fix(ui): preserve desktop shell layout

apps/ui/src/styles/base.css

@@ -119,7 +119,8 @@ html, body, #root {
 }
 body {
   min-height: 100vh;
-  overflow: hidden;
+  overflow-x: auto;
+  overflow-y: hidden;
 }
 button, input, textarea, select { font: inherit; }
 button {
@@ -179,4 +180,3 @@ label {
 }
 p, h1, h2, h3, strong, span { margin: 0; }
 strong { font-weight: 600; }
-

apps/ui/src/styles/shell.css

@@ -3,6 +3,7 @@
   isolation: isolate;
   height: 100vh;
   min-height: 100vh;
+  min-width: 960px;
   display: grid;
   grid-template-columns: clamp(232px, 19vw, 280px) minmax(0, 1fr);
   overflow: hidden;
@@ -1345,4 +1346,3 @@ button.secondary {
   }
 }
 
-

apps/ui/src/styles/theme-openclaw.css

@@ -17,6 +17,7 @@
   --revamp-border-strong: rgba(148, 163, 184, 0.38);
   --revamp-shadow: 0 14px 32px rgba(15, 23, 42, 0.06);
   --revamp-shadow-soft: 0 8px 18px rgba(15, 23, 42, 0.04);
+  min-width: 960px;
   grid-template-columns: clamp(260px, 20vw, 280px) minmax(0, 1fr);
   background: var(--revamp-canvas);
   color: var(--revamp-text);
@@ -53,11 +54,13 @@
 
 .shell.openclaw-theme > .sidebar {
   position: relative;
+  height: 100vh;
   overflow: hidden;
   background:
     radial-gradient(circle at 24px 84px, rgba(25, 182, 217, 0.2), transparent 36%),
     linear-gradient(180deg, #d8eaff 0%, #c8dfff 48%, #bed8f8 100%);
   border-right: 1px solid rgba(37, 99, 235, 0.34);
+  border-bottom: 0;
   box-shadow:
     inset -1px 0 0 rgba(255, 255, 255, 0.62),
     inset 0 1px 0 rgba(255, 255, 255, 0.54);
@@ -99,6 +102,7 @@
 }
 
 .shell.openclaw-theme .nav-list {
+  grid-template-columns: 1fr;
   gap: 10px;
 }
 
@@ -110,6 +114,7 @@
   border: 1px solid transparent;
   background: linear-gradient(135deg, rgba(242, 250, 255, 0.82), rgba(212, 236, 251, 0.74));
   color: #2e516c;
+  justify-content: flex-start;
   box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.78), 0 10px 22px rgba(63, 128, 173, 0.12);
   backdrop-filter: blur(10px);
   -webkit-backdrop-filter: blur(10px);
@@ -443,6 +448,7 @@
 
 .shell.openclaw-theme .main-shell {
   min-width: 0;
+  height: 100vh;
   background: var(--revamp-canvas);
 }
 
@@ -982,4 +988,3 @@
 }
 
 /* UI Component Styles */
-