Remove the experimental workspace toggle

Co-Authored-By: Paperclip <noreply@paperclip.ing>

ui/src/pages/InstanceSettings.tsx

@@ -12,7 +12,6 @@ import { Button } from "@/components/ui/button";
 import { Card, CardContent } from "@/components/ui/card";
 import { queryKeys } from "../lib/queryKeys";
 import { formatDateTime, relativeTime } from "../lib/utils";
-import { useExperimentalWorkspacesEnabled } from "../lib/experimentalSettings";
 
 function asRecord(value: unknown): Record<string, unknown> | null {
   if (typeof value !== "object" || value === null || Array.isArray(value)) return null;
@@ -31,7 +30,6 @@ export function InstanceSettings() {
   const { setBreadcrumbs } = useBreadcrumbs();
   const queryClient = useQueryClient();
   const [actionError, setActionError] = useState<string | null>(null);
-  const { enabled: workspacesEnabled, setEnabled: setWorkspacesEnabled } = useExperimentalWorkspacesEnabled();
 
   useEffect(() => {
     setBreadcrumbs([
@@ -112,34 +110,6 @@ export function InstanceSettings() {
 
   return (
     <div className="max-w-5xl space-y-6">
-      <div className="space-y-3 rounded-lg border border-border bg-card p-4">
-        <div className="space-y-1">
-          <div className="flex items-center gap-2">
-            <Settings className="h-4 w-4 text-muted-foreground" />
-            <h2 className="text-sm font-semibold">Experimental</h2>
-          </div>
-          <p className="text-sm text-muted-foreground">
-            UI-only feature flags for in-progress product surfaces.
-          </p>
-        </div>
-        <div className="flex items-center justify-between rounded-md border border-border px-3 py-2">
-          <div className="space-y-0.5">
-            <div className="text-sm font-medium">Workspaces</div>
-            <div className="text-xs text-muted-foreground">
-              Show workspace, execution workspace, and work product controls in project and issue UI.
-            </div>
-          </div>
-          <Button
-            type="button"
-            variant={workspacesEnabled ? "default" : "outline"}
-            size="sm"
-            onClick={() => setWorkspacesEnabled(!workspacesEnabled)}
-          >
-            {workspacesEnabled ? "Enabled" : "Disabled"}
-          </Button>
-        </div>
-      </div>
-
       <div className="space-y-2">
         <div className="flex items-center gap-2">
           <Settings className="h-5 w-5 text-muted-foreground" />