/**
 * Sanitize an stx-built page for use as an extension page.
 *
 * MV3 extension pages run under a strict CSP (`script-src 'self'`) — no inline
 * `<script>` or `<style>`, and asset URLs must be relative (the page loads from
 * `chrome-extension://…/<name>.html`, not a web root). stx emits dev niceties
 * (SEO meta, an inline style block, an inline hydration script) and absolute
 * `/asset` paths, so strip/rewrite them, keeping only the page's own compiled
 * script(s).
 */
export declare function sanitizeExtensionHtml(html: string, ownScripts: string[]): string;