export declare class WebServer {
    private server;
    private wss;
    private indexHtmlContent;
    private htmlContent;
    private mobileHtmlContent;
    private productveHtmlContent;
    private assistantHtmlContent;
    start(port: number): Promise<void>;
    stop(): Promise<void>;
    /** Broadcast a refresh message to all connected clients. */
    broadcast(panel: 'today' | 'calendar'): void;
    /**
     * Push a proactive message into the chat window of all connected clients.
     * Used by background processes (cron jobs, etc.) to surface
     * information without the user asking.
     */
    broadcastChat(message: string, category?: string, data?: unknown): void;
    private handleHttp;
    private handleWs;
    private handleChat;
    private getTodayTasks;
    private getEvents;
    private getStatus;
    private markTaskDone;
    private handleSetup;
    private readBody;
}
export declare function setWebServerInstance(server: WebServer): void;
export declare function getWebServer(): WebServer | null;
/**
 * Push a proactive message to all connected chat clients.
 * Safe to call even when no web server is running (no-ops silently).
 */
export declare function pushToChat(message: string, category?: string, data?: unknown): void;
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