fix: gate creation until workspace summaries load

frontend/src/shell/SteerInput.tsx

@@ -156,7 +156,9 @@ export function SteerInput({
  */
 export function ComposerFooter() {
   const { data: settings } = useQuery({ queryKey: ["settings"], queryFn: getSettings });
-  const { data: workspaces = [] } = useQuery({ queryKey: ["workspaces"], queryFn: listWorkspaces });
+  const { data: workspaces = [], isLoading: workspacesLoading } = useQuery({
+    queryKey: ["workspaces"], queryFn: listWorkspaces,
+  });
   const { data: modelsData } = useQuery({ queryKey: ["models"], queryFn: listModels });
   const models = modelsData?.models ?? [];
   const tokenUsage = useSessionStore((state) => state.tokenUsage);
@@ -190,9 +192,16 @@ export function ComposerFooter() {
     : models;
 
   useEffect(() => {
-    if (selectedWorkspace?.revision) workspacePolicyGate.select(workspace);
-    else workspacePolicyGate.clear();
-  }, [selectedWorkspace, workspace]);
+    if (!workspace) {
+      workspacePolicyGate.clear();
+    } else if (workspacesLoading) {
+      workspacePolicyGate.beginSummary(workspace);
+    } else if (selectedWorkspace?.revision) {
+      workspacePolicyGate.select(workspace);
+    } else {
+      workspacePolicyGate.allowLegacy(workspace);
+    }
+  }, [selectedWorkspace, workspace, workspacesLoading]);
 
   useEffect(() => {
     if (!allowedModels?.length) return;
@@ -222,11 +231,11 @@ export function ComposerFooter() {
   }, [selectedWorkspace, workspace, workspacePolicyError, workspaceRecord]);
 
   function update(patch: WorkspacePreference) {
-    if (
-      patch.workspaceId
-      && patch.workspaceId !== workspace
-      && workspaces.some((candidate) => candidate.id === patch.workspaceId && candidate.revision)
-    ) workspacePolicyGate.select(patch.workspaceId);
+    if (patch.workspaceId && patch.workspaceId !== workspace) {
+      const selected = workspaces.find((candidate) => candidate.id === patch.workspaceId);
+      if (selected?.revision) workspacePolicyGate.select(patch.workspaceId);
+      else workspacePolicyGate.allowLegacy(patch.workspaceId);
+    }
     const next = workspacePreferences.save({ ...preferences, ...patch });
     setPreferences(next);
   }