pub fn publish_wrapped(payload: &Value) -> Result<PublishedCard, String>Expand description
Publish a whitelisted Wrapped payload. Accepts either a bare payload (legacy anonymous) or a
signed envelope {payload_json, public_key, signature} (login-less identity → server upsert).
No account auth; the server rate-limits per IP. Contract: docs/contracts/wrapped-permalink-v1.md.