chore(release): v4.2.1 — fix Python SDK wheel build (#80)

The 4.2.0 release published to crates.io and npm but the Python SDK wheel build
failed (so PyPI + GitHub Release were skipped):

  error[E0063]: missing field `allow_manual_delegation` in initializer of
  `AutoDelegationConfig`

The `PyAutoDelegationConfig -> AutoDelegationConfig` conversion used a struct
literal that didn't include the `allow_manual_delegation` field added to the
core config. Core CI never caught it because the SDKs are excluded from the core
workspace and only built at release time (maturin). The Node SDK was fine — it
builds the config via `Default::default()` + field assignment.

Fix: the Python conversion now uses `..Default::default()` for fields it does
not expose, so new core fields can't break the wheel build again. Verified the
Python SDK compiles. Version bumped 4.2.0 -> 4.2.1 to complete the release
across all channels.

Co-authored-by: Claude <claude@anthropic.com>

Author: ZhiXiao-Lin

CHANGELOG.md

@@ -5,6 +5,18 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [4.2.1] - 2026-06-23
+
+### Fixed
+
+- Python SDK wheel build (and therefore the PyPI + GitHub Release publish steps)
+  failed for 4.2.0: the `PyAutoDelegationConfig → AutoDelegationConfig`
+  conversion used a struct literal that omitted the `allow_manual_delegation`
+  field added to `AutoDelegationConfig`. The conversion now falls back to core
+  defaults for fields the Python SDK does not expose, so future core fields no
+  longer break the wheel build. (The crates.io and npm 4.2.0 artifacts were
+  unaffected; 4.2.1 completes the release across all channels.)
+
 ## [4.2.0] - 2026-06-23
 
 ### Added

Cargo.lock

@@ -1,6 +1,6 @@
 [package]
 name = "a3s-code-core"
-version = "4.2.0"
+version = "4.2.1"
 edition = "2021"
 authors = ["A3S Lab Team"]
 license = "MIT"

core/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "a3s-code-node"
-version = "4.2.0"
+version = "4.2.1"
 edition = "2021"
 authors = ["A3S Lab Team"]
 license = "MIT"
@@ -11,7 +11,7 @@ description = "A3S Code Node.js bindings - Native addon via napi-rs"
 crate-type = ["cdylib"]
 
 [dependencies]
-a3s-code-core = { version = "4.2.0", path = "../../core", features = ["ahp", "s3", "serve"] }
+a3s-code-core = { version = "4.2.1", path = "../../core", features = ["ahp", "s3", "serve"] }
 napi = { version = "2", features = ["async", "napi6", "serde-json"] }
 napi-derive = "2"
 tokio = { version = "1.35", features = ["full"] }

sdk/node/Cargo.toml

@@ -1,6 +1,6 @@
 {
   "name": "@a3s-lab/code",
-  "version": "4.2.0",
+  "version": "4.2.1",
   "description": "A3S Code - Native Node.js bindings for the coding-agent runtime",
   "main": "index.js",
   "types": "index.d.ts",
@@ -43,11 +43,11 @@
     "test:helpers": "node test-helpers.mjs"
   },
   "optionalDependencies": {
-    "@a3s-lab/code-darwin-arm64": "4.2.0",
-    "@a3s-lab/code-linux-x64-gnu": "4.2.0",
-    "@a3s-lab/code-linux-x64-musl": "4.2.0",
-    "@a3s-lab/code-linux-arm64-gnu": "4.2.0",
-    "@a3s-lab/code-linux-arm64-musl": "4.2.0",
-    "@a3s-lab/code-win32-x64-msvc": "4.2.0"
+    "@a3s-lab/code-darwin-arm64": "4.2.1",
+    "@a3s-lab/code-linux-x64-gnu": "4.2.1",
+    "@a3s-lab/code-linux-x64-musl": "4.2.1",
+    "@a3s-lab/code-linux-arm64-gnu": "4.2.1",
+    "@a3s-lab/code-linux-arm64-musl": "4.2.1",
+    "@a3s-lab/code-win32-x64-msvc": "4.2.1"
   }
 }

sdk/node/examples/package-lock.json

@@ -7,7 +7,7 @@ name = "a3s-code"
 # Keep in sync with crates/code core release. The bootstrap loader fetches
 # the matching native wheel from `https://github.com/AI45Lab/Code/releases/tag/v<version>`
 # at import time.
-version = "4.2.0"
+version = "4.2.1"
 description = "A3S Code Python SDK — pure-Python bootstrap that fetches the native wheel from GitHub Releases"
 readme = "README.md"
 license = {text = "MIT"}

sdk/node/package-lock.json

@@ -31,7 +31,7 @@
 
 # Version is the bootstrap's own version, which equals the matching native
 # wheel version on GH Releases. Bumped by the release workflow.
-__version__ = "4.2.0"
+__version__ = "4.2.1"
 
 _DEFAULT_BASE_URL = "https://github.com/AI45Lab/Code/releases/download"
 _REQUEST_TIMEOUT_S = 120