fix: stop os search modal and sse reconnect loops

app/api/events/route.ts

@@ -5,11 +5,21 @@
 
 import { eventBroadcaster } from '@/services/events';
 
-export async function GET() {
+export async function GET(request: Request) {
   const encoder = new TextEncoder();
+  let activeController: ReadableStreamDefaultController<Uint8Array> | null = null;
+
+  const cleanupConnection = () => {
+    if (!activeController) return;
+    console.log('🔌 SSE connection cleanup');
+    eventBroadcaster.removeConnection(activeController);
+    activeController = null;
+  };
 
   const stream = new ReadableStream({
     start(controller) {
+      activeController = controller;
+
       // Add this connection to the broadcaster
       console.log('🔌 New SSE connection established');
       eventBroadcaster.addConnection(controller);
@@ -22,25 +32,15 @@ export async function GET() {
       })}\n\n`;
       
       controller.enqueue(encoder.encode(initialMessage));
-
-      // Store controller reference for cleanup
-      // eslint-disable-next-line @typescript-eslint/no-explicit-any
-      (controller as any)._cleanup = () => {
-        console.log('🔌 SSE connection cleanup');
-        eventBroadcaster.removeConnection(controller);
-      };
     },
     
-    cancel(controller) {
+    cancel() {
-      // Clean up when client disconnects
+      cleanupConnection();
-      // eslint-disable-next-line @typescript-eslint/no-explicit-any
-      if ((controller as any)._cleanup) {
-        // eslint-disable-next-line @typescript-eslint/no-explicit-any
-        (controller as any)._cleanup();
-      }
     }
   });
 
+  request.signal.addEventListener('abort', cleanupConnection, { once: true });
+
   return new Response(stream, {
     headers: {
       'Content-Type': 'text/event-stream',

src/components/layout/ThreePanelLayout.tsx

@@ -45,6 +45,8 @@ const DEFAULT_SLOT_A: SlotState = {
   activeTabId: 'views',
 };
 
+const EMPTY_SEARCH_FILTERS: Array<{ type: 'context' | 'title' | 'tag'; value: string }> = [];
+
 function createSingletonState(type: Exclude<PaneType, 'node'>): SlotState {
   return {
     tabs: [{ id: createTabId(type), type }],
@@ -157,6 +159,8 @@ export default function ThreePanelLayout() {
   } | null>(null);
   const [pendingNodes, setPendingNodes] = useState<PendingNode[]>([]);
   const [dragOverSlot, setDragOverSlot] = useState<SlotId | null>(null);
+  const openNodeIdsRef = useRef<number[]>([]);
+  const handleNodeDeletedRef = useRef<(nodeId: number) => void>(() => {});
 
   const handleCloseSettings = useCallback(() => {
     setShowSettings(false);
@@ -268,6 +272,10 @@ export default function ThreePanelLayout() {
     return [...ids];
   }, [slotStates]);
 
+  useEffect(() => {
+    openNodeIdsRef.current = allOpenNodeIds;
+  }, [allOpenNodeIds]);
+
   const activeNodeId = useMemo(() => {
     const activeSlotState = slotStates[activePane];
     const activeTab = activeSlotState ? getActiveTab(activeSlotState) : undefined;
@@ -357,12 +365,12 @@ export default function ThreePanelLayout() {
               break;
             case 'NODE_UPDATED':
               setNodesPanelRefresh((prev) => prev + 1);
-              if (allOpenNodeIds.includes(Number(data.data.nodeId))) {
+              if (openNodeIdsRef.current.includes(Number(data.data.nodeId))) {
                 setFocusPanelRefresh((prev) => prev + 1);
               }
               break;
             case 'NODE_DELETED':
-              handleNodeDeleted(Number(data.data.nodeId));
+              handleNodeDeletedRef.current(Number(data.data.nodeId));
               setNodesPanelRefresh((prev) => prev + 1);
               break;
             case 'EDGE_CREATED':
@@ -401,7 +409,7 @@ export default function ThreePanelLayout() {
     return () => {
       eventSource?.close();
     };
-  }, [allOpenNodeIds]);
+  }, []);
 
   useEffect(() => {
     if (pendingNodes.length === 0) return;
@@ -535,6 +543,10 @@ export default function ThreePanelLayout() {
     (['A', 'B', 'C'] as SlotId[]).forEach((slot) => closeTabInSlot(slot, tabId));
   }, [closeTabInSlot]);
 
+  useEffect(() => {
+    handleNodeDeletedRef.current = handleNodeDeleted;
+  }, [handleNodeDeleted]);
+
   const handleReorderTabs = useCallback((slot: SlotId, fromIndex: number, toIndex: number) => {
     const state = getSlotState(slot);
     if (!state || fromIndex === toIndex) return;
@@ -981,7 +993,7 @@ export default function ThreePanelLayout() {
           openNodeFromSlot(nodeId);
           setShowSearchModal(false);
         }}
-        existingFilters={[]}
+        existingFilters={EMPTY_SEARCH_FILTERS}
       />
 
       <SettingsModal

src/components/nodes/SearchModal.tsx

@@ -95,7 +95,8 @@ export default function SearchModal({ isOpen, onClose, onNodeSelect, existingFil
   // Generate suggestions based on search query
   useEffect(() => {
     if (!searchQuery.trim()) {
-      setSuggestions([]);
+      setSuggestions((prev) => (prev.length === 0 ? prev : []));
+      setSelectedIndex(0);
       return;
     }
 
@@ -122,7 +123,7 @@ export default function SearchModal({ isOpen, onClose, onNodeSelect, existingFil
 
     const timeoutId = setTimeout(fetchSuggestions, 200);
     return () => clearTimeout(timeoutId);
-  }, [searchQuery, existingFilters]);
+  }, [searchQuery]);
 
   // Handle keyboard navigation
   const handleKeyDown = (e: React.KeyboardEvent) => {