feat: add delayed prompt modal

tests/test_tui.py

@@ -1050,6 +1050,80 @@ async def test_session_list_renders_harness_name_brackets():
         assert any("[claude]" in t for t in texts), f"harness name missing: {texts}"
 
 
+# ---------------------------------------------------------------------------
+# SchedulePromptScreen: parse + submit
+# ---------------------------------------------------------------------------
+
+
+def test_parse_delay_accepts_compact_seconds_minutes_hours():
+    from datetime import timedelta
+
+    from hqt.tui.screens.schedule_prompt import parse_delay
+
+    assert parse_delay("90s") == timedelta(seconds=90)
+    assert parse_delay("30m") == timedelta(minutes=30)
+    assert parse_delay("2h") == timedelta(hours=2)
+    assert parse_delay("1h30m") == timedelta(hours=1, minutes=30)
+
+
+@pytest.mark.parametrize("value", ["", "0m", "abc", "1d", "1h 30m"])
+def test_parse_delay_rejects_invalid_values(value):
+    from hqt.tui.screens.schedule_prompt import parse_delay
+
+    with pytest.raises(ValueError):
+        parse_delay(value)
+
+
+@pytest.mark.asyncio
+@pytest.mark.parametrize("submit_action", ["enter", "ok"])
+async def test_schedule_prompt_screen_submits_prompt_and_delay(submit_action):
+    from datetime import timedelta
+
+    from hqt.tui.screens.schedule_prompt import SchedulePromptScreen
+    from textual.widgets import Button, Input
+
+    app = HqtApp()
+    async with app.run_test(size=(120, 40)) as pilot:
+        results = []
+        app.push_screen(SchedulePromptScreen(), results.append)
+        await pilot.pause()
+
+        prompt = app.screen.query_one("#prompt-input", Input)
+        prompt.value = "continue work"
+        app.screen.query_one("#delay-input", Input).value = "1h30m"
+        prompt.focus()
+        await pilot.pause()
+        if submit_action == "enter":
+            await pilot.press("enter")
+        else:
+            app.screen.query_one("#ok-btn", Button).press()
+        await pilot.pause()
+
+        assert results == [("continue work", timedelta(hours=1, minutes=30))]
+
+
+@pytest.mark.asyncio
+async def test_schedule_prompt_screen_invalid_delay_stays_open_with_error():
+    from hqt.tui.screens.schedule_prompt import SchedulePromptScreen
+    from textual.widgets import Button, Input, Label
+
+    app = HqtApp()
+    async with app.run_test(size=(120, 40)) as pilot:
+        results = []
+        app.push_screen(SchedulePromptScreen(), results.append)
+        await pilot.pause()
+
+        app.screen.query_one("#prompt-input", Input).value = "continue work"
+        app.screen.query_one("#delay-input", Input).value = "1h 30m"
+        app.screen.query_one("#ok-btn", Button).press()
+        await pilot.pause()
+
+        assert isinstance(app.screen, SchedulePromptScreen)
+        assert results == []
+        error = app.screen.query_one("#schedule-error", Label)
+        assert "Use a delay like" in str(error.render())
+
+
 # ---------------------------------------------------------------------------
 # RenameSessionScreen: prefill + submit
 # ---------------------------------------------------------------------------