- Support multiple CodeBuddy accounts: -auth comma-separated or -auth-dir
- Round-robin request distribution to balance quota usage across accounts
- Auto-parse 429 rate-limit reset time (e.g. '将在 ... UTC+8 重置'),
cooldown-block the offending account until reset, failover to others
- Per-account serialization lock (same account queues, different accounts parallel)
- status/refresh commands now cover the whole account pool
- Unit tests for reset-time parsing, rate-limit detection and round-robin
