fix(terminal): use real TTY exec and resize

apps/agent-worker/tests/unit/terminal-resize.test.ts

@@ -0,0 +1,46 @@
+import { afterEach, describe, expect, test, vi } from 'vitest';
+
+const load = async () => {
+  vi.resetModules();
+  process.env.SPOON_WORKER_TOKEN = 'test-worker-token';
+  process.env.GITHUB_APP_ID = '123';
+  process.env.GITHUB_APP_PRIVATE_KEY =
+    '-----BEGIN PRIVATE KEY-----\ntest\n-----END PRIVATE KEY-----';
+  vi.doMock('../../src/worker', () => ({ getTerminalWorkspace: () => null }));
+  vi.doMock('../../src/user-container', () => ({
+    acquireUserBox: vi.fn(),
+  }));
+  return await import('../../src/terminal');
+};
+
+describe('parseResizeMessage', () => {
+  afterEach(() => vi.resetModules());
+
+  test('parses and clamps a resize control frame', async () => {
+    const { parseResizeMessage } = await load();
+    const msg = Buffer.from(
+      JSON.stringify({ type: 'resize', cols: 120, rows: 40 }),
+    );
+    expect(parseResizeMessage(msg, false)).toEqual({ cols: 120, rows: 40 });
+  });
+
+  test('returns null for binary input (raw keystrokes)', async () => {
+    const { parseResizeMessage } = await load();
+    expect(parseResizeMessage(Buffer.from([1, 2, 3]), true)).toBeNull();
+  });
+
+  test('returns null for non-resize JSON', async () => {
+    const { parseResizeMessage } = await load();
+    expect(
+      parseResizeMessage(Buffer.from('{"type":"other"}'), false),
+    ).toBeNull();
+  });
+
+  test('clamps out-of-range dimensions into [1,1000]', async () => {
+    const { parseResizeMessage } = await load();
+    const msg = Buffer.from(
+      JSON.stringify({ type: 'resize', cols: 99999, rows: 0 }),
+    );
+    expect(parseResizeMessage(msg, false)).toEqual({ cols: 1000, rows: 1 });
+  });
+});