fix: getWidgetById with popup scope, no PopupWindow binds

wwwroot/api/workspace_popup.dspy

@@ -1,4 +1,4 @@
-# workspace_popup.dspy - 返回 PopupWindow（全量树，binds在顶层）
+# workspace_popup.dspy - 返回 PopupWindow（纯widget结构，无binds）
 
 uid = await get_user()
 if not uid:
@@ -68,16 +68,6 @@ async with DBPools().sqlorContext(dbname) as sor:
                         }
                     }
                 ]
-            }],
-            "binds": [{
-                "wid": "ws_tree",
-                "event": "selected",
-                "actiontype": "urlwidget",
-                "target": "ws_files",
-                "options": {
-                    "url": entire_url("/pipeline-sdlc/api/workspace_files.dspy"),
-                    "event_params": ["user_data.id"]
-                }
             }]
         }