fix(channel): inherit content-type filters instead of forcing Live/Upcoming

Opening a channel hardcoded includeLive:true (+ normal on / shorts off), so a
channel view silently showed live/upcoming even when the feed had them off. Seed
the content triad from the global feed once at mount; the channel toolbar can
still toggle them locally.

frontend/src/components/ChannelPage.tsx

@@ -6,6 +6,7 @@ import { ArrowLeft, Ban, Check, ExternalLink, Loader2, Plus, RefreshCw, SlidersH
 import Avatar from "./Avatar";
 import Feed from "./Feed";
 import { PageToolbar, PageToolbarSlot } from "./PageShell";
+import { useFeedFilters } from "./FeedFiltersProvider";
 import { useConfirm } from "./ConfirmProvider";
 import { notify } from "../lib/notifications";
 import { notifyYouTubeActionError } from "../lib/youtubeErrors";
@@ -76,6 +77,11 @@ export default function ChannelPage({
   const { closeChannel } = useNavigationActions();
   const qc = useQueryClient();
   const confirm = useConfirm();
+  // Seed the channel view's content-type prefs from the global feed (read once at mount). The
+  // channel page is its own filter scope, but WHICH content types the user wants to see (normal /
+  // shorts / live-upcoming) is a genuine preference, not part of "this channel's catalog" — so we
+  // inherit it instead of forcing Live/Upcoming on. The channel toolbar can still toggle these.
+  const globalFilters = useFeedFilters();
   const [tab, setTab] = useState<"videos" | "about">("videos");
   // The whole channel chrome (banner, identity, tabs, toolbar) is fixed: it portals into the shell's
   // fixed band so only the video grid scrolls. This node sits at the bottom of that chrome and is
@@ -182,9 +188,10 @@ export default function ChannelPage({
     sort: "newest",
     scope: "all",
     librarySource: "all",
-    includeNormal: true,
+    // Content-type prefs inherited from the global feed (seeded once) — no longer forced.
-    includeShorts: false,
+    includeNormal: globalFilters.includeNormal,
-    includeLive: true,
+    includeShorts: globalFilters.includeShorts,
+    includeLive: globalFilters.includeLive,
     show: "all",
     channelIds: [channelId],
   }));