Get Verdict Proof

FREE, no-auth: raw retrieval of a durably-stored /review(sign=true), /witness, or /prove signed event by its Nostr event_id -- the full {id,pubkey,created_at,kind,tags,content,sig}, not our own verdict on it. Distinct from POST /verify-proof (which runs OUR check and returns a verdict): this hands over the exact bytes so a third party can run their OWN independent recompute, never trusting our check either. Real gap this closes (found live 2026-07-31, jamesavechives, ethereum-magicians t/29194#8): a bare {id, pubkey, sig} pasted into a reply lets a reader verify the SIGNATURE over that id, but not id_integrity/decision_ref_recomputes/artifact_hash_matches, which need created_at/kind/ tags/content too -- and public relay copies of these (kind 30078, parameterized-replaceable) are not guaranteed to persist. 404 for anything predating this fix or an HMAC-fallback proof with no event.