v6.8.51-2

Changelog

• bb28cd2 Add GitLab Duo OAuth and PAT support
• 54c3eb1 Add GitLab Duo auth and executor support
• a00f774 Add GitLab Duo usage docs
• 0468654 Merge PR router-for-me#424 from router-for-me/main
• cf74ed2 Merge pull request router-for-me#2013 from router-for-me/model
• df5595a Merge pull request router-for-me#428 from LuxVTZ/feat/gitlab-duo-auth-plus
• d7ec707 Merge upstream/main into main
• ad7d799 ci(release): avoid dirty git state in goreleaser workflow
• d1e3195 feat(codex): register models by plan tier
• c631df8 feat(gitlab): add duo streaming transport
• a24f4ac feat(gitlab): route duo anthropic via gateway
• dcb1c9b feat(gitlab): route duo openai via gateway
• 30d5c95 feat(registry): refresh model catalog from network
• efbe36d feat(updater): change models refresh to one-time fetch on startup
• e333fbe feat(updater): update StartModelsUpdater to block until models refresh completes
• 8553cfa feat(workflows): refresh models catalog in workflows
• 76f2359 test(gitlab): add duo claude handler smoke
• 9daf1ba test(gitlab): add duo openai handler smoke