fix(cmdk): Filter empty resource nodes from group children in search mode

The matched-child filter in search mode only checked scores but not
isEmptyResourceNode, so an async group container with 0 results nested
inside a group (e.g. "Reverse DSN lookup" under "Navigate") would pass
the filter and appear as a clickable action when the group label matched
the query.

Apply the same isEmptyResourceNode guard to the per-child filter that
browse mode already uses, and add a regression test for the case.

Co-Authored-By: Claude <noreply@anthropic.com>

Author: JonasBa

static/app/components/commandPalette/ui/commandPalette.spec.tsx

@@ -701,6 +701,35 @@ describe('CommandPalette', () => {
       ).not.toBeInTheDocument();
     });
 
+    it('is omitted from search mode when nested inside a group whose label matches the query', async () => {
+      render(
+        <CommandPaletteProvider>
+          <CMDKAction display={{label: 'Navigate'}}>
+            <CMDKAction display={{label: 'Async Resource'}} resource={emptyResource}>
+              {data =>
+                data.map((_, i) => (
+                  <CMDKAction key={i} to="/x/" display={{label: 'Result'}} />
+                ))
+              }
+            </CMDKAction>
+          </CMDKAction>
+          <CMDKAction display={{label: 'Other'}} onAction={jest.fn()} />
+          <CommandPalette onAction={jest.fn()} />
+        </CommandPaletteProvider>
+      );
+
+      const input = await screen.findByRole('textbox', {name: 'Search commands'});
+      await userEvent.type(input, 'navigate');
+
+      // Wait for search to take effect — 'Other' should be filtered out since it doesn't match
+      await waitFor(() => {
+        expect(screen.queryByRole('option', {name: 'Other'})).not.toBeInTheDocument();
+      });
+      expect(
+        screen.queryByRole('option', {name: 'Async Resource'})
+      ).not.toBeInTheDocument();
+    });
+
     it('is omitted from search mode even when the label matches the query', async () => {
       render(
         <CommandPaletteProvider>

static/app/components/commandPalette/ui/commandPalette.tsx

@@ -518,7 +518,9 @@ function flattenActions(
 
   const flattened = collected.flatMap((item): CMDKFlatItem[] => {
     if (item.children.length > 0) {
-      const matched = item.children.filter(c => scores.get(c.key)?.score.matched);
+      const matched = item.children.filter(
+        c => scores.get(c.key)?.score.matched && !isEmptyResourceNode(c)
+      );
       if (!matched.length) return [];
       return [
         // Suffix the header key so a group used as both a section header and