fix: prevent duplicate card rendering during streaming

Streaming orphan UI cards section was rendering all cards with message_id=NONE
as orphans, even when they were already claimed by the message-level orphan
matching logic via card_id. Added card_id+tool_call_id check to prevent
double rendering.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

langgraph/src/main.tsx

@@ -1041,10 +1041,21 @@ function App() {
           {thread.isLoading &&
             deduplicateUiItems(
               (thread.values?.ui ?? []).filter((ui: UIMsgLocal) => {
-                const attachedToExisting = activeMessages.some(
+                // Check if attached by message_id
+                const attachedByMsgId = activeMessages.some(
                   (m) => m.id === ui.metadata?.message_id,
                 );
-                return !attachedToExisting;
+                if (attachedByMsgId) return false;
+                // Check if attached by card_id matching any tool_call_id (orphan logic)
+                const cardId = ui.props?.card_id as string | undefined;
+                if (cardId) {
+                  const claimedByToolCall = activeMessages.some((m) => {
+                    const tcs: { id?: string }[] = (m as any).tool_calls ?? [];
+                    return tcs.some((tc) => tc.id && cardId.includes(tc.id));
+                  });
+                  if (claimedByToolCall) return false;
+                }
+                return true;
               })
             )
               .map((ui: UIMsgLocal) => (