Unrecoverable refresh errors (invalid_grant/invalid_request) are persisted as
a refreshBlocked marker so the background scheduler stops hammering the
provider every 5 minutes and surfaces re-login required; the marker is lifted
automatically when a later refresh succeeds. Cooldown maps gained lazy pruning.
Background probe fetches ipinfo through each pool itself (provider-agnostic
transport), fills an egress IP/country cache (TTL 1h, 8-IP history) and flags
flapping relays as unstable. Periodic state sweeper (10 min) prunes expired
fitness marks, stale geo/ip-history and Freebuff session/cooldown state;
schedulers skip non-server runtimes. Unit tests for the geo cache.
Pool/IP fitness registry (globalThis-backed, provider::model scopes, 5-min
cooldown, provider::* wildcard) fed by pool-scoped failures: freebuff
limited-IP / model-locked gates and opencode free per-IP limits. chatCore
retries a failed pool via another pool without locking the account; new
Smart rotation strategy (per-connection + no-auth providers) skips unfit
pools. Proxy Fitness dashboard page: active-block table with provider/IP
filters, per-record Clear and provider-scoped Clear All; egress column via
pool geo enrichment. Unit tests for the registry.