/**
 * Notification Center — RFC-0022
 *
 * Main orchestration class for sending notifications across multiple channels.
 *
 * Security Rules (RFC-0022):
 * - Do not send raw cookies, passwords, provider tokens
 * - Redact sensitive data before sending
 * - Notification failure does not crash runtime
 */
import type { NotificationEvent, NotificationConfig, NotificationChannelConfig, NotificationResult, NotificationContext } from "./types.js";
export declare class NotificationCenter {
    private adapters;
    private redactPatterns;
    constructor(config?: NotificationConfig);
    /**
     * Register a new adapter
     */
    registerAdapter(config: NotificationChannelConfig): boolean;
    /**
     * Initialize all registered adapters
     */
    initialize(): Promise<void>;
    /**
     * Send a notification to all configured channels
     */
    notify(event: NotificationEvent, context: NotificationContext): Promise<NotificationResult[]>;
    /**
     * Send notification to a specific channel
     */
    notifyChannel(channelId: string, event: NotificationEvent, context: NotificationContext): Promise<NotificationResult>;
    /**
     * Check if any notifications are configured
     */
    hasChannels(): boolean;
    /**
     * List all configured channels
     */
    listChannels(): string[];
    private createAdapter;
    private buildPayload;
    private getEventContent;
    private redact;
    private getDefaultRedactPatterns;
}
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