# Restore Delete Button in Mobile List Views and Fix Edit Action Bar

## Summary

The `MobileListView` component accepted `onItemDelete` and `onItemDuplicate` callbacks but never rendered the corresponding action buttons. This change restores the delete button (and adds duplicate support) in each mobile list row for any view that supplies the callback.

In addition, the sticky bottom action bar added to `MobileEditView` in the previous change was positioned behind the 64px mobile navigation bar, making the Save and Delete buttons impossible to see on mobile. The bar is now raised above the navigation and given a higher z-index.

## Motivation

Users need a quick way to remove config profiles and tool types directly from the mobile list without first opening the edit view. The callback props already existed, so wiring them up restores intended behavior.

Users also reported that the Save/Delete buttons in the mobile edit view were not visible. Investigation showed the fixed-position action bar was rendering underneath the persistent mobile bottom navigation.

## Scope

- `MobileListView` shared component.
- `ToolWorkshopMobileView` (passes `onItemDelete`).
- `ConfigProfilesMobileView` already passed `onItemDelete`; it now actually renders.
- `MobileEditView` sticky action bar CSS (`utilities.css`).
- Mobile list item action CSS (`utilities.css`).

## Acceptance Criteria

- [x] `MobileListView` renders a delete button when `onItemDelete` is provided.
- [x] `MobileListView` renders a duplicate button when `onItemDuplicate` is provided.
- [x] Tapping delete/duplicate does not also trigger the row click.
- [x] `ToolWorkshopMobileView` list rows show the delete button.
- [x] `ConfigProfilesMobileView` list rows show the delete button.
- [x] Rows without delete/duplicate still show the chevron.
- [x] The `MobileEditView` sticky bottom action bar sits above the mobile navigation bar.
- [x] Save and Delete buttons in the edit view are visible and reachable.

## Related

- `openspec/changes/mobile-edit-default-bottom-actions`
- `openspec/changes/mobile-config-profiles-ui`
- `openspec/changes/mobile-tool-profile-ui`
