All 5 milestones landed today in one continuous session: registry,
health cache, fallback router, observability, and consumer migration.
115 service-side tests, validator covers 2538 files.
Centralized resilience-layer in mana-llm: callers send semantic aliases
(`mana/long-form`, `mana/structured`, …), the router resolves to a
provider chain and falls back through unhealthy providers via a 30s
health-probe loop. Triggered by today's GPU-server outage that hung
the writing-generation endpoint for 75s before 500.
5 milestones, ~3 dev-days, big-bang migration (no live yet → no legacy).
All hardcoded `ollama/...` strings move into a single aliases.yaml SSOT,
new validate-llm-strings.mjs gate prevents regression.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
