Interface ChatStorageService

interface ChatStorageService {
    addMessage(
        sessionId: string,
        message: Omit<ChatMessage, "id" | "timestamp">,
    ): Promise<ChatMessage>;
    createSession(title?: string): Promise<ChatSession>;
    deleteMessage(sessionId: string, messageId: string): Promise<void>;
    deleteSession(id: string): Promise<void>;
    exportSession(id: string): Promise<string>;
    getAllSessions(): Promise<ChatListItem[]>;
    getSession(id: string): Promise<ChatSession>;
    importSession(data: string): Promise<ChatSession>;
    searchSessions(query: string): Promise<ChatListItem[]>;
    updateMessage(
        sessionId: string,
        messageId: string,
        updates: Partial<ChatMessage>,
    ): Promise<void>;
    updateSession(id: string, updates: Partial<ChatSession>): Promise<void>;
}