Protected _agentProtected _portWrite a page, then refresh index.md from the full page set.
InvalidWikiPageIdError when the page's id is refused (see isWikiPageId); nothing is written.
Protected readProtected writeIncremental: re-embed only pages whose body hash changed since the last index.
Optional opts: { Optional force?: booleanFull rebuild: clear the meta map and re-embed everything.
Read every page file under memory/ (excluding index.md and every file or folder whose name starts with a dot).