refactor: archive GUI clients; keep minimal TUI with hooks/API

Move Qt/Tauri/full Web SPA under archive/, ship hermit as CLI/TUI plus
libcstcore and cst-webui/1 HTTP+SSE (turn lifecycle hooks, capabilities).

Co-authored-by: Cursor <cursoragent@cursor.com>

scripts/e2e_webui_settings.py

@@ -151,8 +151,8 @@ def serve(handler):
 api_a, api_b = serve(A), serve(B)
 ws = tempfile.mkdtemp(prefix="cst-set-")
 home = tempfile.mkdtemp(prefix="cst-home-")
-cfgdir = home + "/.config/cst-agent"
-os.makedirs(cfgdir)
+cfgdir = home + "/.config/hermit"
+os.makedirs(cfgdir, exist_ok=True)
 with open(cfgdir + "/models.json", "w") as f:
     json.dump({"providers": {"fakeb": {"api_base": "http://127.0.0.1:%d/v1" % api_b.server_address[1],
                                        "key_env": "FAKEB_API_KEY", "default_model": ""}},