feat: 批注 + 评分功能

backend/diary/models.py

@@ -104,6 +104,7 @@ class Comment(models.Model):
     content_type = models.CharField('内容类型', max_length=20, choices=CONTENT_TYPE_CHOICES)
     object_id = models.IntegerField('内容 ID')
     content = models.TextField('批注内容')
+    score = models.IntegerField('评分', null=True, blank=True, help_text='1-10 分')
     created_by = models.CharField('创建者', max_length=100, default='北极星')
     created_at = models.DateTimeField('创建时间', auto_now_add=True)
 
@@ -113,7 +114,8 @@ class Comment(models.Model):
         verbose_name_plural = '批注'
 
     def __str__(self):
-        return f"{self.content_type} #{self.object_id} - {self.created_by}"
+        score_text = f' | {self.score}分' if self.score else ''
+        return f"{self.content_type} #{self.object_id} - {self.created_by}{score_text}"
 
 
 class Task(models.Model):