Replace racy check-then-increment RPM logic with atomic increment-first
pattern to prevent concurrent requests from bypassing the rate limit.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Replace racy check-then-increment RPM logic with atomic increment-first
pattern to prevent concurrent requests from bypassing the rate limit.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>