Recommendations

List and inspect content recommendations.

`GET /v1/brands/{brand_id}/recommendations`

Union of content topics (action_recommendations) and legacy page optimizations (cms_page_recommendations), newest first.

Query	Values
`type`	`content_topic` \| `page_optimization`
`status`	lowercase token, e.g. `pending`, `completed`
`priority`	`high` \| `medium` \| `low`
`limit`, `cursor`	keyset

The current Website engine's versioned change sets are a different resource (/website/changes).

Adds topic (category, article type, generation status, target/gap query) or page (field, label, current text, suggested text, reasoning).