fix(ui): folds tokens for settings/profile/glass invented vars (native-cinny audit 2/N)

- DenoiseTester: --bg-card/--border-color/--accent-green/--accent-orange -> color.Surface.*/Success/Primary
- ProfileDecoration: --accent-cyan/--bg-surface-variant -> color.Primary.Main/SurfaceVariant.Container
- Profile: --tc-critical/warning-normal -> color.Critical/Warning.Main
- UserRoomProfile: --tc-positive/warning-normal/--tc-surface-low-contrast/--bg-surface-variant -> color tokens
- Sidebar glass: hardcoded rgba bg/border -> color-mix on color.Surface.Container + SurfaceVariant.ContainerLine
  (also fixes the glass looking wrong on light themes — was always near-black)

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

src/app/components/sidebar/Sidebar.css.ts

@@ -17,10 +17,10 @@ export const Sidebar = style([
 ]);
 
 export const SidebarGlass = style({
-  backgroundColor: 'rgba(3, 5, 8, 0.55)',
+  backgroundColor: `color-mix(in srgb, ${color.Surface.Container} 55%, transparent)`,
   backdropFilter: 'blur(12px)',
   WebkitBackdropFilter: 'blur(12px)',
-  borderRight: '1px solid rgba(255,255,255,0.06)',
+  borderRight: `${config.borderWidth.B300} solid ${color.SurfaceVariant.ContainerLine}`,
 });
 
 export const SidebarStack = style([

src/app/components/user-profile/UserRoomProfile.tsx

@@ -91,10 +91,10 @@ function UserDeviceRow({ userId, device }: UserDeviceRowProps) {
       {(status) => {
         const deviceColor =
           status === VerificationStatus.Verified
-            ? 'var(--tc-positive-normal, #5effc4)'
+            ? color.Success.Main
             : status === VerificationStatus.Unverified
-              ? 'var(--tc-warning-normal, #ffcc55)'
-              : 'var(--tc-surface-low-contrast)';
+              ? color.Warning.Main
+              : color.SurfaceVariant.OnContainer;
         return (
           <Box alignItems="Center" gap="200">
             <Icon size="100" src={Icons.ShieldUser} style={{ color: deviceColor, flexShrink: 0 }} />
@@ -106,7 +106,7 @@ function UserDeviceRow({ userId, device }: UserDeviceRowProps) {
                 <Text
                   size="T200"
                   truncate
-                  style={{ color: 'var(--tc-surface-low-contrast)', fontFamily: 'monospace' }}
+                  style={{ color: color.SurfaceVariant.OnContainer, fontFamily: 'monospace' }}
                 >
                   {device.deviceId}
                 </Text>
@@ -160,7 +160,7 @@ function UserDeviceSessions({ userId }: UserDeviceSessionsProps) {
       direction="Column"
       gap="100"
       style={{
-        background: 'var(--bg-surface-variant)',
+        background: color.SurfaceVariant.Container,
         borderRadius: config.radii.R300,
         padding: config.space.S300,
       }}
@@ -171,7 +171,7 @@ function UserDeviceSessions({ userId }: UserDeviceSessionsProps) {
           <Text size="T300">
             <b>Sessions</b>
           </Text>
-          <Text size="T200" style={{ color: 'var(--tc-surface-low-contrast)' }}>
+          <Text size="T200" style={{ color: color.SurfaceVariant.OnContainer }}>
             {devices.length}
           </Text>
         </Box>