Delete DeepSeek Harness sessions from the UI: header danger button + sidebar session-row menu item (no conversation jump), risk-consent dialog with session name/id, stops running agents first, in-place list refresh without page reload. Works in web and the desktop client.
Delete DSH conversations instead of archiving them, see the whole family a conversation spawned (its subagents and derived conversations), and delete in bulk. / 真正删除 DeepSeek Harness 里的会话，并看清它生出的子智能体与派生对话。
