feat: 移除未使用的 turtledemo.penrose 导入，优化代码整洁性

DB.py

@@ -41,6 +41,7 @@ video_op = Table(
     Column("updatetime", Integer),
     Column("batch", BigInteger),
     Column("machine", Integer),
+    Column("is_repeat", Integer),
 )
 
 video = Table(
@@ -532,4 +533,6 @@ class DBSA:
         except Exception as e:
             print(f"[DBSA] flush FAIL: {e}  op={len(op_rows)}  video={len(vid_rows)}")
             for row in vid_rows:
-                cls.push_record(row)
+                db = DBVidcon()
+                db.push_record(row)
+                db.close()