feat: add exec pty support

src/agents/bash-tools.exec.pty.test.ts

@@ -0,0 +1,20 @@
+import { afterEach, expect, test } from "vitest";
+
+import { createExecTool } from "./bash-tools.exec";
+import { resetProcessRegistryForTests } from "./bash-process-registry";
+
+afterEach(() => {
+  resetProcessRegistryForTests();
+});
+
+test("exec supports pty output", async () => {
+  const tool = createExecTool({ allowBackground: false });
+  const result = await tool.execute("toolcall", {
+    command: "node -e 'process.stdout.write(\"ok\")'",
+    pty: true,
+  });
+
+  expect(result.details.status).toBe("completed");
+  const text = result.content?.[0]?.text ?? "";
+  expect(text).toContain("ok");
+});