/**
 * Topic registry — operator-managed name → threadId mapping.
 * Backed by the shared SQLite memory database (topic_registry table).
 */
/** Look up a thread ID from the operator-managed topic registry. */
export declare function lookupTopicRegistry(chatId: string, name: string): number | undefined;
/** Register a topic name → threadId mapping in the registry. */
export declare function registerTopic(chatId: string, name: string, threadId: number): void;
export declare function registerTopicRegistry(chatId: string, name: string, threadId: number): void;
/** Remove a topic from the registry. */
export declare function unregisterTopic(chatId: string, name: string): void;
/** Get all registered topics for a chat (or all chats if chatId is omitted). */
export declare function getAllRegisteredTopics(chatId?: string): Record<string, Record<string, number>>;
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