Compute croissant in workers
The croissant metadata is computed by workers and stored in the cache

When served by the API service, and if `?full=false` is passed in the query, the columns are limited to 1,000 in the response.

fix #2521 
Compute croissant in workers: The croissant metadata is computed by workers and stored in the cache

When served by the API service, and if `?full=false` is passed in the query, the columns are limited to 1,000 in the response.

fix #2521 