feat: add managed tool gateway and Nous subscription support

- add managed modal and gateway-backed tool integrations\n- improve CLI setup, auth, and configuration for subscriber flows\n- expand tests and docs for managed tool support

tests/hermes_cli/test_setup_noninteractive.py

@@ -1,7 +1,7 @@
 """Tests for non-interactive setup and first-run headless behavior."""
 
 from argparse import Namespace
-from unittest.mock import patch
+from unittest.mock import MagicMock, patch
 
 import pytest
 
@@ -92,3 +92,48 @@ class TestNonInteractiveSetup:
         mock_setup.assert_not_called()
         out = capsys.readouterr().out
         assert "hermes config set model.provider custom" in out
+
+    def test_returning_user_terminal_menu_choice_dispatches_terminal_section(self, tmp_path):
+        """Returning-user menu should map Terminal Backend to the terminal setup, not TTS."""
+        from hermes_cli import setup as setup_mod
+
+        args = _make_setup_args()
+        config = {}
+        model_section = MagicMock()
+        tts_section = MagicMock()
+        terminal_section = MagicMock()
+        gateway_section = MagicMock()
+        tools_section = MagicMock()
+        agent_section = MagicMock()
+
+        with (
+            patch.object(setup_mod, "ensure_hermes_home"),
+            patch.object(setup_mod, "load_config", return_value=config),
+            patch.object(setup_mod, "get_hermes_home", return_value=tmp_path),
+            patch.object(setup_mod, "is_interactive_stdin", return_value=True),
+            patch.object(
+                setup_mod,
+                "get_env_value",
+                side_effect=lambda key: "sk-test" if key == "OPENROUTER_API_KEY" else "",
+            ),
+            patch("hermes_cli.auth.get_active_provider", return_value=None),
+            patch.object(setup_mod, "prompt_choice", return_value=4),
+            patch.object(
+                setup_mod,
+                "SETUP_SECTIONS",
+                [
+                    ("model", "Model & Provider", model_section),
+                    ("tts", "Text-to-Speech", tts_section),
+                    ("terminal", "Terminal Backend", terminal_section),
+                    ("gateway", "Messaging Platforms (Gateway)", gateway_section),
+                    ("tools", "Tools", tools_section),
+                    ("agent", "Agent Settings", agent_section),
+                ],
+            ),
+            patch.object(setup_mod, "save_config"),
+            patch.object(setup_mod, "_print_setup_summary"),
+        ):
+            setup_mod.run_setup_wizard(args)
+
+        terminal_section.assert_called_once_with(config)
+        tts_section.assert_not_called()