viendesu core

Gotchas

Patch fields in requests

#[serde_with::apply(Patch => #[serde(default)])] must be written above #[data]. #[data] emits its serde derives above the re-emitted item, so an apply placed below it expands too late to add #[serde(default)] to the fields — omitting a Patch field then fails with missing field instead of meaning Keep. Guarded by protocol/tests/patch_defaults.rs.

TODO: fix in eva itself (make #[data] hoist remaining item attributes above its derives, or reject a late serde_with::apply), then drop this note.