新增rag功能，支持用户上传、聊天提供文件夹或文件地址上传rag知识库，删除、查询个人知识库及暴露source给agent以获取所有知识来源；新增获取文件tree . /f工具

.env

@@ -14,14 +14,14 @@ TTS_BASE_URL = "http://192.168.137.96:8902"
 RAG_BASE_URL = "http://192.168.137.96:8903"
 
 #6000pro：
-LLM_API_KEY='semi-ai.tech'
-LLM_BASE_URL="http://semi-ai.tech:40056/v1"
-LLM_MODEL = "Intel/Qwen3.6-35B-A3B-int4-mixed-AutoRound"
+# LLM_API_KEY='semi-ai.tech'
+# LLM_BASE_URL="http://semi-ai.tech:40056/v1"
+# LLM_MODEL = "Intel/Qwen3.6-35B-A3B-int4-mixed-AutoRound"
 
 #A100：
-# LLM_API_KEY = 'sk-kGhWAQTqLk9ECsmIDb758a456bD34e92B9771dF2E36432Fb'
-# LLM_BASE_URL = "https://app.semi-ai.tech:60004/v1"
-# LLM_MODEL = "Qwen3.5-122B-A10B"
+LLM_API_KEY = 'sk-kGhWAQTqLk9ECsmIDb758a456bD34e92B9771dF2E36432Fb'
+LLM_BASE_URL = "https://app.semi-ai.tech:60004/v1"
+LLM_MODEL = "Qwen3.5-122B-A10B"
 # LLM_TIMEOUT = 300  
 # LLM_REQUESTS_PER_SECOND = 10.0
 # LLM_MAX_BUCKET_SIZE = 10