fix: bricks Tabular expects {rows,total} format in API response

init.py

@@ -29,10 +29,11 @@ async def kb_list_handler(request, params_kw, *args, **kwargs):
         userorgid = await env.get_userorgid()
         async with get_sor_context(env, 'rag') as sor:
             recs = await sor.R("knowledge_bases", {"org_id": userorgid})
-            return json.dumps({
-                "status": "SUCCEEDED",
-                "knowledge_bases": [dict(r) for r in recs]
-            }, ensure_ascii=False, default=str)
+            rows = [dict(r) for r in recs]
+            # bricks Tabular expects {rows, total} format
+            result = {"rows": rows, "total": len(rows)}
+            result["status"] = "SUCCEEDED" if rows else "empty"
+            return json.dumps(result, ensure_ascii=False, default=str)
     except Exception as e:
         exception(f"kb_list: {e}, {format_exc()}")
         return json.dumps({"error": str(e)})