优化点取消订阅逻辑：从轮询列表中移除所有传入点，并记录订阅点和轮询点的移除数量

src/connection.rs

@@ -1147,13 +1147,6 @@ impl ConnectionManager {
                 .retain(|_, point_id| !removed_set.contains(point_id));
         }
 
-        // 从轮询列表中移除已取消订阅的点
-        {
-            let mut status = self.status.write().await;
-            if let Some(conn_status) = status.get_mut(&source_id) {
-                conn_status.poll_points.retain(|p| !removed_set.contains(&p.point_id));
-            }
-        }
         let _ = self
             .remove_point_write_target_cache_by_point_ids(&removed_point_ids)
             .await;
@@ -1170,9 +1163,27 @@ impl ConnectionManager {
                 history_data.remove(point_id);
             }
         }
+
+        // 从轮询列表中移除传入的点，并记录移除的轮询点数量
+        let polling_removed_count = {
+            let mut status = self.status.write().await;
+            if let Some(conn_status) = status.get_mut(&source_id) {
+                let before_count = conn_status.poll_points.len();
+                conn_status.poll_points.retain(|p| !target_ids.contains(&p.point_id));
+                let after_count = conn_status.poll_points.len();
+                before_count - after_count
+            } else {
+                0
+            }
+        };
+
+        // 计算从订阅点和轮询点移除的总数
+        let total_removed = removed_point_ids.len() + polling_removed_count;
         tracing::info!(
-            "Unsubscribed {} points from source {}",
+            "Unsubscribed {} points (subscription: {}, polling: {}) from source {}",
+            total_removed,
             removed_point_ids.len(),
+            polling_removed_count,
             source_id
         );
         Ok(removed_point_ids.len())