优化DifyQueryRetrieval和ModelTool中的请求超时设置，调整DifyExporter类中的分类逻辑，移除无用字段，更新词条处理逻辑，

rag2_0/tool/ModelTool.py

@@ -38,7 +38,7 @@ class SiliconFlowEmbeddings(Embeddings):
             "input": input,
             "encoding_format": "float"
         }
-        response = requests.post(self.url, json=payload, headers=self.headers)
+        response = requests.post(self.url, json=payload, headers=self.headers, timeout=300)
         response.raise_for_status()
         data = response.json()
         return [item["embedding"] for item in data["data"]]
@@ -50,7 +50,7 @@ class SiliconFlowEmbeddings(Embeddings):
             "input": input,
             "encoding_format": "float"
         }
-        async with httpx.AsyncClient() as client:
+        async with httpx.AsyncClient(timeout=300) as client:
             response = await client.post(self.url, json=payload, headers=self.headers)
             response.raise_for_status()
             data = response.json()
@@ -101,7 +101,7 @@ class SiliconFlowReRankerModel:
             "Content-Type": "application/json"
         }
         try:
-            response = requests.post(url, json=payload, headers=headers)
+            response = requests.post(url, json=payload, headers=headers, timeout=300)
             response.raise_for_status()
             results = response.json()
             return [{"document": item["document"]["text"], "score": item["relevance_score"], "index": item["index"]} for item in results["results"]]
@@ -138,7 +138,7 @@ class SiliconFlowReRankerModel:
             "Content-Type": "application/json"
         }
         try:
-            async with httpx.AsyncClient() as client:
+            async with httpx.AsyncClient(timeout=300) as client:
                 response = await client.post(url, json=payload, headers=headers)
                 response.raise_for_status()
                 results = response.json()
@@ -173,7 +173,7 @@ class XinferenceReRankerModel:
         }
         
         try:
-            response = requests.post(url, json=params, headers=headers)
+            response = requests.post(url, json=params, headers=headers, timeout=300)
             response.raise_for_status()  # 检查响应状态
             results = response.json()
             
@@ -206,7 +206,7 @@ class XinferenceReRankerModel:
         }
         
         try:
-            async with httpx.AsyncClient() as client:
+            async with httpx.AsyncClient(timeout=300) as client:
                 response = await client.post(url, json=params, headers=headers)
                 response.raise_for_status()  # 检查响应状态
                 results = response.json()