/**
 * API server start and WebSocket upgrade handler.
 *
 * Extracted from cli/commands/start.ts (Task 12 Part A).
 * Waits for port availability, starts the API server, sets up
 * the WebSocket upgrade handler (setup-ws local + /ws proxy to
 * embedding port), and enforces auth on non-localhost connections.
 */
import type { ApiServer } from '../../api/index.js';
/** Anything that can be stopped during shutdown. */
export type Stoppable = {
    stop: () => Promise<void> | void;
};
export interface StartServerParams {
    apiServer: ApiServer;
    gateways: Stoppable[];
}
/**
 * Wait for the API port, start the server, set up WebSocket
 * upgrade handling, and push the server into the gateways array.
 */
export declare function startServer(params: StartServerParams): Promise<void>;
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