Update AOIs for an existing video and return calculated metrics.

This endpoint differs from the POST /{media_id}/aois/static endpoint:

• POST /{media_id}/aois/static starts a background static AOI calculation on the video. It queues the computation via VideoStaticAOIPrediction and returns HTTP 202 with a simple {"detail": ...} message once the job has been accepted. No AOI metrics are returned in that response.
• PUT /{media_id}/aois performs a synchronous AOI calculation using the already available video results (video.results["saliency"]). It calls the external video_aoi_service and returns HTTP 200 together with the full calculation output.

Response:

• On success, returns HTTP 200 with a body matching the VideoAOIsCalculationResponse schema, containing the calculated AOI results for the submitted AOIs and frame ranges, along with associated metadata.
• On error, returns an appropriate HTTP status with a Detail payload.