# Task: Add content detail back navigation

## Goal

Make it easy to return to the Content calendar or upcoming list after opening a content item detail page.

## Scope

- Add a visible back control to `ContentItemDetailView`.
- Preserve the originating Content page view state when navigating from calendar or upcoming entries.
- Keep the change frontend-only.

## Relevant Files

- `frontend/src/features/content/views/ContentItemsView.vue`
- `frontend/src/features/content/views/ContentItemDetailView.vue`

## Validation

```bash
cd frontend
npm run build
```
