docs(code-runtime-python): fix the doc-standard registry and README kind

The audited library registry still listed dsh-code-runtime-python as a plain
protocol library, but the shipped package's src/index.ts has a plugin default
export; the entry is removed from PACKAGE_LIBRARIES and both READMEs declare
kind: package-reference. The zh README heading is 概述 per the standard.

packages/code-runtime/code-runtime-python/README.i18n.yaml

@@ -2,5 +2,5 @@
 # side as of the last confirmed-consistent state. Both languages carry equal authority;
 # after editing either side, bring the other along and re-record with:
 #   pnpm run verify-translation-pairing --write packages/code-runtime/code-runtime-python/README.md
-README.md: 26c4db82f0caf8a1d4333480426621e75e7610b9
-README.zh.md: ee754d03e747b01fa11443d22e156d1b5ebde9fd
+README.md: 7b116c4d51df44e0db519fdf0fd73a1776dfb4f1
+README.zh.md: 2f367d6bde6d79163be9e45e2bdea61ab0f62958

packages/code-runtime/code-runtime-python/README.md

@@ -1,6 +1,6 @@
 ---
 description: "CPython-subprocess code runtime: the dsh-code-runtime seam implementation for Python model code, with the fd-3 wire protocol it speaks."
-kind: "package-library"
+kind: "package-reference"
 ---
 
 # @deepseek-ai/dsh-code-runtime-python

packages/code-runtime/code-runtime-python/README.zh.md

@@ -1,13 +1,13 @@
 ---
 description: "CPython 子进程代码 runtime：为 Python 模型代码实现 dsh-code-runtime seam，及其使用的 fd-3 wire 协议。"
-kind: "package-library"
+kind: "package-reference"
 ---
 
 # @deepseek-ai/dsh-code-runtime-python
 
 [English](README.md) | 中文
 
-## 摘要
+## 概述
 
 `dsh-code-runtime-python` 交付 `PythonCodeRuntime`——[`dsh-code-runtime`](../code-runtime/README.zh.md) seam 的 CPython 子进程实现：它以 `language: 'python'`、`isolation: 'process'` 注册为 `codeRuntime`，每次 `run()` 启动一个全新的 `python3 -I` 子进程，把程序作为 async 函数体执行，通过子进程 fd 3 上的无版本 JSON-lines 协议通信（stdout/stderr 留给程序自己的输出）。宿主侧（`src/protocol.ts`）把每条入站帧都视为敌意并逐字段重建后才读取；Python 侧（`py/protocol.py`）镜像消息词汇。隔离（不是安全边界——模型代码与 bash 同等的信任）来自空环境、`RLIMIT_CPU`/`RLIMIT_AS`、墙钟上限与 `SIGTERM`→宽限→`SIGKILL` 进程组拆卸，所有上限都在插件加载期校验。