GHSA-fwg2-gr34-q3w8: SurrealDB: ES512 silently downgraded to ES384 due to jsonwebtoken crate limitation

When a user configures ALGORITHM ES512 for any JWT access method (DEFINE ACCESS ... TYPE JWT ALGORITHM ES512), SurrealDB silently substitutes ES384 at all four internal algorithm conversion points. This occurs because the underlying jsonwebtoken crate (v10.x) does not include an ES512 algorithm variant, so the mapping defaults to ES384 without raising an error, warning, or log message.

Users who provide the correct P-521 key type for ES512 will experience authentication handshake failures due to the curve mismatch with ES384 (which expects P-384).