feat: 新增重算脚本和统计脚本，更新README

image_similarity_check.py

@@ -249,7 +249,7 @@ class ImageSimilarityChecker:
                 SET status = 'similarity',
                     similarity = 'yes',
                     similarity_image_tags_id = %s,
-                    `similarity score` = %s,
+                    similarity_score = %s,
                     updated_at = NOW()
                 WHERE id = %s
             """
@@ -371,6 +371,9 @@ class ImageSimilarityChecker:
                 total_unique += uniq
                 
                 self.logger.info(f"批次结果: 重复={dup}, 不重复={uniq}, 失败={fail}")
+                
+                # 批次间休息，避免数据库连接问题
+                time.sleep(1)
         
         finally:
             if self.db_conn: