The locked Client shell (desktop) is the persona surface for homeowners following along on their build. Routes under /client/* render inside this shell. The IA is intentionally narrower than builder, lender, or contractor; clients see what they're entitled to under their visibility profile (DS-22), nothing more.

Mobile companions ship as separate client/*-mobile.html files at 360px viewport, mirroring the existing builder and contractor mobile pattern. The desktop shell here remains the canonical layout. A future native iOS app will replace the mobile companion files entirely. Client visibility is gated per-project via the Visibility Profile (Standard, Premium, Construction-finance lite, Custom · DS-22).