Announcing Spegel v0.2.0

The focus of this release has been on cleaning up the codebase, increasing test coverage, and simplifying future extensions. A few minor, non-breaking bugs introduced in v0.1.0 have also been fixed. Beyond that, the two main improvements that matter to end users are: a new cleanup mechanism added to the Helm chart, and the introduction of prebuilt binary releases for Spegel. Cleanup of Mirror…