- TodoView collapses to a single-panel navigation stack (list -> items with Back) via container query when narrow (right dock); wide two-panel layout unchanged.
- Embedded Import Tasks body scrolls vertically so the preview can be much taller (stacked layout gives the preview natural height; wide layout keeps internal scroll).
- Add a shared ViewHeader component (icon + CC-style title + wrapping actions) for consistent main-view headers.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
