Fix EntityAttribute dataclass to include name, type, and options fields

backend/db_manager.py

@@ -67,13 +67,20 @@ class EntityAttribute:
     """实体属性值"""
     id: str
     entity_id: str
-    template_id: str
+    template_id: Optional[str] = None
-    value: str
+    name: str = ""  # 属性名称
+    type: str = "text"  # 属性类型
+    value: str = ""
+    options: List[str] = None  # 选项列表
     template_name: str = ""  # 关联查询时填充
     template_type: str = ""  # 关联查询时填充
     created_at: str = ""
     updated_at: str = ""
     
+    def __post_init__(self):
+        if self.options is None:
+            self.options = []
+
 @dataclass
 class AttributeHistory:
     """属性变更历史"""