/**
 * Preview API Server — Interactive preview with REST API and WebSocket hot-reload.
 *
 * Browsers connect via WebSocket for live reload notifications.
 * The server pushes `{ type: "reload", reason }` when specs or code change.
 */
import type { MemoireEngine } from "../engine/core.js";
export interface PipelineAccessor {
    getStats(): {
        pullCount: number;
        specCount: number;
        generateCount: number;
        errorCount: number;
        queueDepth: number;
    };
    getRecentEvents(): {
        type: string;
        timestamp: string;
        detail: string;
    }[];
}
export declare class PreviewApiServer {
    private engine;
    private staticDir;
    private port;
    private startPort;
    private pipeline;
    private server;
    private wss;
    private liveClients;
    private onEngineEvent;
    private onFigmaConnectionState;
    private onFigmaSelection;
    private onFigmaJobStatus;
    private onFigmaAgentStatus;
    private onFigmaSyncResult;
    private onFigmaHealResult;
    private onFigmaPluginConnected;
    private onFigmaPluginDisconnected;
    private widgetState;
    private sseClients;
    constructor(engine: MemoireEngine, staticDir: string, port?: number);
    setPipeline(pipeline: PipelineAccessor): void;
    start(): Promise<number>;
    /** Push a reload signal to all connected browsers. */
    notifyReload(reason: string): void;
    stop(): void;
    private attachFigmaListeners;
    private detachFigmaListeners;
    private buildWidgetStatusPayload;
    /** Broadcast an SSE event to all connected monitor clients. */
    private broadcastSSE;
    /** Map action names from monitor.html to bridge commands. */
    private dispatchAction;
}