Replaces the earlier sidebar+small-phone mock with D9's real layout: App/
Website/Email tabs (App is the only one with real content, so these are
static labels not a working control), a full-size phone mock, and a public-
site mock, plus the "Where the brand shows up" list. The phone's "Next up"
card now uses primary, not secondary -- it's a notice, not a call to action,
so it shouldn't compete visually with an actual accent-coloured button.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01ECGMEwrc2k4D8VQuwjstj9