feat(ui): redesign GeoIntel as Atlas Workbench

frontend/README.md

@@ -113,11 +113,19 @@ The workbench uses a task-based shell instead of a single long panel stack. `App
 
 The premium V1 presentation layer lives in `src/styles/premium.css`. It groups navigation by Workspace, Analyze and Deliver, removes the permanent inspector column, gives desktop/ultrawide workspaces stable readable widths and switches narrow screens to full-width content with a horizontally scrollable navigation rail. API calls and workflow state remain owned by the existing hooks.
 
-The final visual polish layer lives in `src/styles/visual-polish.css`. It keeps
-the map dominant, places the results rail beside the map when the viewport is
-wide enough, preserves a readable two-column map flow on smaller desktops and
-stacks the context header and navigation explicitly on mobile. It contains no
-workflow or API logic.
+The Stitch-guided Atlas Workbench redesign lives in
+`src/styles/atlas-workbench.css`, with the shared icon navigation in
+`components/shell/WorkbenchNavigation.tsx`. The application uses one compact
+navigation rail, one context bar and task-specific work surfaces. The primary
+map keeps the theme rail, map and insight rail in one row on normal desktop
+and gives additional ultrawide space to the map instead of stretching text
+panels. Mobile keeps all workspaces in a horizontally scrollable rail and
+bounds the theme list so the map remains reachable early in the flow.
+
+The visual contract, Stitch project and screen references are documented in
+`docs/UI_DESIGN_SYSTEM.md`. The redesign changes presentation and information
+hierarchy only; API, persistence and GIS behavior remain owned by the existing
+hooks and services.
 
 ## Current component boundaries