Behavior: Looks up the media by the provided ID, which can be a public asset ID, a share ID, or a live channel ID. If the media is found, returns a JSON model. If an error occurs, falls back to returning an HTML error page as a ContentResult.

Authorization: No authorization required. This is a publicly accessible endpoint for embedded content.

Side Effects: None. This is a read-only operation.

Error Scenarios: If the ID is empty or null, a validation exception is thrown. If the media cannot be found, a not-found exception is thrown. Any other errors result in an HTML error page being returned with content type text/html.