chore: trigger Vercel redeploy after force push

Author: alex-fedotyev

packages/app/src/DBDashboardPage.tsx

@@ -1176,6 +1176,16 @@ function DBDashboardPage({ presetConfig }: { presetConfig?: Dashboard }) {
     () => dashboard?.containers ?? [],
     [dashboard?.containers],
   );
+
+  // Valid move targets: sections, groups, and child tabs (not parent tab sets)
+  const moveTargetContainers = useMemo(
+    () =>
+      allContainers.filter(
+        c => !(c.type === 'tab' && !c.parentId), // exclude parent tab sets
+      ),
+    [allContainers],
+  );
+
   const hasContainers = sections.length > 0;
   // Keep backward-compatible alias
   const hasSections = hasContainers;
@@ -1331,7 +1341,7 @@ function DBDashboardPage({ presetConfig }: { presetConfig?: Dashboard }) {
             });
           }
         }}
-        containers={sections}
+        containers={moveTargetContainers}
         onMoveToSection={containerId =>
           handleMoveTileToSection(chart.id, containerId)
         }
@@ -1352,7 +1362,7 @@ function DBDashboardPage({ presetConfig }: { presetConfig?: Dashboard }) {
       whereLanguage,
       onTimeRangeSelect,
       filterQueries,
-      sections,
+      moveTargetContainers,
       handleMoveTileToSection,
       selectedTileIds,
       handleTileSelect,
@@ -2030,7 +2040,7 @@ function DBDashboardPage({ presetConfig }: { presetConfig?: Dashboard }) {
             }
           >
             <DashboardDndProvider
-              containers={sections}
+              containers={moveTargetContainers}
               onMoveTileToSection={handleMoveTileToSection}
               onReorderSections={handleReorderSections}
             >