Voice messages follow Auto-send, and Undo this change asks first

Four fixes in the chat.

• Auto-send voice messages works. With it on, a finished voice message is sent at once. Turn it off in Settings > AI defaults to check the text before you send it. Before, every voice message was sent at once, whatever the setting said.
• Voice input uses the project's credits. It is charged to the workspace that pays for the project, as the agent's work is. Before, it used your Personal workspace's credits, even in a team project.
• Undo this change asks first. Undoing a change also undoes every change the agent made after it. When there are any, Playcode now asks and says how many. The newest change is still undone at once.
• Memory Records are gone. The agent stopped reading them in July 2026, so the app no longer offers them. Put lasting rules for the agent in the project's AGENTS.md: see Memory.