Re-enable the video toolbar HD entry

The P40 upscale flow (popover, HD node creation, task submission) is
fully wired; the toolbar entry had been left disabled and mislabeled
as not connected.

components/canvas/LiblibVideoCanvasReplica.tsx

@@ -12588,8 +12588,7 @@ function OfficialVideoMediaToolbar({
           active={menu === "hd"}
           dropdown
           icon={<Sparkles className="h-[18px] w-[18px]" strokeWidth={2.1} />}
-          disabled
-          label="高清（未接通）"
+          label="高清"
           onClick={() => setMenu((current) => current === "hd" ? null : "hd")}
         />
         {menu === "hd" ? (