调整根目录结构，kb/logs/media/nltk_data 移动到专用数据目录（可配置，默认 data）。注意知识库文件要做相应移动

.gitignore

@@ -3,9 +3,10 @@
 *.bak
 logs
 /media/
-/knowledge_base/*
-!/knowledge_base/samples
-/knowledge_base/samples/vector_store
+/data/*
+!/data/knowledge_base/samples
+/data/knowledge_base/samples/vector_store
+!/data/nltk_data
 
 /configs/*.py
 /configs/loom.yaml

.gitmodules

@@ -1,3 +1,3 @@
 [submodule "knowledge_base/samples/content/wiki"]
-	path = knowledge_base/samples/content/wiki
+	path = data/knowledge_base/samples/content/wiki
 	url = https://github.com/chatchat-space/Langchain-Chatchat.wiki.git