fix(ui): toast cards render on stock themes; gate TDS glow (native-cinny audit 4/N)

LotusToastContainer was styled entirely with --lt-* CSS vars but rendered
unconditionally (not gated on lotusTerminal). Those vars only exist inside the
Lotus Terminal theme's scoped block with no global fallback, so in-app toast
notifications rendered with undefined background/border/colors on every stock
Cinny theme. Now the card uses folds tokens (color.Surface.*/Primary.*,
config.radii/space/borderWidth, color.Other.Shadow) by default, keeping the TDS
--lt-* glow/accents only when lotusTerminal is active. The raw <button> dismiss
control is now a folds IconButton.

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

src/app/features/toast/LotusToastContainer.tsx

@@ -1,6 +1,9 @@
 import React, { useEffect, useRef, CSSProperties } from 'react';
 import { useAtomValue, useSetAtom } from 'jotai';
+import { color, config, Icon, IconButton, Icons } from 'folds';
 import { toastQueueAtom, dismissToastAtom, ToastNotif } from '../../state/toast';
+import { useSetting } from '../../state/hooks/settings';
+import { settingsAtom } from '../../state/settings';
 
 // Inject the keyframe animation once
 const STYLE_ID = 'lotus-toast-keyframes';
@@ -29,6 +32,10 @@ type ToastCardProps = {
 
 function ToastCard({ toast }: ToastCardProps) {
   const dismiss = useSetAtom(dismissToastAtom);
+  // Lotus Terminal (TDS) gets its bespoke glow/accents; every other theme uses
+  // folds tokens so toasts render correctly on stock Cinny themes (the --lt-*
+  // vars only exist while Terminal mode is active).
+  const [lotusTerminal] = useSetting(settingsAtom, 'lotusTerminal');
   const timerRef = useRef<ReturnType<typeof setTimeout> | null>(null);
 
   useEffect(() => {
@@ -56,17 +63,29 @@ function ToastCard({ toast }: ToastCardProps) {
     dismiss(toast.id);
   };
 
+  const accent = toast.sticky ? color.Primary.Main : color.Surface.OnContainer;
+
   const cardStyle: CSSProperties = {
     position: 'relative',
-    background: 'var(--lt-bg-card)',
+    background: lotusTerminal ? 'var(--lt-bg-card)' : color.Surface.Container,
-    border: toast.sticky
+    border: `${config.borderWidth.B300} solid ${
-      ? '1px solid var(--lt-accent-cyan-border)'
+      lotusTerminal
-      : '1px solid var(--lt-border-color)',
+        ? toast.sticky
-    borderRadius: '12px',
+          ? 'var(--lt-accent-cyan-border)'
-    padding: '12px 14px',
+          : 'var(--lt-border-color)'
+        : toast.sticky
+          ? color.Primary.Main
+          : color.Surface.ContainerLine
+    }`,
+    borderRadius: config.radii.R400,
+    padding: `${config.space.S300} ${config.space.S400}`,
     minWidth: '280px',
     maxWidth: '340px',
-    boxShadow: toast.sticky ? 'var(--lt-box-glow-cyan)' : 'var(--lt-box-glow-orange)',
+    boxShadow: lotusTerminal
+      ? toast.sticky
+        ? 'var(--lt-box-glow-cyan)'
+        : 'var(--lt-box-glow-orange)'
+      : `0 8px 24px ${color.Other.Shadow}`,
     cursor: 'pointer',
     animation: 'lotusToastIn 0.2s ease-out both',
     userSelect: 'none',
@@ -75,8 +94,8 @@ function ToastCard({ toast }: ToastCardProps) {
   const rowStyle: CSSProperties = {
     display: 'flex',
     alignItems: 'center',
-    gap: '8px',
+    gap: config.space.S200,
-    marginRight: '20px',
+    marginRight: config.space.S500,
   };
 
   const avatarStyle: CSSProperties = {
@@ -91,19 +110,25 @@ function ToastCard({ toast }: ToastCardProps) {
     width: '24px',
     height: '24px',
     borderRadius: '50%',
-    background: 'var(--lt-accent-orange-dim)',
+    background: lotusTerminal ? 'var(--lt-accent-orange-dim)' : color.Primary.Container,
-    border: '1px solid var(--lt-accent-orange-border)',
+    border: `${config.borderWidth.B300} solid ${
+      lotusTerminal ? 'var(--lt-accent-orange-border)' : color.Primary.ContainerLine
+    }`,
     display: 'flex',
     alignItems: 'center',
     justifyContent: 'center',
     fontSize: '10px',
     fontWeight: 700,
-    color: 'var(--lt-accent-orange)',
+    color: lotusTerminal ? 'var(--lt-accent-orange)' : color.Primary.OnContainer,
     flexShrink: 0,
   };
 
   const nameStyle: CSSProperties = {
-    color: toast.sticky ? 'var(--lt-accent-cyan)' : 'var(--lt-accent-orange)',
+    color: lotusTerminal
+      ? toast.sticky
+        ? 'var(--lt-accent-cyan)'
+        : 'var(--lt-accent-orange)'
+      : accent,
     fontWeight: 600,
     fontSize: '0.85rem',
     overflow: 'hidden',
@@ -111,22 +136,8 @@ function ToastCard({ toast }: ToastCardProps) {
     whiteSpace: 'nowrap',
   };
 
-  const dismissBtnStyle: CSSProperties = {
-    position: 'absolute',
-    top: '8px',
-    right: '10px',
-    background: 'none',
-    border: 'none',
-    color: 'var(--lt-text-secondary)',
-    cursor: 'pointer',
-    fontSize: '14px',
-    lineHeight: 1,
-    padding: '2px 4px',
-    borderRadius: '4px',
-  };
-
   const bodyStyle: CSSProperties = {
-    color: 'var(--lt-text-primary)',
+    color: lotusTerminal ? 'var(--lt-text-primary)' : color.Surface.OnContainer,
     fontSize: '0.82rem',
     margin: '4px 0 2px',
     overflow: 'hidden',
@@ -136,7 +147,7 @@ function ToastCard({ toast }: ToastCardProps) {
   };
 
   const roomNameStyle: CSSProperties = {
-    color: 'var(--lt-text-secondary)',
+    color: lotusTerminal ? 'var(--lt-text-secondary)' : color.SurfaceVariant.OnContainer,
     fontSize: '0.75rem',
     overflow: 'hidden',
     textOverflow: 'ellipsis',
@@ -161,14 +172,19 @@ function ToastCard({ toast }: ToastCardProps) {
       }}
       aria-label={`Notification from ${toast.displayName} in ${toast.roomName}`}
     >
-      <button
+      <span style={{ position: 'absolute', top: config.space.S100, right: config.space.S100 }}>
+        <IconButton
           type="button"
-        style={dismissBtnStyle}
+          size="300"
+          radii="300"
+          variant="Surface"
+          fill="None"
           onClick={handleDismiss}
           aria-label="Dismiss notification"
         >
-        ×
+          <Icon size="100" src={Icons.Cross} />
-      </button>
+        </IconButton>
+      </span>
       <div style={rowStyle}>
         {toast.avatarUrl ? (
           <img src={toast.avatarUrl} alt="" style={avatarStyle} aria-hidden="true" />
@@ -201,7 +217,7 @@ export function LotusToastContainer() {
     zIndex: 10001,
     display: 'flex',
     flexDirection: 'column',
-    gap: '8px',
+    gap: config.space.S200,
     pointerEvents: 'auto',
   };