Mike-Solar
1ad2d71c81
编辑 > 链接/重新链接 (Cmd+L) was an unhandled stub (PanelCommandHandler::toggle_links returned false), so linking clips never created graph links and linked drags never happened. - graphops::set_clips_linked: one undoable entry toggling every pair of the selection; the undo restores the exact prior internal topology. - RealEngine::toggle_clip_links: fully-linked selections unlink, otherwise the selection links together (the C++ crude "any member has ANY link" rule would have made split halves — which inherit the original clip's A/V links — impossible to link to each other). - TimelinePanel overrides toggle_links, routing the timeline selection. - MockEngine stores demo link pairs. - Test: link_unlink_toggles_the_selection_links — dropped A/V pair toggles off/on with undo, and split halves link manually.