Description

Introduce support for a TTL (Time-To-Live) configuration for prebuilt workspaces, enabling automatic invalidation and replacement of unclaimed prebuilds after a specified duration.

When defining a prebuild in Terraform, users should be able to set the maximum lifetime of a prebuild using theinvalidate_after_secs field under thecache_invalidation block. After this duration has passed, the prebuild should be considered stale and be replaced automatically.

prebuilds = {  instances = 2  cache_invalidation = {    invalidate_after_secs = 86400 // 1 day  }}

This feature will help prevent stale workspaces due to outdated codebases or infrastructure changes (e.g., new VM images).