feat: rag retrieving tool call result display (#263)

* feat: local search tool call result display

* chore: add file copyright

* fix: miss edit plan interrupt feedback

* feat: disable pasting html into input box

src/rag/builder.py

@@ -1,3 +1,6 @@
+# Copyright (c) 2025 Bytedance Ltd. and/or its affiliates
+# SPDX-License-Identifier: MIT
+
 from src.config.tools import SELECTED_RAG_PROVIDER, RAGProvider
 from src.rag.ragflow import RAGFlowProvider
 from src.rag.retriever import Retriever