feat(design): glass surfaces by role, the static Badge, LinkButton, user pickers on the Combobox (E28 S3d1)

frontend/src/components/ExcludedChannelList.tsx

@@ -3,6 +3,7 @@ import ChannelLink from "./ChannelLink";
 import NavGrid from "./ui/NavGrid";
 import { navItemAttrs } from "../lib/listNav";
 import { Button } from "./ui/Button";
+import { SURFACE } from "./ui/surfaces";
 
 // The presentation shared by the channel manager's "excluded channel" tabs — Hidden and Blocked.
 // A responsive grid of proper channel cards (avatar + name + open-on-YouTube, via ChannelLink) each
@@ -48,7 +49,7 @@ export default function ExcludedChannelList({
           <div
             key={c.id}
             {...navItemAttrs(i)}
-            className="glass-card flex items-center gap-2 rounded-xl px-3 py-2"
+            className={`${SURFACE.card} flex items-center gap-2 px-3 py-2`}
           >
             <div className="min-w-0 flex-1">
               <ChannelLink