Misc. bug bash

frontend/src/App.tsx

@@ -274,6 +274,7 @@ export function App() {
     unreadLastReadAts,
     recordMessageEvent,
     renameConversationState,
+    removeConversationState,
     markAllRead,
     refreshUnreads,
   } = useUnreadCounts(channels, contacts, activeConversation);
@@ -349,6 +350,7 @@ export function App() {
     observeMessage,
     recordMessageEvent,
     renameConversationState,
+    removeConversationState,
     checkMention,
     pendingDeleteFallbackRef,
     setActiveConversation,

frontend/src/components/SearchView.tsx

@@ -174,7 +174,11 @@ export function SearchView({
     api
       .getMessages({ q: debouncedQuery, limit: SEARCH_PAGE_SIZE, offset }, controller.signal)
       .then((data) => {
-        setResults((prev) => [...prev, ...(data as SearchResult[])]);
+        setResults((prev) => {
+          const existingIds = new Set(prev.map((r) => r.id));
+          const unique = (data as SearchResult[]).filter((r) => !existingIds.has(r.id));
+          return [...prev, ...unique];
+        });
         setHasMore(data.length >= SEARCH_PAGE_SIZE);
         setOffset((prev) => prev + data.length);
       })

frontend/src/hooks/useRealtimeAppState.ts

@@ -43,6 +43,7 @@ interface UseRealtimeAppStateArgs {
     hasMention?: boolean;
   }) => void;
   renameConversationState: (oldStateKey: string, newStateKey: string) => void;
+  removeConversationState: (stateKey: string) => void;
   checkMention: (text: string) => boolean;
   pendingDeleteFallbackRef: MutableRefObject<boolean>;
   setActiveConversation: (conv: Conversation | null) => void;
@@ -96,6 +97,7 @@ export function useRealtimeAppState({
   observeMessage,
   recordMessageEvent,
   renameConversationState,
+  removeConversationState,
   checkMention,
   pendingDeleteFallbackRef,
   setActiveConversation,
@@ -232,6 +234,7 @@ export function useRealtimeAppState({
       onContactDeleted: (publicKey: string) => {
         setContacts((prev) => prev.filter((c) => c.public_key !== publicKey));
         removeConversationMessages(publicKey);
+        removeConversationState(getStateKey('contact', publicKey));
         const active = activeConversationRef.current;
         if (active?.type === 'contact' && active.id === publicKey) {
           pendingDeleteFallbackRef.current = true;
@@ -241,6 +244,7 @@ export function useRealtimeAppState({
       onChannelDeleted: (key: string) => {
         setChannels((prev) => prev.filter((c) => c.key !== key));
         removeConversationMessages(key);
+        removeConversationState(getStateKey('channel', key));
         const active = activeConversationRef.current;
         if (active?.type === 'channel' && active.id === key) {
           pendingDeleteFallbackRef.current = true;
@@ -267,6 +271,7 @@ export function useRealtimeAppState({
       checkMention,
       fetchAllContacts,
       fetchConfig,
+      removeConversationState,
       renameConversationState,
       renameConversationMessages,
       maxRawPackets,

frontend/src/hooks/useUnreadCounts.ts

@@ -23,6 +23,7 @@ interface UseUnreadCountsResult {
     hasMention?: boolean;
   }) => void;
   renameConversationState: (oldStateKey: string, newStateKey: string) => void;
+  removeConversationState: (stateKey: string) => void;
   markAllRead: () => void;
   refreshUnreads: () => Promise<void>;
 }
@@ -235,6 +236,27 @@ export function useUnreadCounts(
     setLastMessageTimes(renameConversationTimeKey(oldStateKey, newStateKey));
   }, []);
 
+  const removeConversationState = useCallback((stateKey: string) => {
+    setUnreadCounts((prev) => {
+      if (!(stateKey in prev)) return prev;
+      const next = { ...prev };
+      delete next[stateKey];
+      return next;
+    });
+    setMentions((prev) => {
+      if (!(stateKey in prev)) return prev;
+      const next = { ...prev };
+      delete next[stateKey];
+      return next;
+    });
+    setUnreadLastReadAts((prev) => {
+      if (!(stateKey in prev)) return prev;
+      const next = { ...prev };
+      delete next[stateKey];
+      return next;
+    });
+  }, []);
+
   // Mark all conversations as read
   // Calls single bulk API endpoint to persist read state
   const markAllRead = useCallback(() => {
@@ -256,6 +278,7 @@ export function useUnreadCounts(
     unreadLastReadAts,
     recordMessageEvent,
     renameConversationState,
+    removeConversationState,
     markAllRead,
     refreshUnreads: fetchUnreads,
   };

frontend/src/test/useRealtimeAppState.test.ts

@@ -69,6 +69,7 @@ function createRealtimeArgs(overrides: Partial<Parameters<typeof useRealtimeAppS
       observeMessage: vi.fn(() => ({ added: false, activeConversation: false })),
       recordMessageEvent: vi.fn(),
       renameConversationState: vi.fn(),
+      removeConversationState: vi.fn(),
       checkMention: vi.fn(() => false),
       pendingDeleteFallbackRef: { current: false },
       setActiveConversation: vi.fn(),