Is your feature request related to a problem? Please describe.

Currently, when a workspace in Coder is deleted, all data is lost permanently unless external backup processes for all workspaces have been set up. Organizations that use S3-compatible object storage lack a simple, integrated way to back up and recover workspaces.

Describe the solution you'd like

Enable a built-in feature that allows automatic, scheduled, and pre-deletion backups of workspaces directly to any S3-compatible storage service. The feature should include:

• Backup and restore via standard S3 API operations.

• Support for custom S3 endpoints, access keys, and buckets.

• Configurable backup frequency and policies (e.g., daily, before delete, on demand).

• UI and/or CLI function to restore workspaces from S3-compatible backups, even if a workspace was deleted.

• Retention and auto-purge options for backups, following standard S3 behavior.