Serialize non-function properties of server-side objects as cachedProps so simple property reads don't require additional RPCs. Added cachedProps to SerializedValue, have RpcServer.storeObjectRef serialize and attach cachedProps (skipping functions), updated serializer to deserialize cachedProps and pass them to proxyCreator, and updated client proxy creation to accept cachedProps and return cached top-level properties directly. Tests updated to expect direct property access for serialized/simple objects and arrays.
Introduce remote object references (refId) and deep proxy support across client, server, serializer and types. Key changes:
- Add refId propagation in client proxies so child proxies inherit and include refId on RPC requests.
- Extend serializer to handle a new SerializedValueType.OBJECT_REF, add refResolver and pass refId to proxyCreator.
- Server: store object references in a Map with generated ref IDs, resolve paths with optional refId, serialize results to OBJECT_REF when shouldProxyResult returns true, and release cleans up references. Add defaultShouldProxyResult heuristic to decide which return values should remain proxied (class instances and objects with methods).
- Types: add refId fields and ObjectRef shape, expose shouldProxyResult option on RpcServerOptions, and include refId in ProxyMeta and serialized values.
- Tests updated across the suite to expect proxied return values (arrays/objects/class instances) and to await property access or method calls; add comprehensive tests for deep return value proxying, chained calls, callbacks, constructors on returned proxies, and lifecycle of remote object proxies.
These changes enable returning live/proxied remote objects (including class instances and objects with methods) from RPC calls, preserving remote behavior and allowing subsequent operations to target the same server-side object.
Introduce a new napcat-rpc package implementing a deep-proxy RPC system. Adds client (createDeepProxy, proxy helpers), server (RpcServer, createRpcServer), serializer (serialize/deserialize, callback registry), and transport layers (LocalTransport, MessageTransport, message server handler), plus an easy API (createRpcPair, mockRemote, createServer, createClient). Includes TypeScript types, tsconfig and package.json. Wire-up: add package alias in napcat-schema vite config and add napcat-rpc dependency to napcat-test along with comprehensive rpc tests.
