fix(dashboard): Config page header shows the switched profile's config.yaml path (#44374)

The Config page read config_path from /api/status, which is machine-global
and always reports the profile the dashboard process was started under.
After switching profiles with the global switcher, the header kept showing
the old profile's path (e.g. /root/.hermes/profiles/worker_1/config.yaml)
even though reads/writes correctly targeted the new profile.

Fix: /api/config/raw now returns the resolved path alongside the YAML
(resolved inside _profile_scope, so it follows ?profile=). ConfigPage
prefers that scoped path and only falls back to /api/status for old
servers. ProfileKeyedRoutes already remounts the page on switch, so the
header refreshes immediately.

hermes_cli/web_server.py

@@ -9374,11 +9374,18 @@ class RawConfigUpdate(BaseModel):
 
 @app.get("/api/config/raw")
 async def get_config_raw(profile: Optional[str] = None):
+    """Raw config.yaml text plus its resolved path.
+
+    ``path`` is resolved inside ``_profile_scope`` so the Config page header
+    shows the file the switched profile actually reads/writes — /api/status's
+    ``config_path`` is machine-global and always reports the dashboard
+    process's own profile, which is wrong under the global profile switcher.
+    """
     with _profile_scope(profile):
         path = get_config_path()
     if not path.exists():
-        return {"yaml": ""}
-    return {"yaml": path.read_text(encoding="utf-8")}
+        return {"yaml": "", "path": str(path)}
+    return {"yaml": path.read_text(encoding="utf-8"), "path": str(path)}
 
 
 @app.put("/api/config/raw")