refactor(notice): 移除调试用打印语句

- 删除了邮件内容的打印语句，减少日志噪音
- 优化代码，提高可读性和性能

notice.py

@@ -36,8 +36,6 @@ def from_email(email: dict):
     sender_display = email["sender"].replace(' ', '\n').replace('"', '')
     recipient_display = email["recipient"].replace(' ', '\n')
 
-    print("邮件内容:", email)
-
     return PushMessage(
         title="新邮件通知",
         content=f'您有一封来自[{email["sender_name"] if email["sender_name"] else email["sender_email"]}]的邮件',