Interface ConcierguseChatStore

interface ConcierguseChatStore {
    messages: EnhancedMessage[];
    addMessage: (message: EnhancedMessage) => void;
    updateMessage: (id: string, updates: Partial<EnhancedMessage>) => void;
    removeMessage: (id: string) => void;
    clearMessages: () => void;
    getMessages: () => EnhancedMessage[];
    subscribe: (callback: () => void) => () => void;
    getSnapshot: () => EnhancedMessage[];
    getServerSnapshot: () => EnhancedMessage[];
}