chore: 更新配置模板，同步超时参数

src/main/resources/application.properties.template

@@ -34,8 +34,8 @@ ai.model=${AI_MODEL:gpt-3.5-turbo}
 ai.temperature=0.7
 ai.top-p=0.8
 ai.max-tokens=2048
-ai.connect-timeout=60
-ai.read-timeout=120
+ai.connect-timeout=30
+ai.read-timeout=300
 
 # Tencent Hunyuan (used when ai.provider=tencent-hunyuan)
 ai.tencent-hunyuan.secret-id=${TENCENT_SECRET_ID:YOUR_TENCENT_SECRET_ID}