fb6c796059
pkg/membership TestRequireEncryptedRoomsRejectsCleartext: cleartext create -> 403, encrypted -> 201, flag off -> cleartext allowed again. pkg/client TestAudit_NoSubjectACL: under the public posture a ModeNATS room is refused; bob (member) decrypts the secret; eve raw-subscribes to the subject off the data plane and receives only ciphertext (non-empty AEAD nonce, no plaintext substring) — closing the auditor's 'eve reads internal: salary numbers'.