Bug Fixes
- Limits/Proxy: Token refresh + usage fetch now BOTH run inside proxy context (fixes SOCKS5 Codex accounts)
- CI: Integration test v1/models gracefully handles empty models list in CI
- Settings: Proxy test button results render with priority over background health data
New Features
- Playground: Account selector dropdown for testing specific connections
Maintenance
- Merged PR #623 — LongCat API base URL path correction
936/936 tests pass ✅