Update doc-links task to detect and reject wiki-links that have spaces
in the target or around the pipe separator. Fix all 60 existing links
that had spaces (e.g., [[target | Text]] → [[target|Text]]).
This ensures compatibility with obsidian.nvim which doesn't handle
spaced wiki-links correctly.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>