Free legal-compliance check of a public website (no signup). Fetches the URL server-side and detects data processing relevant to compliance — analytics, marketing pixels, payments, generative AI, email collection, third-party sharing — then returns the legal documents and cookie-consent setup the site needs, whether the EU AI Act applies, and suggestedAnswers you can pass straight to generate_policies. Result contract: `fetched` is true only when the page HTML was actually read; when false, `fetchError` says why ("unreachable": the URL could not be resolved or connected; "blocked": the server answered with an error status) and the detected signals are NOT meaningful — report the check as inconclusive, not as clean. Run it again after adding any SDK, analytics, payment, auth or AI integration: when an appId is passed (or read from the installed LexVibe snippet) the result ALWAYS includes a `drift` key — status "in_sync", "outdated" (listing processing the hosted legal documents don't cover yet) or "unavailable" with a bounded `reason` (no-database, app-not-found, no-baseline, domain-mismatch, page-not-fetched) when the comparison could not be made; treat "unavailable" as unknown, never as in sync. Read-only.