ProxyPool:
- Add cooldowns map (host:port::model -> expiry) and cooldownDuration (60s default)
- Add markRateLimited(model) — puts current proxy in cooldown for a model
- Add isProxyInCooldown, isIndexInCooldown, isCurrentInCooldown checks
- Modify rotate(model?) — skip proxies in cooldown for the given model
- Add setCooldownDuration(ms) for configuration
SessionProxyPool:
- Add markRateLimited(sessionId, model) — delegates to underlying pool
- Modify rotateNow(sessionId, model?) — skip cooldown proxies
- Modify acquire(sessionId, model?) — skip cooldown when picking least-loaded
- Modify pickLeastUsedIndex(model?) — skip cooldown proxies in scan
fetch-utils.ts:
- Add extractModel helper — extracts model from context string
- On HTTP 429: call markRateLimited(model) before markFailed
- Pass model to rotate() / rotateNow() / acquire() throughout
Co-Authored-By: Claude <noreply@anthropic.com>
