`[[page.wiki]]` should resolve identically to `[[page]]`. The index
keyed by stem, so links with the explicit extension fell through to
the broken-link diagnostic and to-page navigation failed. Strip the
configured extension before every page lookup (resolve, definition,
backlinks, classify_link, classify_outgoing) and stop appending the
extension in synthesise_page_uri when it's already present.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
gffranco
2aec51274e