Audit public API and SemVer surface (#103)

crates/libremetaverse-types/src/generated.rs

@@ -1133,7 +1133,7 @@ pub use crate::enum_compat::EnumInfoExtensions;
 ///
 /// C# signature: `System.Object LibreMetaverse.ExpiringCache<TKey, TValue>.Item`.
 /// Mapping contract: ownership `shared_self,owned`; async `sync`;
-/// errors `Result<_, crate::Error>`; overload `direct_snake_case`; kind `method`.
+/// errors `none`; overload `direct_snake_case`; kind `method`.
 pub use crate::collections::ExpiringCache;
 
 /// C# type: `T:LibreMetaverse.ExtraParamType`.

crates/libremetaverse-types/src/shim.rs

@@ -44,6 +44,7 @@ impl std::error::Error for NotImplemented {}
 
 /// Shared error contract for translated fallible APIs.
 #[derive(Clone, Copy, Debug, Eq, Hash, PartialEq)]
+#[non_exhaustive]
 pub enum Error {
     /// The API surface exists but its production body has not been ported yet.
     NotImplemented(NotImplemented),