feat: support key combinations in press_key function and update related tests

tests/test_agent_tools.py

@@ -16,6 +16,7 @@ class _DummyPyAutoGUI:
     def __init__(self) -> None:
         self.last_move_to: tuple[int, int] | None = None
         self.last_click: tuple[int, int] | None = None
+        self.last_hotkey: tuple[str, ...] | None = None
 
     def screenshot(self) -> Image.Image:
         return Image.new("RGB", (1280, 720), color=(24, 24, 24))
@@ -35,6 +36,9 @@ class _DummyPyAutoGUI:
     def press(self, _: str) -> None:
         return None
 
+    def hotkey(self, *keys: str) -> None:
+        self.last_hotkey = tuple(keys)
+
 
 def _build_agent(tmp_path: Path, monkeypatch) -> agent_module.ScreenJobAgent:
     dummy_gui = _DummyPyAutoGUI()
@@ -89,3 +93,12 @@ def test_click_supports_directional_offsets(tmp_path: Path, monkeypatch) -> None
     )
     assert click_result["ok"] is True
     assert click_result["clicked"] == {"x": 110, "y": 102}
+
+
+def test_press_key_supports_hotkey_combo(tmp_path: Path, monkeypatch) -> None:
+    agent = _build_agent(tmp_path, monkeypatch)
+    result = agent._tool_press_key({"key": "meta+r"})
+    assert result["ok"] is True
+    assert result["key"] == "win+r"
+    assert result["message"] == "Key combo executed."
+    assert agent_module.pyautogui.last_hotkey == ("win", "r")