Each keeps its full history under its own directory. cowork-complete-guide's
static site is served at /cowork-complete-guide/ on the unified Pages site.
Also fixes stale miti99dev.github.io host references left from the org move.
The quiz app is a pure client-side Next.js page, so it static-exports with
output: 'export' and a basePath under the site; the lesson thumbnail is a
self-contained HTML file served as that directory's index.
Each web demo builds with its base path under /ai-coding-workflow-labs/,
a single deploy workflow assembles them with a root index, and the
per-directory workflows from the standalone repos are removed.
tiennm99