fix MCPHub group publishing and recovery

platform/mcphub/mcphub_admin_mcp.py

@@ -149,10 +149,23 @@ def _install(name: str, config: dict[str, Any]) -> str:
     }, ensure_ascii=False)
 
 
+def _group_id(name: str) -> str:
+    result = _request("GET", "/groups")
+    rows = result.get("data", []) if isinstance(result, dict) else []
+    match = next(
+        (row for row in rows
+         if isinstance(row, dict) and (row.get("name") == name or row.get("id") == name)),
+        None,
+    )
+    if not isinstance(match, dict) or not match.get("id"):
+        raise HubError(f"MCPHub group does not exist: {name}")
+    return str(match["id"])
+
+
 def _add_to_group(name: str, tools: list[str] | None = None) -> Any:
     if not CLIENT_GROUP:
         return {"skipped": "no-client-group"}
-    group = urllib.parse.quote(CLIENT_GROUP, safe="")
+    group = urllib.parse.quote(_group_id(CLIENT_GROUP), safe="")
     configs = _request("GET", f"/groups/{group}/server-configs")
     rows = configs.get("data", []) if isinstance(configs, dict) else []
     present = any(isinstance(row, dict) and row.get("name") == name for row in rows)
@@ -238,7 +251,7 @@ def mcphub_admin_publish_to_hermes(name: str, tools: list[str] | None = None) ->
 def mcphub_admin_unpublish_from_hermes(name: str) -> str:
     """Remove one server from the central Hermes group without uninstalling or disabling the server itself."""
     name = _name(name)
-    group = urllib.parse.quote(CLIENT_GROUP, safe="")
+    group = urllib.parse.quote(_group_id(CLIENT_GROUP), safe="")
     result = _request("DELETE", f"/groups/{group}/servers/{urllib.parse.quote(name, safe='')}")
     return json.dumps({"unpublished": name, "group": CLIENT_GROUP, "result": _redact(result)}, ensure_ascii=False)