Migrate Forum Host and Keyword Optimizer to use OpenAI client.

@@ -3,8 +3,7 @@
 使用硅基流动的Qwen3模型作为论坛主持人，引导多个agent进行讨论
 """
 
-import requests
-import json
+from openai import OpenAI
 import sys
 import os
 from typing import List, Dict, Any, Optional
@@ -39,13 +38,17 @@ class ForumHost:
             api_key: 硅基流动API密钥，如果不提供则从配置文件读取
         """
         self.api_key = api_key or GUIJI_QWEN3_API_KEY
-        self.base_url = "https://api.siliconflow.cn/v1/chat/completions"
-        self.model = "Qwen/Qwen3-235B-A22B-Instruct-2507"  # 使用更大的模型
-        
+
         if not self.api_key:
             raise ValueError("未找到硅基流动API密钥，请在config.py中设置GUIJI_QWEN3_API_KEY")
-        
-        # 记录历史发言，避免重复
+
+        self.client = OpenAI(
+            api_key=self.api_key,
+            base_url="https://api.siliconflow.cn/v1"
+        )
+        self.model = "Qwen/Qwen3-235B-A22B-Instruct-2507"  # Use larger model variant
+
+        # Track previous summaries to avoid duplicates
         self.previous_summaries = []
     
     def generate_host_speech(self, forum_logs: List[str]) -> Optional[str]:
@@ -204,43 +207,23 @@ class ForumHost:
     @with_graceful_retry(SEARCH_API_RETRY_CONFIG, default_return={"success": False, "error": "API服务暂时不可用"})
     def _call_qwen_api(self, system_prompt: str, user_prompt: str) -> Dict[str, Any]:
         """调用Qwen API"""
-        headers = {
-            "Authorization": f"Bearer {self.api_key}",
-            "Content-Type": "application/json"
-        }
-        
-        data = {
-            "model": self.model,
-            "messages": [
-                {"role": "system", "content": system_prompt},
-                {"role": "user", "content": user_prompt}
-            ],
-            "max_tokens": 14639,
-            "temperature": 0.6,
-            "top_p": 0.9
-        }
-        
         try:
-            response = requests.post(
-                self.base_url, 
-                headers=headers, 
-                json=data, 
-                timeout=300 # 超时设置300s
+            response = self.client.chat.completions.create(
+                model=self.model,
+                messages=[
+                    {"role": "system", "content": system_prompt},
+                    {"role": "user", "content": user_prompt}
+                ],
+                max_tokens=14639,
+                temperature=0.6,
+                top_p=0.9,
             )
-            response.raise_for_status()
-            
-            result = response.json()
-            
-            if "choices" in result and len(result["choices"]) > 0:
-                content = result["choices"][0]["message"]["content"]
+
+            if response.choices:
+                content = response.choices[0].message.content
                 return {"success": True, "content": content}
             else:
                 return {"success": False, "error": "API返回格式异常"}
-                
-        except requests.exceptions.Timeout:
-            return {"success": False, "error": "API请求超时"}
-        except requests.exceptions.RequestException as e:
-            return {"success": False, "error": f"网络请求错误: {str(e)}"}
         except Exception as e:
             return {"success": False, "error": f"API调用异常: {str(e)}"}
     

@@ -3,7 +3,7 @@
 使用Qwen AI将Agent生成的搜索词优化为更适合舆情数据库查询的关键词
 """
 
-import requests
+from openai import OpenAI
 import json
 import sys
 import os
@@ -46,11 +46,15 @@ class KeywordOptimizer:
             api_key: 硅基流动API密钥，如果不提供则从配置文件读取
         """
         self.api_key = api_key or GUIJI_QWEN3_API_KEY
-        self.base_url = "https://api.siliconflow.cn/v1/chat/completions"
-        self.model = "Qwen/Qwen3-30B-A3B-Instruct-2507"
-        
+
         if not self.api_key:
             raise ValueError("未找到硅基流动API密钥，请在config.py中设置GUIJI_QWEN3_API_KEY")
+
+        self.client = OpenAI(
+            api_key=self.api_key,
+            base_url="https://api.siliconflow.cn/v1"
+        )
+        self.model = "Qwen/Qwen3-30B-A3B-Instruct-2507"
     
     def optimize_keywords(self, original_query: str, context: str = "") -> KeywordOptimizationResponse:
         """
@@ -178,35 +182,22 @@ class KeywordOptimizer:
     @with_graceful_retry(SEARCH_API_RETRY_CONFIG, default_return={"success": False, "error": "关键词优化服务暂时不可用"})
     def _call_qwen_api(self, system_prompt: str, user_prompt: str) -> Dict[str, Any]:
         """调用Qwen API"""
-        headers = {
-            "Authorization": f"Bearer {self.api_key}",
-            "Content-Type": "application/json"
-        }
-        
-        data = {
-            "model": self.model,
-            "messages": [
-                {"role": "system", "content": system_prompt},
-                {"role": "user", "content": user_prompt}
-            ],
-            "max_tokens": 10000,
-            "temperature": 0.7
-        }
-        
         try:
-            response = requests.post(self.base_url, headers=headers, json=data, timeout=30)
-            response.raise_for_status()
-            
-            result = response.json()
-            
-            if "choices" in result and len(result["choices"]) > 0:
-                content = result["choices"][0]["message"]["content"]
+            response = self.client.chat.completions.create(
+                model=self.model,
+                messages=[
+                    {"role": "system", "content": system_prompt},
+                    {"role": "user", "content": user_prompt}
+                ],
+                max_tokens=10000,
+                temperature=0.7,
+            )
+
+            if response.choices:
+                content = response.choices[0].message.content
                 return {"success": True, "content": content}
             else:
                 return {"success": False, "error": "API返回格式异常"}
-                
-        except requests.exceptions.RequestException as e:
-            return {"success": False, "error": f"网络请求错误: {str(e)}"}
         except Exception as e:
             return {"success": False, "error": f"API调用异常: {str(e)}"}