Issues found by Claude Opus 4.5 + Gemini 3 Pro:
HIGH PRIORITY FIXES:
- Mark account rate-limited when 429 occurs during retry (was losing resetMs)
- Add exponential backoff between retries (500ms, 1000ms, 2000ms)
- Fix 5xx handling: don't pass error response to streamer, refetch instead
- Use recognizable error messages (429/401) for isRateLimitError/isAuthError
MEDIUM PRIORITY FIXES:
- Refactor while loop to for loop for clearer retry semantics
- Simplify logic flow with early returns
Code review by: Claude Opus 4.5 + Gemini 3 Pro Preview
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
1c80c8ba52