Fix/bug en zh (#389)

* [fix]The log retains genuine alerts and errors, while filtering out unnecessary noise.

* [fix]Scenario English and Chinese, emotion specifications

* [fix]Change the "no data" scenario from 0.0 to None

* [fix]The emotional health indicators, emotional advice, and emotional distribution analysis are all linked together.

* [fix]The emotional health indicators, emotional advice, and emotional distribution analysis are all linked together.

* [fix]Separate expected errors from unexpected errors

* [changes]Translation of emotion labels, and the list of hosts arranged in the order of creation

* [changes]Translation of emotion labels, and the list of hosts arranged in the order of creation

api/app/services/emotion_analytics_service.py

@@ -124,17 +124,17 @@ class EmotionAnalyticsService:
             # 将查询结果转换为字典，方便查找
             tags_dict = {tag["emotion_type"]: tag for tag in tags}
 
-            # 补全缺失的情绪维度，并翻译 emotion_type
+            # 补全缺失的情绪维度，直接使用英文枚举key（前端自行翻译）
             complete_tags = []
             for emotion in all_emotion_types:
                 if emotion in tags_dict:
                     tag = tags_dict[emotion].copy()
-                    tag["emotion_type"] = self._translate_emotion_type(emotion, language)
+                    tag["emotion_type"] = emotion
                     complete_tags.append(tag)
                 else:
                     # 如果该情绪类型不存在，添加默认值
                     complete_tags.append({
-                        "emotion_type": self._translate_emotion_type(emotion, language),
+                        "emotion_type": emotion,
                         "count": 0,
                         "percentage": 0.0,
                         "avg_intensity": 0.0

api/app/services/memory_dashboard_service.py

@@ -55,7 +55,7 @@ def get_workspace_end_users(
 ) -> List[EndUser]:
     """获取工作空间的所有宿主（优化版本：减少数据库查询次数）
     
-    返回结果按 updated_at 从新到旧排序（NULL 值排在最后）
+    返回结果按 created_at 从新到旧排序（NULL 值排在最后）
     """
     business_logger.info(f"获取工作空间宿主列表: workspace_id={workspace_id}, 操作者: {current_user.username}")
     
@@ -71,13 +71,13 @@ def get_workspace_end_users(
         app_ids = [app.id for app in apps_orm]
         
         # 批量查询所有 end_users（一次查询而非循环查询）
-        # 按 updated_at 降序排序，NULL 值排在最后；id 作为次级排序键保证确定性
+        # 按 created_at 降序排序，NULL 值排在最后；id 作为次级排序键保证确定性
         from app.models.end_user_model import EndUser as EndUserModel
         from sqlalchemy import desc, nullslast
         end_users_orm = db.query(EndUserModel).filter(
             EndUserModel.app_id.in_(app_ids)
         ).order_by(
-            nullslast(desc(EndUserModel.updated_at)),
+            nullslast(desc(EndUserModel.created_at)),
             desc(EndUserModel.id)
         ).all()