* feat: implement source-aware label moderation * refactor: remove self-label authoring * fix: complete label moderation parity * fix: show moderator handle in label details * refactor: strengthen moderation parity architecture * fix moderation label event reconciliation * fix suggested feed moderation parity * fix: follow live labeler policy defaults * fix: keep Spark profile labels profile-scoped * refactor: tighten moderation ownership * fix: update Poptart moderation integration * fix moderation label scope and preference races * fix: close moderation UI gating gaps * refactor moderation reports and labeler settings * fix flaky story image cache test