Widen the status page and wrap the short queue/certificate cards in
.split so the stack is shorter; other checks stay full width.
Co-authored-by: Cursor <cursoragent@cursor.com>
Lay out view, auth, validate, and handlers under internal/web while keeping
the cmd/panel API unchanged; update roadmap and changelog for web-split closure.
Co-authored-by: Cursor <cursoragent@cursor.com>