Refactor lifespan with ChainBuilder for initialization tasks

- Replace manual initialization sequence with ChainBuilder pattern
- Add ChainBuilder class supporting both sync and async task chaining
- Rename test_init() to data_base_init() for clarity
- Fix string formatting in log messages (remove f-string where
  unnecessary)
- Fix escape sequence in department schema documentation
- Convert CheckinType to Enum for better type safety

service/wecom/schemas/departments.py

@@ -7,7 +7,7 @@ class CreateDepartmentParams(BaseSchema):
     """
     创建部门
 
-    @param name: 部门名称。长度限制为1~32个字节，字符不能包括\:?”<>
+    @param name: 部门名称。长度限制为1~32个字节，字符不能包括\\:?”<>
     @param name_en: 英文名称
     @param parentid: 父部门id。根部门id为1
     @param order: 在父部门中的次序值。order值小的排序靠前。