fix(shell): fix bash timeout hang when daemon inherits stdio pipes (#10)

- destroy stdout/stderr on abort to release stdio pipes held by detached daemons\n- use `exit` instead of `close` event to resolve exit promise

Co-authored-by: haozhe.yang <yanghaozhe@moonshot.ai>

packages/agent-core/src/tools/builtin/shell/bash.ts

@@ -275,6 +275,17 @@ export class BashTool implements BuiltinTool<BashInput> {
           /* ignore */
         }
       }
+
+      try {
+        proc.stdout.destroy();
+      } catch {
+        /* ignore */
+      }
+      try {
+        proc.stderr.destroy();
+      } catch {
+        /* ignore */
+      }
     };
 
     const onAbort = (): void => {

packages/kaos/src/local.ts

@@ -58,7 +58,7 @@ class LocalProcess implements KaosProcess {
     this.pid = child.pid ?? -1;
 
     this._exitPromise = new Promise<number>((resolve, reject) => {
-      child.on('close', (code: number | null) => {
+      child.on('exit', (code: number | null) => {
         this._exitCode = code ?? -1;
         resolve(this._exitCode);
       });