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_ext.py

@@ -113,11 +113,14 @@ def port():
 
 
 def settings():
-    try:
-        with open(home + "/.config/cst-agent/settings.json", encoding="utf-8") as f:
-            return json.load(f)
-    except OSError:
-        return {}
+    for name in ("hermit", "cst-agent"):
+        path = home + "/.config/%s/settings.json" % name
+        try:
+            with open(path, encoding="utf-8") as f:
+                return json.load(f)
+        except OSError:
+            continue
+    return {}
 
 
 def busy(base):