test(discord): cover voice timeout under voice-off mode

Assert the inactivity handler skips disconnect (and the channel spam) when the
voice-mode getter reports "off", and still disconnects on genuine inactivity
when the mode is active.

tests/gateway/test_voice_command.py

@@ -1929,6 +1929,49 @@ class TestVoiceTimeoutCleansRunnerState:
 
         assert 111 not in adapter._voice_clients
 
+    @pytest.mark.asyncio
+    async def test_timeout_skips_disconnect_when_voice_mode_off(self, adapter):
+        """Voice-off is deliberate text-only mode, not idle neglect — the
+        inactivity timer must NOT disconnect or spam the channel (#PanBartosz)."""
+        disconnect_calls = []
+        adapter._on_voice_disconnect = lambda chat_id: disconnect_calls.append(chat_id)
+        adapter._voice_mode_getter = lambda chat_id: "off"
+
+        mock_vc = MagicMock()
+        mock_vc.is_connected.return_value = True
+        mock_vc.disconnect = AsyncMock()
+        adapter._voice_clients[111] = mock_vc
+        adapter._voice_text_channels[111] = 999
+        adapter._voice_timeout_tasks[111] = MagicMock()
+
+        with patch("asyncio.sleep", new_callable=AsyncMock):
+            await adapter._voice_timeout_handler(111)
+
+        # Still connected, no disconnect callback, no "inactivity timeout" spam.
+        assert 111 in adapter._voice_clients
+        assert disconnect_calls == []
+        mock_vc.disconnect.assert_not_called()
+
+    @pytest.mark.asyncio
+    async def test_timeout_still_disconnects_when_voice_mode_active(self, adapter):
+        """A non-off mode still auto-disconnects on genuine inactivity."""
+        disconnect_calls = []
+        adapter._on_voice_disconnect = lambda chat_id: disconnect_calls.append(chat_id)
+        adapter._voice_mode_getter = lambda chat_id: "all"
+
+        mock_vc = MagicMock()
+        mock_vc.is_connected.return_value = True
+        mock_vc.disconnect = AsyncMock()
+        adapter._voice_clients[111] = mock_vc
+        adapter._voice_text_channels[111] = 999
+        adapter._voice_timeout_tasks[111] = MagicMock()
+
+        with patch("asyncio.sleep", new_callable=AsyncMock):
+            await adapter._voice_timeout_handler(111)
+
+        assert 111 not in adapter._voice_clients
+        assert disconnect_calls == ["999"]
+
 
 # =====================================================================
 # Bug 6: play_in_voice_channel has playback timeout