docs: rebalance prose cleanup and add trimming skill

packages/code-runtime/code-runtime-worker/src/protocol.ts

@@ -1,5 +1,7 @@
 /**
- * Wire protocol between the host runtime and the worker bootstrap.
+ * Versionless, structured-clone wire protocol between co-shipped host and worker code. The host
+ * treats inbound traffic as hostile because model code can forge `parentPort` messages; the
+ * worker trusts host replies.
  * @module @deepseek-ai/dsh-code-runtime-worker/src/protocol
  */