Function moveNote

apps/desktop/src/main/vault.ts:3656–3687

(
  root: string,
  oldRel: string,
  targetFolder: NoteFolder,
  targetSubpath: string
)

 * collision), then re-reads meta for the new location.
 */
export async function moveNote(
  root: string,
  oldRel: string,
  targetFolder: NoteFolder,
  targetSubpath: string
): Promise<NoteMeta> {
  const oldAbs = resolveSafe(root, oldRel)
  const filename = path.basename(oldAbs)
  const cleanSub = targetSubpath.replace(/^\/+|\/+$/g, '')
  const targetRoot = await folderRoot(root, targetFolder)
  const destDir = cleanSub ? resolveSafe(targetRoot, cleanSub) : targetRoot

  // No-op if the source already lives at the destination.
  if (path.dirname(oldAbs) === destDir) {
    const folder = folderOf(root, oldAbs)
    if (!folder) throw new Error(`Note not in a known folder: ${oldRel}`)
    return await readMeta(root, oldAbs, folder)
  }

  await fs.mkdir(destDir, { recursive: true })
  const ext = path.extname(filename)
  const baseTitle = path.basename(filename, ext)
  const finalTitle = await uniqueTitle(destDir, baseTitle)
  const destAbs = path.join(destDir, `${finalTitle}${ext}`)
  await fs.rename(oldAbs, destAbs)
  const meta = await readMeta(root, destAbs, targetFolder)
  await moveNoteComments(root, oldRel, meta.path)
  invalidateNoteMetaCache(root, oldRel)
  invalidateNoteMetaCache(root, meta.path)
  invalidateVaultTextSearchCache(root)
  return meta
}

export async function duplicateNote(root: string, rel: string): Promise<NoteMeta> {
  const abs = resolveSafe(root, rel)