The wiki/ directory duplicated content that already exists in the native
MokoOnyx.wiki (14 pages; every tracked wiki/ file maps to a wiki page, so no
content is lost). Remove the 25 tracked files (top-level + guides/ + reference/
duplicates) and gitignore wiki/ so a local clone of the wiki repo can live there
untracked. Single source of truth: MokoOnyx.wiki.git.