develop
CI: Apply Go linter recommendations to remaining "pkg/..." code #5330
Config: Normalize Site/CDN base URLs to strip default ports #5590
Links: Use canonical trailing-slash form for website URLs
Pkg: Move /service/http/... to /http/... and add package /http/dns
Cluster: Compact code comments in the OIDC follow-up changes
Cluster: Add cluster OIDC, branded authorize errors, and sign-out