fix: enforce semantic contrast across admin

src/components/admin/emulator-settings-form.tsx

@@ -292,7 +292,7 @@ export function EmulatorSettingsForm({
               <div
                 key={setting.key}
                 className={`flex items-center gap-3 px-3 py-1.5 border-l-4 ${borderColor} ${
-                  isChanged ? 'bg-yellow-50/60 dark:bg-yellow-950/20' : ''
+                  isChanged ? 'bg-[var(--color-warning-subtle)] dark:bg-[var(--color-warning-subtle)]' : ''
                 }`}
               >
                 <code
@@ -305,7 +305,7 @@ export function EmulatorSettingsForm({
                   value={display}
                   onChange={(e) => updateValue(setting.key, e.target.value)}
                   className={`flex-1 h-8 text-xs font-mono ${
-                    isChanged ? 'border-yellow-500/60' : ''
+                    isChanged ? 'border-[var(--color-warning-border)]' : ''
                   }`}
                 />
                 {isChanged && (