Plan and execute maintainer-owned refactors of oversized NemoClaw Fern documentation sections into focused one-topic pages with concise prose, journey-based nested navigation, non-clickable group nodes, canonical troubleshooting and reference ownership, deduplicated content, variant-aware route-style links, and complete redirects. Use when a docs page or section has grown too large, when reorganizing documentation information architecture or a table of contents, when splitting pages, shortening dense paragraph blocks, moving content across sections, consolidating duplicate guidance, or migrating URLs in docs/index.yml and fern/docs.yml. Trigger keywords - refactor docs, reorganize docs, split docs, nested TOC, documentation IA, one topic per page, big paragraphs, move troubleshooting, deduplicate docs, docs too long.