export interface NpmInstallResult {
    exitCode: number;
    stderr: string;
    stdout: string;
}
/**
 * Run `npm ci --omit=dev` in installDir.
 * Returns exitCode + collected stderr on failure.
 * Throws with installCode = BUNDLE.NPM_CI_FAILED on non-zero exit or timeout.
 */
export declare function runNpmCi(installDir: string): Promise<NpmInstallResult>;
/**
 * Verify that dist/bundle/server.js still exists after npm install.
 *
 * Why dist/bundle/server.js (2026-04-26 Day -1 fix):
 *   shared/contracts/envelope-v2/skill-distribution.ts BUNDLE_REQUIRED_ENTRY_FILES
 *   declares 'dist/bundle/server.js' as the canonical entry (esbuild single-file inline
 *   bundle). tar-extractor already validates this at extract time. This post-install
 *   hook is a defense-in-depth re-check (catches accidental removal during npm install).
 *
 *   Pre-fix bug: this checked installDir/runtime/server.js — wrong path entirely
 *   (TS source dir, no .js file would ever exist there in production). Test fixtures
 *   put server.js at runtime/ which masked the bug until live agent installation hit.
 */
export declare function verifyServerJs(installDir: string): void;
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