DSH Tool Autoexpand

Key features

• The switch card at the bottom of the sidebar adopts four-state logic + three-state UI: logically, it cycles between the four levels of "0 non-intervention → 1 expansion → 2 non-intervention → 3 fold". The interface only presents three appearances of "non-intervention/expand/collapse". The two "non-intervention" files are displayed in the same appearance. Click once to switch to one level.
• ExpandAutomatically expand newly rendered tool call cards and immediately expand existing tool cards on the page.
• No interventionStop automatic processing, keep newly arrived cards by default, and do not actively activate existing cards.
• CollapseImmediately collapses all expanded tool cards on the page, leaving newly arrived cards closed.
• Expand or collapse only the top-level folded rows of the card, and will not accidentally open the folded rows of the internal ReadBlock / TerminalBlock / DiffBlock / SearchBlock.