chore: release 0.7.8

[github-actions]

🚀 Release ${version}

0.7.8 (2026-05-14)

Features

• configurable proxy + per-route/backend timeouts (closes #457, #458) (#461) (03d222a)
• external provider URL defaults + cluster-wide LiteLLM URL (closes #438) (#451) (26cd5ae)
• Helm packaging, sample manifest, and concept doc for ModelRouter (#448) (a513fdc)
• ModelRouterReconciler skeleton with spec validation (#445) (9b1a259)
• reconcile router-proxy Deployment, Service, and ConfigMap (#447) (856ecc3)
• router-proxy binary with OpenAI streaming passthrough (#446) (942d09a)
• router-proxy cluster e2e + runtime fail-closed 503 (closes #430) (#450) (75151fa)
• scaffold ModelRouter CRD types and deepcopy (#442) (e6c60b3)

Bug Fixes

• close cloud-tier conns + drop local idle timeout (closes #459) (#460) (173c26a)
• don't quarantine backends on per-attempt context deadline (closes #462) (#463) (80ef9c8)
• e2e: unblock MicroShift SCC diagnostics + bump bootstrap timeout (#466) (0c793b7)
• half-open circuit breaker on proxy + scale-to-zero status (closes #452, #453) (#454) (ac9302c)
• preserve external annotations on reconciler Deployment updates (#468) (de580c1)

Documentation

• add consumer-hardware model matrix guide (#444) (dd07397)
• readme: land ModelRouter prominently for the 0.7.8 release (#464) (deb24bb)
• site: air-gapped, OpenShift, macOS Metal guides + architecture refresh (Tier 1) (#465) (5996a1e)
• site: drop stale "fifteen lines" claim in openshift-install Reference (#467) (ec52ca8)

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[github-actions]

🤖 Created releases:

• v0.7.8

🌻