chore: submit package to Glasskube catalog

[SebTardif]

Summary

Submit Attune as a package to Glasskube, the Kubernetes package manager.

How

Submit a PR to glasskube/packages following their packaging guide.

Package Definition

• Name: attune
• Source: Helm chart from oci://ghcr.io/attune-io/charts/attune
• Category: Monitoring / Resource Management
• Description: Kubernetes operator for safe, in-place pod resource right-sizing

Why

Glasskube (3k+ stars) is a growing Kubernetes package manager with both CLI and GUI. It includes kube-prometheus-stack but has no VPA or right-sizing tool. Adding Attune fills that gap and exposes it to Glasskube's user base.

Effort

1-2 hours (create package manifest, test, submit PR).

Context

Gap analysis: Prometheus Operator is in Glasskube (via kube-prometheus-stack). VPA is not. Adding Attune makes it the first right-sizing tool in the catalog.

[SebTardif]

Issue opened: glasskube/glasskube#1564
PR submitted: glasskube/packages#932

Package uses the manifest-only approach (same as gateway-api in their catalog), pointing to our install.yaml release asset. CI is currently failing repo-wide on glasskube/packages (schema endpoint 403 + broken glasskube binary download URL), affecting all open PRs, not specific to ours.