GHSA-RJ4G-RQGH-RX9H Ech0 comment model's Email field returned on public /api/comments endpoints

Summary The Comment model serializes its Email field through the public comment-listing API. internal/model/comment/comment.go:33 uses json:"email", while adjacent PII fields IPHash, UserAgent correctly use json:"-". The public endpoints GET /api/comments?echoid=X and GET...