Strips docs/ prefix from Tolaria-generated links, collapses /index suffixes,
removes .md extensions, and produces root-relative URLs (/page/path/) that
work from any page regardless of depth. Images get root-relative asset paths.
- New package _extensions/wikilinks.py: preprocessor that converts
[[Page Name]], [[Page|Text]], [[Page#anchor|Text]], and ![[img]]
to standard Markdown links before parsing
- Skips wiki links inside fenced/inline code blocks
- Slugifies targets: lowercase, spaces→hyphens
- Registered as markdown extension in zensical.toml
- Updated CI workflow to pip install -e . for the _extensions package
- First usage: [[docs/contributing/index]] in markdown.md
