fix(notifications): sync mute state in chat store immediately

docs/core-checklist-status.md

@@ -34,7 +34,7 @@ Legend:
 25. Admin Rights - `PARTIAL` (delete/pin/edit info + explicit ban API for groups/channels; integration tests cover channel member read-only, channel admin full-delete, channel message delete-for-all permissions, group profile edit permissions, and owner-only role management rules; remaining UX moderation tools limited)
 26. Channels - `PARTIAL` (create/post/edit/delete/subscribe/unsubscribe; UX edge-cases still polishing)
 27. Channel Types - `DONE` (public/private)
-28. Notifications - `PARTIAL` (browser notifications + mute/settings; chat mute is now propagated in chat list payload and honored by web realtime notifications with mention override; no mobile push infra)
+28. Notifications - `PARTIAL` (browser notifications + mute/settings; chat mute is propagated in chat list payload, honored by web realtime notifications with mention override, and mute toggle now syncs instantly in chat store; no mobile push infra)
 29. Archive - `DONE`
 30. Blacklist - `DONE`
 31. Privacy - `PARTIAL` (avatar/last-seen/group-invites + PM policy `everyone|contacts|nobody`; group-invite `nobody` is available in API and web settings; integration tests cover PM policy matrix (`everyone/contacts/nobody`), group-invite policy matrix (`everyone/contacts/nobody`), and private chat counterpart visibility for `nobody/contacts`, remaining UX/matrix hardening)

web/src/components/ChatInfoPanel.tsx

@@ -34,6 +34,7 @@ interface Props {
 export function ChatInfoPanel({ chatId, open, onClose }: Props) {
   const me = useAuthStore((s) => s.me);
   const loadChats = useChatStore((s) => s.loadChats);
+  const updateChatMuted = useChatStore((s) => s.updateChatMuted);
   const setActiveChatId = useChatStore((s) => s.setActiveChatId);
   const setFocusedMessage = useChatStore((s) => s.setFocusedMessage);
   const showToast = useUiStore((s) => s.showToast);
@@ -306,6 +307,7 @@ export function ChatInfoPanel({ chatId, open, onClose }: Props) {
                     try {
                       const updated = await updateChatNotificationSettings(chatId, !muted);
                       setMuted(updated.muted);
+                      updateChatMuted(chatId, updated.muted);
                     } catch {
                       setError("Failed to update notifications");
                     } finally {

web/src/store/chatStore.ts

@@ -99,6 +99,7 @@ interface ChatState {
   setReplyToMessage: (chatId: number, message: Message | null) => void;
   setEditingMessage: (chatId: number, message: Message | null) => void;
   updateChatPinnedMessage: (chatId: number, pinnedMessageId: number | null) => void;
+  updateChatMuted: (chatId: number, muted: boolean) => void;
   applyPresenceEvent: (chatId: number, userId: number, isOnline: boolean, lastSeenAt?: string) => void;
   removeChat: (chatId: number) => void;
   setDraft: (chatId: number, text: string) => void;
@@ -416,6 +417,10 @@ export const useChatStore = create<ChatState>((set, get) => ({
     set((state) => ({
       chats: state.chats.map((chat) => (chat.id === chatId ? { ...chat, pinned_message_id: pinnedMessageId } : chat))
     })),
+  updateChatMuted: (chatId, muted) =>
+    set((state) => ({
+      chats: state.chats.map((chat) => (chat.id === chatId ? { ...chat, muted } : chat))
+    })),
   applyPresenceEvent: (chatId, userId, isOnline, lastSeenAt) =>
     set((state) => ({
       chats: state.chats.map((chat) => {