Document the merged workstation: Stats gallery, Clear, live counts. Getting started, View, Control, Crawl, Catalog, and Architecture match main after #270 and #271. Same-host finish, Tika board, and catalog reset are first-class. Old Spark/ES/SCE pages stay under Old.
Rewrite wiki for the View / Control / Crawl workstation. Current docs: Home, Getting started, Architecture, View, Control, Crawl, Catalog, Heritage. 2016–2023 Spark/ES/SCE pages renamed Old-*.