fix: keep edited user message in history, clear only messages after it

crates/core/src/sessions.rs

@@ -201,6 +201,19 @@ pub fn delete_messages_after(db: &Connection, conversation_id: &str, rowid: i64)
     Ok(())
 }
 
+/// 删除某条消息之后（不含该消息）的所有消息。
+pub fn delete_messages_strictly_after(
+    db: &Connection,
+    conversation_id: &str,
+    rowid: i64,
+) -> Result<()> {
+    db.execute(
+        "DELETE FROM messages WHERE conversation_id = ?1 AND rowid > ?2",
+        params![conversation_id, rowid],
+    )?;
+    Ok(())
+}
+
 pub fn save_message_version(
     db: &Connection,
     message_id: &str,