveRelative } from "@quartz-community/utils"
-import { clone } from "./clone"
-
 export const QUARTZ = "quartz"
 
 // from micromorph/src/utils.ts
@@ -54,32 +50,3 @@ export function normalizeRelativeURLs(el: Element | Document, destination: strin
     _rebaseHtmlElement(item, "src", destination)
   })
 }
-
-const _rebaseHastElement = (
-  el: HastElement,
-  attr: string,
-  curBase: FullSlug,
-  newBase: FullSlug,
-) => {
-  if (el.properties?.[attr]) {
-    if (!isRelativeURL(String(el.properties[attr]))) {
-      return
-    }
-
-    const rel = joinSegments(resolveRelative(curBase, newBase), "..", el.properties[attr] as string)
-    el.properties[attr] = rel
-  }
-}
-
-export function normalizeHastElement(rawEl: HastElement, curBase: FullSlug, newBase: FullSlug) {
-  const el = clone(rawEl) // clone so we dont modify the original page
-  _rebaseHastElement(el, "src", curBase, newBase)
-  _rebaseHastElement(el, "href", curBase, newBase)
-  if (el.children) {
-    el.children = el.children.map((child) =>
-      normalizeHastElement(child as HastElement, curBase, newBase),
-    )
-  }
-
-  return el
-}