Add a four-page chapter after Plan Larger Work: Start in an Existing
Codebase (the repo is the knowledge; size the work from the source),
Set and Maintain Project Context, Getting Deeper as the worked example,
and The Theory of Project Context as optional last reading.
Retire six English pages with redirects, drop the empty English
Tutorials sidebar group, collapse Plan Larger Work and Existing
Codebases in the sidebar, reflow how-to and explanation orders, and
retarget Welcome, README, Plan, Reference, and style-guide links.
Localized copies stay as deferred translation work.
Alex Verkhovsky