Manage ragflow-sdk with poetry (#3115)

### What problem does this PR solve?

Manage ragflow-sdk with poetry
### Type of change

- [x] Refactoring

sdk/python/ragflow_sdk/modules/document.py

@@ -0,0 +1,77 @@
+import json
+from .base import Base
+from .chunk import Chunk
+from typing import List
+
+
+class Document(Base):
+    class ParserConfig(Base):
+        def __init__(self, rag, res_dict):
+            super().__init__(rag, res_dict)
+
+    def __init__(self, rag, res_dict):
+        self.id = ""
+        self.name = ""
+        self.thumbnail = None
+        self.dataset_id = None
+        self.chunk_method = "naive"
+        self.parser_config = {"pages": [[1, 1000000]]}
+        self.source_type = "local"
+        self.type = ""
+        self.created_by = ""
+        self.size = 0
+        self.token_count = 0
+        self.chunk_count = 0
+        self.progress = 0.0
+        self.progress_msg = ""
+        self.process_begin_at = None
+        self.process_duration = 0.0
+        self.run = "0"
+        self.status = "1"
+        for k in list(res_dict.keys()):
+            if k not in self.__dict__:
+                res_dict.pop(k)
+        super().__init__(rag, res_dict)
+
+
+    def update(self, update_message: dict):
+        res = self.put(f'/datasets/{self.dataset_id}/documents/{self.id}',
+                       update_message)
+        res = res.json()
+        if res.get("code") != 0:
+            raise Exception(res["message"])
+
+    def download(self):
+        res = self.get(f"/datasets/{self.dataset_id}/documents/{self.id}")
+        try:
+            res = res.json()
+            raise Exception(res.get("message"))
+        except json.JSONDecodeError:
+            return res.content
+
+
+    def list_chunks(self,offset=0, limit=30, keywords="", id:str=None):
+        data={"document_id": self.id,"keywords": keywords,"offset":offset,"limit":limit,"id":id}
+        res = self.get(f'/datasets/{self.dataset_id}/documents/{self.id}/chunks', data)
+        res = res.json()
+        if res.get("code") == 0:
+            chunks=[]
+            for data in res["data"].get("chunks"):
+                chunk = Chunk(self.rag,data)
+                chunks.append(chunk)
+            return chunks
+        raise Exception(res.get("message"))
+
+
+    def add_chunk(self, content: str,important_keywords:List[str]=[]):
+        res = self.post(f'/datasets/{self.dataset_id}/documents/{self.id}/chunks', {"content":content,"important_keywords":important_keywords})
+        res = res.json()
+        if res.get("code") == 0:
+            return Chunk(self.rag,res["data"].get("chunk"))
+        raise Exception(res.get("message"))
+
+    def delete_chunks(self,ids:List[str] = None):
+        res = self.rm(f"datasets/{self.dataset_id}/documents/{self.id}/chunks",{"ids":ids})
+        res = res.json()
+        if res.get("code")!=0:
+            raise Exception(res.get("message"))