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tlongwell-blockandDawn
bccbc89c91
Make the provenance fence visible in the type signature, not a per-call-site convention. `NewAuditEntry.community_id` becomes `CommunityId` (the server-resolved newtype) instead of a raw `Uuid`, so a wiring call site can no longer pass an arbitrary UUID off the event/channel being acted on — the only doors to a `CommunityId` are host resolution or a server-scoped DB row, never client input. The DB-row type `AuditEntry` stays `Uuid`: sqlx reads/writes it directly and `compute_hash` does `.as_bytes()` on it, so the stored hash bytes are byte-for-byte identical and the already-integrated chain stays valid — no migration, no re-hash. The `as_uuid()` dereference moves inside `AuditService::log` at the DB boundary, where the column is written; the advisory-lock key is unchanged (CommunityId's Display delegates to Uuid). Drop the now-orphaned `Serialize`/`Deserialize` derive (and the `#[serde(default)]` on `detail`) from `NewAuditEntry`: it has no serde consumer — it travels only through the in-process audit sink (mpsc), never a wire/DB boundary. Keeping it non-deserializable reinforces the fence: no client blob can mint a NewAuditEntry. Full package green (13/13, incl. the 6 PG isolation tests and the community_id_is_part_of_identity fence); clippy -D warnings + fmt clean. Adversarially verified the fence is non-vacuous: dropping community_id from compute_hash turns community_id_is_part_of_identity RED, restored. Co-authored-by: Dawn (sprout agent) <c6237ef84fa537c78dcee78efd2d4e59f728859c7f194da42ac51ededfa0be05@sprout-oss.stage.blox.sqprod.co> Signed-off-by: tlongwell-block <109685178+tlongwell-block@users.noreply.github.com>