[woksin]

Added

• Kanban boards can let users select a card with the mouse or keyboard (selectionMode: single) and publish the selected card's original row as selectedItem, the same output tables use. (Let hosts read the selected card from KanbanBoard #268)

[woksin]

Reviewer notes

• Review workflow: round 1 found an Escape-key blocker, fixed in f2c7318; round 2 passed on f2c7318 against main 650a4c0.
• Local gates on f2c7318 all exited 0: yarn ci, verify-packages, verify-blueprints, Storybook build, browser tests for blueprint.default (1375 tests) and the PrimeReact adapter (107 tests).
• Not run locally: the browser suites for the other blueprints (only blueprint.default changed). CI covers them.