Instead of always creating all page folders, the post-scenario menu
now offers: [N] next scenario, [S] scaffold all page folders,
[D] create first page and design, [C] generate overview. Page folder
structure uses NN.step-slug naming with Sketches/ subfolder.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Phase 4 now checks for existing Phase 3 scenarios before page design.
If no scenario exists, redirects user to Phase 3's 8-question dialog
instead of attempting a lighter inline version.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>