Concurrent fan-outs could burst past the free-tier rate limit; callers
swallowed the 429s as missing data, and the championship hub cached the
resulting partial season for its full TTL (observed live: 8 of 22
rounds, zero wins/podiums/form).
- requestPacer spaces live requests (350ms anonymous, 100ms with key);
cache hits never wait
- get() retries 429s up to 3 times honouring Retry-After (capped 10s)
- hub tracks per-meeting fetch failures and caches incomplete
aggregates for only 2 minutes instead of 15min/24h
Verified against the live API: 2026 hub now reports all 22 rounds with
wins/podiums/form populated.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
